Dr. G Ajith Kumar

Personal Profile

NAme : G.Ajith kumar

Phone: 210-617-6552 (Mob)
E-Mail: akgsh2005@gmail.com

EDUCATION:

Ph.D., Physics, 1998
School of Pure and Applied Physics, Mahatma Gandhi University, India
Thesis Title -Time Resolved Spectroscopy and Energy Transfer Mechanisms in Optical Material Using Laser Excitation.
M.S., Physics, with First Class (GPA:3.0/4.0), 1992
Cochin University of Science & Technology, India

B.S., Physics, with First Class and distinction (GPA:3.5/4.0), 1989
Mahatma Gandhi University, India

PROFESSIONAL EXPERIENCE:

2019 Onward Adjunct faculty, Texas A& M University, San Antonio, Texas. 2017 Onward Adjunct faculty, Northwest Vista College, San Antonio, Texas. 2013 -19 Lecturer, Department of Physics and Astronomy, University of Texas at San Antonio. 2012 Onward Adjunct faculty, Center for atomic and molecular spectroscopy, Manipal University, India. 2011-2012 Research associate, Department of Physics and Astronomy, University of Texas at San Antonio
2008-2010 Director of Technology, Sunstone bioscience (Joint position with University of Pennsylvania
2002-2008 Research associate, Department of Materials science and Engineering, Rutgers-The state university of New Jersey
2001-2002 Research associate, Institute for Laser Science, University of Electro Communication, Tokyo, Japan
2000-2001 Scientist A, Center of Investigations in Optics (CIO), Mexico
1998-2000 Research Associate, International School of Photonics, Cochin University of Science and Technology, India
1996-98 Senior research fellow, School of Pure and applied Physics, Mahatma Gandhi University, India
1993-95 Junior research fellow, School of Pure and applied Physics, Mahatma Gandhi University, India

RESEARCH EXPERIENCE AND EXPERTISE:

Twenty-five years of experience in photonic materials, spectroscopy and material science. Areas of expertise include multifunctional optical materials, synthesis, modeling and characterization of various nanomaterials, nanocomposites, single crystals, ceramics, glasses, semiconductors, thin films, fluoro polymers and their active and passive applications such as lasers, energy conversion, photo catalysis, optical fibers, planar

waveguides, security markers, scintillators, lighting, medical imaging, therapy, bio-sensors, plastic recycling, optical displays, and memories.

TECHNICAL SKILLS

Materials synthesis: Solid state and wet chemical methods, glass melting, preform fabrication, solvothermal, hydrothermal, microwave, thermolysis, combustion, homogeneous precipitation, reactive atmospheric processing, zone melting and refining, chemical vapor deposition, thin film coating, optical fiber pulling, spin coating, surface functionalization, bio-conjugation, phosphor and dye-based security inks.
● Materials characterization: SEM, TEM, EDS, DLS, ICP, BET, XRD, TGA, DSC, FTIR, Raman, UV-visible, AFM, mechanical properties, electrical properties.
● Optical and spectroscopic characterization: optical absorption/transmission/reflection, steady state and time resolved fluorescence, fluorescence decay, quantum yield measurements, laser parameters, optical gain, confocal imaging, multiphoton absorption, nonlinear experiments, optical colorimetry, ellipsometry, interferometry, laser induced breakdown spectroscopy, photoacoustic spectroscopy, well experienced with several lasers such as Optical parametric oscillators, various pulsed lasers (ns, ps and fs),Nd YAG laser, N2 laser, He-Cd laser, He-Ne laser, Ar laser, Dye laser, fiber lasers, semiconductor lasers and Ti-S laser, various types of UV-VIS-NIR spectrometers, spectrograph, TCSPC, spectrum analyzers, detectors (PMT, InGaAs, Silicon, Ge, PbS), InGaAs imaging cameras, lock in amplifiers, optical choppers, various types of gratings, filters, and spectroscopy instrumentation.
● Computational: Monte Carlo model for energy transfer, transition probability and laser parameters using Judd-Ofelt parametrization, Crystal field and energy level calculations, Density functional calculations, waveguide modelling using finite methods, optical gain calculation using differential equations, Simulation of materials properties using Materials studio, Numerical computation of the absorption and emission line shapes in rare earth doped materials, Composition dependent optimization and modeling of rare earth doped material for applications like solid- state laser or fiber amplifier design Composition dependent optimization and modeling of rare earth doped material for applications like solid- state laser or fiber amplifier design, Energy transfer modeling in rare earth doped crystalline and amorphous materials using standard theoretical models, Simulation of the size and composition dependent optical band gap and related absorption and emission spectral properties in quantum dot systems.
● Magnetic characterization: Magnetization measurement with SQUID, field cooling, zero field cooling, magnetic moment calculation, and analysis of magnetic materials.
• Animal experiments: In vitro and in vivo animal imaging (Optical, CT, and MRI) with functionalized nanoparticles in animal models, cell culture, drug

delivery,cytotoxicity, light-tissue interaction, tissue damage, depth of penetration, monte-carlo modeling in tissues, experience with various animal models, completed the following courses by American Association for Laboratory Animal Science (AALAS)
1. Ethical case 1-Mouse in parasitology experiments.
2. Ethical case 2-Rats with partial paralysis.
3. Ethical decision making in animal research.
4. Pain management in laboratory animals.
5. Post-procedure care of mice and rats in research: minimizing pain and distress.
6. Working with Institutional Animal Care and Use Committee (IACUC).
● Instrumentations:Various high temperature PID controlled furnaces, horizontal two zone furnaces, traveling furnaces for zone melting and refining, thermocouples, x-ray diffractometers, spectrophotometers (Hitachi, Perkin Elmer, Shimadzu), spectrofluorimeter (Shimadzu), spectrum analyzers, refractometer, hardness tester (BHN), optical polisher, FTIR and Raman spectrometer, electrometer, fluorescence spectrometer (SPEX,PTI,Ocean optics), visible and NIR CCD cameras, photo multiplier tube, IR detectors, light meters, storage oscilloscopes, lock in amplifiers, semiconductor lasers, Ar laser, He-Cd laser, N2 laser, optical parametric oscillator(MOPO), Nd YAG laser, TiS laser, He-Ne laser, Flash lamp, VUV lamps, optical fiber tower, surface area (BET), particle size measurements (DLS),optical microscopes, confocal scanning microscope, photoacoustic spectrometer, Spin coater, freeze drier, Ultrasonic probes, TEM,SEM,XRF,SQUID magnetometer, and AFM
● Computer skills: Microsoft Office (Word, Excel, PowerPoint), FORTRAN, EndNote, Origin Lab, Materials studio, Jade, X`pert, Mathematica, Mathlab, Maple, Mercury, Image J, Photoshop, TracePro, Zemax, Slicer, GATAN.
● Problem solving skills.
● Design of experiments and prototypes.
● Performance improvements and IP creations.
● Data acquisition, collection, analysis and presentation.
● Excellent funding history from various industrial and federal agencies.
● Excellent oral and written communication skills.
● Worldwide collaborations

Nationality:

US citizen

AWARD AND SCHOLORSHIPS:

1. State Scholarship holder in the graduate level
2. Junior Research Fellowship (Dept. of Atomic Energy, Govt. of India) 1992-95
3. Senior Research Fellowship (Dept. of Atomic Energy, Govt. of India) 1996-98
4. Research Associate (Dept. of Science and Technology Govt. of India) 1998-2000
5. Korean Govt. Scholarship (2000)
6. Mexican Govt. Scholarship (2000)
7. Canadian Govt. Scholarship (2001)
8. Japanese Govt. Scholarship 2001-02
9. Merit award for research Excellence- Rutgers University-2007.
10. Merit award for research Excellence- Rutgers University-2008.
11. SPIE green Photonics award for research excellence in Photonics-2012.

PUBLICATIONS

Patents
1. Thermodynamically stable solutions of chalcogenide-activated lanthanide compounds with improved quantum efficiency-US20080246003, WO2007086905A2
2. Lanthanide based down conversion phosphors for Hg free white lighting applications (pending)
3. Method of preparing efficient infrared emitting materials and its applications (pending)
4. Method of preparing efficient down conversion luminescent materials and its applications (pending)
5. Near infrared emitting Er and Yb doped CeF3 nanoparticulates with no visible upconversion – US20130032759
6 .Multifunctional materials with core-shell free structures (US patent application pending)
7.Intracellular theranostics of critically ill Covd-19 patients through antibody functionalized ultraviolet-C emitting nanoparticles(US patent application pending)

Book Chapters

1. Neodymium doped nanomaterials and organometallic cluster: design strategies for Photonic applications. G.A. Kumar – In Doped Nanomaterials and Nano devices (American Sci. Publishers, USA)
2. Er doped phosphate glasses for applications in fiber amplifiers. E. de. La Rosa Cruz and G.A. Kumar-Topics in Modern Physics (Rinton Publishers, USA)
3. Theranostics with Near Infrared Sensitive Rare-Earth Doped Luminomagnetic Nanoplatforms.G. A. Kumar,C.Dannangoda, and K. S. Martirosyan, In Nanoengineering, Quantum Science, and, Nanotechnology Handbook,CRS Press.
3. Rare earth doped bulk and nano phosphors- from laboratory to large scale production (To be published).
4. Upconversion in lanthanides and their Photonics applications (To be published).

Journal Articles

Published
. LiNbO3-Tm3+ crystal. Material for optical cooling, Ninel Kokanyan , Nune Mkhitaryan, Gagik Demirkhanyan, Ajith Kumar, Michel Aillerie, Dhiraj Sardar, Edvard Kokanyan, Crystals 11(1),50(2021)
132.Synthesis of superparamagnetic zic ferrite encased fluorapatite nanoparticles and its cytotoxicity effects on MG-63 cells. S. Karthi, P. Vivek, D. Karthickraja, G.A. Kumar, C. Dannangoda, K.S.Martirosyan, D.K.Sardar, E.K. Girija.J.Cluster science( 2021) DOI:10.1007/s10876-020-01946-w
131.NaGdF4:Yb,Er-Ag nanowire hybrid nanocomposite for multifunctional upconversion emission, optical imaging, MRI and CT imaging applications Yamini S, Gunaseelan M, Kumar GA, Singh S, Dannangoda GC, Martirosyan KS, Sardar DK, Sivakumar S, Girigoswami A, Senthilselvan J.Microchim.Acta 8;187(6):317(2020)
130.Reverse microemulsion synthesis of mixed α and β phase NaYF4:Yb,Er nanoparticles: calcination induced phase formation, morphology, and upconversion emission
M. Gunaseelan, S. Yamini, G. A. Kumar, D. K. Sardar, J. Senthilselvan
Journal of Sol-Gel Science and Technology https://doi.org/10.1007/s10971-020-05340-w
129.Synthesis and characterization of lanthanide-doped sodium holmium fluoride nanoparticles for potential application in photothermal therapy.Kaushik Das, G. A.
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Kumar, Leonardo Mirandola, Maurizio Chiriva-Internati & Jharna Chaudhuri Frontiers of Materials Science volume 13, pages389–398(2019)
128.Tailoring the defect center via charge compensation in Nd3+ and Yb3+ doped CaF2 nanoparticles for tuning the intensity of infrared emission and validation of the feasibility of optical bioimaging.D. Karthickraja a, G.A. Kumar b,c,d, D.K. Sardar b, S. Karthi e, G.C. Dannangoda f, K.S. Martirosyan f, M. Prasath g, M Gowri a, E.K. Girija a*
ACS biomaterials(Under revision)
127. Synthesis of NIR emitting rare earth doped fluorapatite nanoparticles for bioimaging applications. Girija, E.K.; Karthi, S.; Karthickraja, D.; Kumar, G.A.; Sardar, D.K.; Santhosh. C.Curr. Phys. Chem., 2019, 9(2), 80-93.
126. Lanthanide doped complexes and organometallic clusters: Design strategies and their applications in biology andphotonics.G.A.Kumar,Curr.Phys.Chem.,2019,9(3),166-271.
125. Fabrication of core-shell CoFe2O4@HAp nanoparticles: A novel magnetic platform for biomedical applications.D. Karthickraja, S. Karthi, G.A. Kumar, D.K. Sardar, G.C. Dannangoda, K.S. Martirosyan, E.K. Girija, New Journal of Chemistry 43(34)(2019)
124. PMAO coated Na(Gd0.5Lu0.5)F4:Nd3+ nanocrystals as multifunctional contrast agent with NIR optical, X-ray and magnetic imaging properties, L.ChristopherMimun,GangadharanAjithkumar,FransiscoPedraza,ChrisRightsell,Andy T.Tsin,Dhiraj K.Sardar, J.Mat.Sci and Engi C,101,283-291(2019)
123. Luminomagnetic Nd3+ doped fluorapatite coated Fe3O4 nanostructures for biomedical applications, S.Karthi,G.A.Kumar,D.K.Sardar, Chamath Dannangoda, Karen S. Martirosyan E.K. Girija,J.AM.Cer.Soc102,2558-2568(2018)
122.Photon upconversion characteristics of intense green emitting BaYF5: Yb3+, Er3+ nanoclusters prepared by reverse microemulsion,”,M Gunaseelan, S Yamini, GA Kumar, C Santhosh,Materials Research Bulletin, 107,366-378(2018)
121.“Synthesis and characterizations of Nd3+: Yb3+ co-doped near infrared sensitive fluorapatite nanoparticles as a bioimaging probe,” S. Karthi, G. A. Kumar, D. K. Sardar, C. Santhosh, E. K. Girija, Optical Materials, 77,39-47 (2018).
120. Efficient NIR Emission from Nd, Er, and Tm Complexes with Fluorinated Selenolate Ligands”Wu, Wen; Zhang, Xin; Kornienko, Anna; A. Kumar, G.; Yu, Dechao; Emge, Thomas; Riman, Richard; Brennan, John,Inorg.Chem.57(4),1912-18 (2018)
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119.Spectroscopic identification of rare earth elements in phosphate glass, Praveen Devangad, Maktum Tamboli, K.M. Muhammed Shameem, Rajesh Nayak, Ajeetkumar Patil, V.K. Unnikrishnan, C. Santhosh, G.A. Kumar, Laser Physics 28,015703(2018).
118.Highly efficient upconversion luminescence in hexagonal NaYF4: Yb3+, Er3+ nanocrystals synthesized by a novel reverse microemulsion method, Gunaseelan, S Yamini, GA Kumar, J Senthilselvan, Opt.Mat M .75,174-186(2018). Impact factor-2.02
117. Comment on “Structural and NIR to Visible Upconversion Properties of Er 3+ -doped LaPO4 Phosphors” N. Saltmarsh, G.A. Kumar, D.K. Sardar, Chamath Dannangoda, Karen S. Martirosyan. Journal of Luminescence,185,180–186(2017) Impact factor-2.14
116.Fluorapatite coated iron oxide nanostructure for biomedical applications S.Karthi,G.A.Kumar,D.K.Sardar, Chamath Dannangoda, Karen S. Martirosyan E.K. Girija ,Mat.Chem.Phys, 193,356–363(2017) Impact factor-2.10
115. Emission Enhancement through Nd3+-Yb3+ Energy Transfer in Multifunctional NaGdF4 Nanocrystals. F.Pedraza, C.Riggtsell, G.A.Kumar, C.Monton, Dhiraj K. Sardar, Applied Physics Letters110(22):223107(2017) Impact factor-3.41
114.Optical characterization of infrared emitting Nd3+ doped hydroxyapatite nanoparticles prepared by hydrothermal method,K. Gayathri,G.A. Kumar,,Solange Ivette Rivera Manrique,C. Santhosh,Dhiraj K. Sardar,Journal of Luminescence,185,180–186(2017) Impact factor-2.14
113.Investigations on nickel ferrite embedded calcium phosphate nanoparticles for biomedical applications ,T. Ruthradevi · J. Akbar · G. Suresh Kumar ,G.A.Kumar, E.K. Girija, J. Alloys and Compounds, 25,3211–3219(2017). Impact factor-2.99
112.Synthesis and characterization of Na(Gd0.5Lu0.5)F4: Nd3+,a core-shell free multifunctional contrast agent ,L. Christopher Mimun,G.A.Kumar,Chris Rightsell,Dhiraj K. Sardar ,Journal of Alloys and Compounds 695, 280–285(2017). Impact factor-2.99
111.Water dispersion of magnetic nanoparticles with selective Biofunctionality for enhanced plasmonic biosensing. Zhong Mei, Ashish Dhanale, Ajithkumar Gangaharan, Dhiraj Kumar Sardar, Liang Tang.Talanta, 151, 23-29 (2016).
Impact factor-3.54
110.A bright yellow light from Yb3+, Er3+-co-doped Y2SiO5 upconversion luminescence material, Bui The Huy Bounyavong Sengthong, Phan Van Do, Jong Won Chung, Gangadharan Ajith Kumar, Vu Xuan Quang, Van-Duong Dao and Yong-Ill Lee RSC.Adv 6,92454-92462(2016)
109.Microwave assisted synthesis and characterizations of near infrared emitting Yb/Er doped fluorapatite nanoparticles, S.Karthi, G. Suresh Kumar, G.A.Kumar, C.Santhosh, D.K.Sardar, E.K. Girija ,J. Alloys and Compounds, 25,525–532(2017). Impact factor-2.99
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108.Quantitative analysis of rare earth elements in phosphate glasses by Laser Induced Breakdown Spectroscopy (LIBS) Praveen Devangad, V K Unnikrishnan, Rajesh Nayak, M M Tamboli, C Santhosh, G A Kumar and D K Sardar-Optical materials.52,32-37(2016). Impact factor-1.98
107.Spectroscopic and Magnetic Properties of Neodymium Doped in GdPO4 Nanostars Prepared by Solvothermal Method, G A Kumar, Nicolas R. Balli, M. Kailasnath, L. Christopher Mimun, Chamath Dannangoda, Karen S. Martirosyan, C. Santhosh, and Dhiraj K. Sardar- J. All.Compd 672,668-673 (2016).
Impact factor-2.99
106.5d-4f emission of Eu2+ and electron-vibrational interaction in several sulfides co-doped with Eu and Er.G.A. Kumar* and M.G. Brick. Optical materials. 50,199-203(2015). Impact factor-1.98
105.Electronic and optical properties of Err-doped Y2O2S phosphors , M. Pokhrel · G. A. Kumar · C.-G. Ma · M. G. Brik Brian W. Langloss · Ian N. Stanton · Michael J. Therien · D. K. Sardar · Yuanbing Mao. Journal of Materials Chemistry 3,11486-496(2015), Impact factor 4.69.
104.Depth-Resolved Multispectral Sub-Surface Imaging Using Multifunctional Upconversion Phosphors with Paramagnetic Properties, Zaven Ovanesyan, L. Christopher Mimun, G.A. Kumar, Brian G. Yust, Chamath Dannangoda, Karen S. Martirosyan and Dhiraj K. Sardar, ACS Applied Materials and Interface 7,21465-71(2015) Impact factor-6.72.
103. NIR emission from molecules and clusters with lanthanide–chalcogen bonds,” G.A.Kumar, R.E.Riman and J.G.Brennan Coord. Chem. Rev. 273–274, 111(2014) Impact factor-12.23
102. Highly efficient NIR to NIR and VIS upconversion in Er3+ and Yb3+ doped in M2O2S (M = Gd, La, Y),” M. Pokhrel, G. A. Kumar, and Sardar, D.K., J. Mater. Chem A. 1, 11595 (2013) Impact factor-6.62
101. Highly Efficient Near Infrared to Near Infrared Photoluminescence in GdF3:Nd3+ Nanoparticles for Bioimaging,” Nanoscale 6, 1667(2014). Impact factor-7.39
100. High upconversion quantum yield at low pump threshold in Er/Yb doped La2O2S phosphor, G.A. Kumar, D.K. Sardar et.al. Mat.Lett.99.86 (2013). Impact factor-2.48
99. Calibration based laser-induced breakdown spectroscopy (LIBS) for quantitative analysis of doped rare earth elements in phosphors V.K. Unnikrishnan, Rajesh Nayak, Praveen Devangad, M.M. Tamboli, C. Santhosh, G.A. Kumar, and D.K. Sardar. Mat. Lett. 107,322 (2013). Impact factor-2.48
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98. Three-dimensional quasicrystalline photonic material with five-fold planar symmetry for visible and infrared wavelengths by holographic assembly of quasicrystalline photonic heterostructures. Ovanesyan, Zaven, Pudasaini, Pushpa Raj, G.A. Kumar; Marucho, Marcelo. Opt.Mat.Exp. 3, 1332(2013) Impact factor-2.84
97. Absolute quantum yield measurements in Yb/Ho doped M2O2S (M=Y, Gd, La) upconversion phosphor, G.A. Kumar, D.K. Sardar et.al. Mat.Lett.98.63 (2013). Impact factor-2.48
96. Multimodal bioimaging using a rare earth doped Gd2O2S: Yb/Er phosphor with upconversion luminescence and magnetic resonance properties, G.A. Kumar, D.K. Sardar et.al.J.Mat.Chem.1.1561 (2013). Impact factor-6.6
95. Bimodal imaging using Nd3+ doped GdF3 nanocrystals with near-infrared to near infrared luminescence and magnetic resonance properties, C. Mimun, G.A. Kumar, D.K. Sardar et.al, J.Mat.Chem.1,5702(2013). Impact factor-6.6
94. Comparative studies of the spectroscopic properties of Nd3+: YAG nanocrystals, transparent ceramic and single crystal P. Madhab, G.A. Kumar et.al.Opt.Mat.Exp.2, 235(2012) Impact factor-2.84
93. Synthesis and spectroscopy of Color Tunable Y2O2S: By, Er phosphors with Intense Emission, G.A. Kumar et.al, J. All.Copmp.513, 559(2012). Impact factor-2.99
92. Synthesis and Up conversion spectroscopy of YbEr doped M2O2S (M=La, Gd, Y) phosphors, G.A. Kumar et.al, Sci.Adv. Mat.4.623 (2012). Impact factor-2.59
91. Energy converting material for solar cell application Madhab, G.A.Kumar et.al Proc. SPIE.8256,1(2012)
90. Efficient Energy Transfer Between Ce3+/Cr3+ and Nd3+ ions in Transparent Nd/Ce/Cr: YAG ceramics.P. Samuel, G. A Kumar, Takagimi Yanagitani, Hideki Yagi, Ken Ichi Ueda andS.MoorthyBabu.Opt.Mat.34,303(2011).Impactfactor-1.97
89. Infrared and upconversion spectroscopic studies of high Er3+content transparent YAG ceramic, Madhab, G.A. Kumar et.al. Opt.Mat Exp.7, 1272(2012). Impact factor-2.84
88.Optical characterization of Er3+ and Yb3+ co-doped barium fluorotellurite glass, Pokhrel, M., Kumar, G.A., Balaji, S., Debnath, R., Sardar, D.K., Journal of Luminescence, 132, 1910 (2012) Impact factor-2.14
87. Infrared excited YbEr: Y2O2S: phosphors with intense emission for lighting applications. G.A. Kumar, Madhab et.al. Proc. SPIE 8278, 82780E (2012)
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86.Highly efficient phosphors in cancer sensing and PDT. Brian G. Yust, Lawrence C. Mimun, Dhiraj K. Sardar, and G. A Kumar Peter J. Hornsby and Jason Rocha. Proc. SPIE 8233, 823312 (2012)
85. Novel applications of diagnostic X-rays in activating photo-agents through X-ray induced visible luminescence from rare-earth particles: An in-vitro study. Erkinay Abliza, Joshua E. Collins, Joseph S. Friedberg, G.A Kumar, Howard Bell, Ronald W. Waynant, and Darrell B. Tatd. Proc. SPIE 7565, 75650B (2010).
84. Infrared light utilized for photodynamic therapy by activation of rare earth phosphors for visible light generation. Joshua E. Collins, Thiru V. Lakshman, Jarod E. Finlay, G.A Kumar, Howard Bell, Ba T. Nguyen, Valery Belov, Jun Luo, Joseph S. Friedberg Proc. SPIE 6427, 642717 (2007)
83. Ab initio, crystal field and experimental spectroscopic studies of KZnF3 and KZnF3:Ni2+ crystals.M.G. Brik and G.A.Kumar.Mat.Chem.Phys.1, 90(2012) Impact factor-2.12
82. 2.1 μm Emission spectral properties of Tm and Ho co-doped transparent YAG ceramic, G.A. Kumar et.al. Sci.Adv. Mat.4, 617 (2012). Impact factor-2.59
81. Intense visible and Near Infrared Upconversion in M2O2S: Er (M=Y, Gd, La) phosphor under 1550 nm excitation, G.A. Kumar et.al. Mat.Lett.68, 395(2012). Impact factor-2.48
80. Highly NIR emissive Lanthanide Polyselenides, A. Kornienko, Brian Moore, G.A. Kumar, John Brennan et.al. Inorg.Chem.50, 9184 (2011) Impact factor-4.76
79. A Solvothermal Route to Size- and Phase-Controlled Highly Luminescent NaYF4: Yb, Er Upconversion Nanocrystals, Q Wang, R. Zhuo, G.A. Kumar et.al.J. Nanosc.Nanotec 10(3), 1685(2010). Impact factor-1.55
78. Spectroscopic study of the Pr-doped BiBO glass and Ca4GdO(BO3)3 single crystals”, A. Majchrowski, M.G. Brik, G.A. Kumar, K. Ozga, I. Sildos, A. Suchocki, A. Ślęzak, T. Łukasiewicz, I.V. Kityk, Journal of Rare Earths 27 (2009) 612–615. Impact factor-1.34
77. In vivo Multiple Color Lymphatic Imaging Using Upconverting Nanocrystals. Kobayashi, Smith, J. Collins, C B Murray, G. A. Kumar et.al.J. Mat.Chem 19, 6481(2009). Impact factor-6.6
76. Near Infrared-Emitting Er- and Yb-Er- Doped CeF3 Nanoparticles with No Visible Upconversion. M C Tan, G A Kumar et.al.Opt.Exp.17, 15904(2009). Impact factor-3.48
75. Synthesis and optical characterizations of infrared emitting YF3: Nd nanoparticles.M C Tan, G. A. Kumar et.al.J.Appl.Phys.106 (6), 063118(2009). Impact factor-2.18
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74. Near-IR emission from Holmium-Ytterbium co-doped alkali bismuth gallate and fluorophosphates fiber glass performs.M.A. Martinez Gámez, G.A. Kumar et.al. J.Alloys.Comp.473, 500(2009). Impact factor-2.99
73. Intense NIR Emission from Nanoscale Lanthanide Fluoride Clusters Michael Romanelli, G. A. Kumar, Thomas J. Emge, Richard E. Riman, and John G. Brennan. Angew Chem.Int. Ed 47, 6049(2008). Impact factor-11.26
72. Thiolate-Bound Thulium Compounds: Synthesis, Structure, and NIR Emission Santanu Banerjee, G. A. Kumar, Thomas J. Emge, Richard E. Riman, and John G. Brennan. Chem.Mat 20, 4367(2008). Impact factor-8.35
71. Spectral analysis of Er3+, Er3+/Yb3+, Er3+/Tm3+/Yb3+ – doped TeO2-ZnO-WO3-TiO2-Na2O glasses.G. Lakshminarayana, Jianrong Qiu, M.G. Brik, G.A. Kumar, I.V. Kityk J. Phys.Cond. Matter .20, 375101(2008). Impact factor-2.34
70. Spectral analysis of RE3+ (RE = Er, Nd, Pr and Ho): GeO2-B2O3-ZnO-LiFglasses.G. Lakshminarayana, Jianrong Qiu, M.G. Brik, G.A. Kumar, I.V. Kityk J. Phys.Cond. Matter .20, 375104(2008). Impact factor-2.34
69. Oxoclusters of the Lanthanides Begin to Resemble Solid-State Materials at Very SmallCluster Sizes: Structure and NIR Emission from Nd (III). Banerjee, S; G.A. Kumar; Riman, Richard. E, Emge, Thomas J.; Brennan, John G. J.Am. Chem.Soc129 (18), 5926. (2007). Impact factor-12.11
68. Optical Characterization of Infrared Emitting Rare-Earth-Doped Fluoride Nanocrystals and Their Transparent Nanocomposites. G.A. Kumar, C. -W. Chen and R.E. Riman. Chem. Mat. (2007), 19(6), 1523. Impact factor-8.35
67. Near Infrared optical characteristics of Chalcogenide Bound Nd organometallic Complexes.G. A. Kumar, Richard E. Riman, Santanu Banerjee, Anna Kornienko, L.A. Diaz Torres, John G. Brennan. Chem.Mat. 19(12), 2937(2007) Impact factor-8.35
66. Engineered solution synthesis of rare-earth nanomaterials and their optical properties. Riman, Richard E., Kumar, G. A., Atakan, V.; Brennan, John G.; Ballato, J. Proc.SPIE (2007), 6707 670707. (Invited)
65. Molecular Minerals™: Lyophillic Colloids for Ceramists. R.E. Riman, S. Banerjee, G.A. Kumar, T. J. Emge, and John G. Brennan. J.Amer.Cer.Soc.89 (6), 1809(2006.) Impact factor-2.42
64. Optical properties of single crystal Nd3+-doped Bi4Ge3O12: Laser transitions at room and low temperature.G.A. Kumar, R.E. Riman, A.A. Kaminskii, R. Praveena, C.K. Jayasankar, I.K. Bae, S.C. Chae and Y.N. Jang. Phys.Rev. B 74(1), 014306(2006). Impact factor-3.66
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63. Spectroscopic and stimulated emission characteristics of Nd3+ in transparent Y2O3 ceramics. G A Kumar, J.Lu, A.A.Kaminskii and K Ueda. IEEE J. Quantum. Elec.42 (7), 643(2006). Impact factor-2.13
62. Spectroscopic studies of solvothermally derived LaF3: Nd Nanocrystals.G.A. Kumar, C. W. Chen and Richard E Riman. J. Nanosc.Nanotech 8(12), 6558(2008) Impact factor-1.55
61. Infrared Fluorescence and optical gain Characteristics of new Er nanoorganometallic polymer composites. G.A. Kumar, A. Kornienko, S. Banerjee, J.G. Brennan, R.E. Riman, S. Chen, D. Smith and J. Ballato. Appl. Phys. Lett. 88(9), 091902(2006). Impact factor-3.51
60. Upconversion Emission in Er3+ Doped CaF2 Nanocrystals. G.A. Kumar, C. -W. Chen and R.E. Riman. Appl. Phys. Lett.90 (9), 093123(2007). Impact factor-3.51
59. Optical properties of CaF2: Er/6F polymer composite wave-guide. G. A. Kumar, C.W. Chen, R.E. Riman, S. Chen, D. Smith and J. Ballato. Appl.Phys. Lett, 86(2005), 241105. Impact factor-3.51
58. Oxyselenido Clusters of the Lanthanides: Rational Introduction of Oxo Ligands andNear-IR Emission from Nd (III). S. Banerjee, L. Huebner, M.D. Romanelli, G.A. Kumar, R.E. Riman, T. J. Emge, and John G. Brennan. J.Am. Chem.Soc 127, 15900(2005). Impact factor-12.11
57. Heterometallic Chalcogenido Clusters Containing Lanthanides and Main GroupMetals: Emissive Precursors to Ternary Solid State Compounds. Anna Kornienko, S. Banerjee, G.A. Kumar, R. Riman, T.J. Emge, J.G. Brennan J.Am.Chem.Soc.127, 14008(2005). Impact factor-12.11
56. Lanthanide Clusters with Internal Ln Ions: Highly Emissive Molecules with solidState Cores. Anna Kornienko, Thomas J. Emge, G. A. Kumar, Richard E. Riman, and John G. Brennan. J.Am. Chem.Soc. 127, 3501(2005). Impact factor-12.11
55. Radiative and non radiative spectroscopic properties of Er3+ ion in tellurite glass.G. A. Kumar, H. Desirena, E. De la Rosa. Opt.Comm.260 (2), 601(2006). Impact factor-1.54
54. Chalcogenide-Bound Erbium Complexes: Paradigm Molecules for Infrared Fluorescence Emission.G. A. Kumar and Richard E. Riman, Santanu Banerjee, Anna Kornienko, JohnG. Brennan. Chem.Mat.17, 5130 (2005). Impact factor-8.35
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53. Photoluminescence of Bound Rare Earth Nanoscale ComplexesL.A. Diaz-Torres, G.A. Kumar, R.E. Riman, S. Banerjee, K. Kornienko, J.G. Brennan.Opt. Mat.29 (1), 12(2006). Impact factor-1.97
52. The luminescent properties of Er3+-Yb3+-doped fluorophosphate fiberglass Preforms at high temperatures. S. G. Cruz Vicente, M. A. Martínez Gámez, A. V. Kir’yanov, and G. A. Kumar. Opt.Mat 27, 1563(2005). Impact factor-1.97
51. Concentration effect of Er3+ ion on the spectroscopic properties of Er3+ andYb3+/Er3+ co-doped phosphate glasses.H. Desirena, E. De la Rosa, L. A. Díaz-Torres, G. A. Kumar. Opt.Mat 28(5), 560(2006). Impact factor-1.97
50.Spectroscopic and stimulated emission characteristics of Nd3+ in transparent YAGCeramics.G.A. Kumar, J. Lu, A.A. Kaminskii and K Ueda. IEEE J. Quant.Ele 40(6), 747(2004). Impact factor-2.13
49.Spectroscopic studies of Er doped CaF2 single crystal for highly efficient 1.53m amplification.G.A.Kumar, S C Chae and R.Riman. J. Appl.Phys 95(7), 3243(2004). Impact factor-2.18
48. Solution Synthesis and Spectroscopic Characterization of High Er3+Content LaF3 for Broadband 1.5m Amplification.G A Kumar, J.Ballato, R Riman and E.Snitzer. J.Appl.Phys. 95(1), 40(2004). Impact factor-2.18
47. Energy transfer from host to the dopant in ZrO2.Sm3+ synthesized by sol gel.E. De la Rosa-Cruz, L.A. Diaz-Torres, P. Salas, R.A. Rodríguez, G.A. Kumar, M.A. Meneses, J.F. Mosiño, J.M. Hernández and O. Barbosa-García. J.Appl.Phys.94, 3509(2003). Impact factor-2.18
46. Non-linear optical response and reverse saturable absorption of rare earthPhthalocyanine in DMF solution. G.A. Kumar. Int.J. Non Linear Opt Mat.12 (3,367) (2003). Impact factor-0.64
45. Enhancement of optical properties of Nd3+ ion in fluorophosphate glass by alkali and Alkaline earth metal co-doping.G.A. Kumar, E De La Rosa, A. Martinez, K. Ueda and O Barbosa. Opt.Mat.22, 201(2003). Impact factor-1.97
44. Effect of borate content on the fluorescent spectral properties of Nd3+ ion in Fluorophosphates glasses. G.A. Kumar, E De La Rosa, K. Ueda and A. Martinez. J. Phys.Chem. Solids 64, 69(2003). Impact factor-1.59
43. A non-fused fiber coupler for side-pumping of double-clad fiber lasers.Jianqiu Xu, , Junhua Lu, G A Kumar, Jianren Lu, K Ueda. Optics Comm.220, 389 (2003) Impact factor-1.54
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42.Fluorescence and Upconversion studies of Ho3+ in potassium bismuth gallate (KGB). Glass.G.A. Kumar, A. Martinez, E. Mejia and J.G. Eden. J.All.Comp.365, 117 (2004). Impact factor-2.99
41. NIR to UV absorption spectra and the optical constants of Phthalocyanines in glassy Medium.G.A. Kumar and N.V Unnikrishnan. Spect.Acta A.59, 1(2003). Impact factor-2.12
40. Spectral studies and radiative characteristics of Nc molecules in DMF. G.A. Kumar and N.V Unnikrishnan. Mat.lett.57, 2315(2003). Impact factor-2.48
39. Fluorescence spectral and energy transfer studies of Sm3+: Pr3+ system in Chloro phosphate glass. G.A. Kumar and A. Martinez. Phys. Chem. Glasses 43C, 228(2002). Impact factor-0.56
37.Optical properties of Porphyrines in inorganic Borate glassy matrix. G.A. Kumar and N.V Unnikrishnan. Mat.Chem. Phys73 (2002) 206. Impact factor-2.13
37. Optical studies of Phthalocyanine molecules in PMMA matrix. G.A. Kumar. Mat.Lett.55 (2002) 364. Impact factor-2.45
36. Radiative properties of Nd3+ ion in fluorophosphates glass containing sulphategroup.G.A. Kumar, E De La Rosa, A. Martinez and O Barbosa. J. Luminesc.99, 141(2002). Impact factor-2.36
35. Energy transfer studies of Rh 6G: RhB mixture in poly methyl methacrylate matrix Investigated by CW laser excitation G.A. Kumar and N V Unnikrishnan. J. Photochem. Photobiol1.153, 145(2002). Impact factor-2.54
34. Growth and optical characterization of LaSm (C2O4) 3 10H2O single crystals G.A. Kumar. J. Phys.Chem. Solids 62, 1327(2001). Impact factor-1.59
33. Energy transfer and optical gain studies of FDS: RhB dye mixture investigated under CW laser Excitation.G.A. Kumar and N V Unnikrishnan. J. Photochem.Photobiol 144,107(2001). Impact factor-2.54
32. Evaluation of spectral parameters and emission characteristics of EuPc and EuNc Molecules in certain polymer matrices. G.A. Kumar and N.V Unnikrishnan. Mat.Lett 51,125(2001). Impact factor-2.48
31. Optical absorption and emission spectral studies of Pc molecules in DMFG.A. Kumar and N.V Unnikrishnan. J. Porphyrines and Phthalocyanines 5,456(2001). Impact factor-1.39
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30. Optical properties of Phthalocyanine molecules in cyano acrylate polymer matrix. G.A. Kumar and N.V Unnikrishnan. Mat.Res. Bull 36, 1(2001). Impact factor-2.39
29. Spectroscopic properties Nd3+ ion in barium fluoroborophosphate glass.G.A. Kumar, E De La Rosa, A. Martinez and O Barbosa. Opt.Materials18, 321(2001). Impact factor-1.97
28. Energy transfer in Tb: Nd system and composition dependence of the J-O parameters and radiative properties of Nd3+ ions of fluorophosphates glasses.G.A. Kumar, Elder de la Rosa-Cruz, Oracio Barbosa-Garcia. Proc.SPIE 4282, 229(2001)
27. Nonlinear optical response and reverse saturable absorption of rare earth Phthalocyanine in DMF solution. G.A. Kumar and Oracio Barbosa-Garcia. Proc.SPIE4268, 69(2001).
26.Fluorescence characterization of the ternary system TMQ-PBDBD365-POPOP-dye-Doped polystyrene optical fiber under gamma and UV irradiation. Elder de la Rosa-Cruz, Diaz-Torres Luis A, Rodriguez-Rojas. R. A., Kumar, G. A., Dirk Carl W., Rodriguez, Osvaldo, Kopecky, Sarah, Hernandez, Jose M., Diaz-Torres, Y. Proc.SPIE 4461, 200(2001).
25. Nonradiative energy transfer process in the system Sm3+: ZrO2 prepared by sol-gelTechnique. Elder de la Rosa-Cruz, Diaz-Torres Luis A, G A Kumar, AvendanoMaximiliano,Salas Pedro, Castano Meneses V, Hernandez Jose M. Proc.SPIE 4452, 25(2001).
24.Spectroscopic characterization of Nd3+ doped barium fluoroborophosphate andFluorosulphatephosphate glasses. Elder de la Rosa-Cruz, G A Kumar, Diaz-Torres Luis A, Martinez Alejandrina,Barbosa Oracio. Proc.SPIE 4452, 31(2001).
23. Optical gain studies in sodium fluorescein: rhodamine B and sodium fluorescein Cresyl violet dye pairs. G C Chenattucherry, G.A. Kumar M a Ittyachen and N V Unnikrishnan. Asian Journal of Spectroscopy 5(3), 123 (2001).
22. Optical absorption studies of free and rare earth phthalocyanine doped borate Glasses.G.A. Kumar and N.V Unnikrishnan. Phys.Chem. Glasses 41(2), 89(2000). Impact factor-0.69
21. Spectral studies of rare earth phthalocyanine and naphthalocyanine doped Inorganic borate glasses. G.A. Kumar and N.V Unnikrishnan. Phys.Chem. Glasses 41(4), 227(2000). Impact factor-0.69
20. Judd-Ofelt intensity parameters and laser analysis of Pr3+ doped phosphate glasses sensitized with Mn2+ ion.G.A. Kumar, P.K. Gupta and N.V Unnikrishnan. J. Non. Cryst. Solids.275 (2000) 93. Impact factor-1.72
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19. Physical and optical properties of phthalocyanine doped inorganic glasses. G.A. Kumar and N.V Unnikrishnan. J. Mat. Sci .35, 1(2000). Impact factor-2.31
18. Emission Spectral studies of phthalocyanines in borate glassy matrices. G.A. Kumar and N.V Unnikrishnan. J.Mat.Sci. Lett.19 (2000) 1669. Impact factor-0.51
17. Optical studies of Phthalocyanine molecules in PVA films. G.A. Kumar. Mat. Lett. 44(5), 275(2000). Impact factor-2.48
16. Evaluation of spectral parameters of Nd3+ ion in Borate Glasses Part II. Judd-Ofelt Parameters. G.A. Kumar and N.V Unnikrishnan. Phys. Chem. Glasses. 40(4), 217 (1999). Impact factor-0.69
15. Energy transfer from Mn2+→Pr3+in phosphate glasses. G.A. Kumar and N.V Unnikrishnan. Mat.Chem and Phys 60,247 (1999). Impact factor-2.13
14. Evaluation of spectral parameters of Nd3+ ion in Borate Glasses Part. I. Slater-Condon, Spin-orbit interaction and Racah parameters. G.A. Kumar and N.V Unnikrishnan. Phys. Chem. Glasses.39 (3), 188(1998). Impact factor-0.69
13. Photo quenching mechanism in rigid (CV) and non-rigid (FDS) dye systems. G C Chenattucherry, G.A. Kumar M a Ittyachen and N V Unnikrishnan.Ind. J. Phys72 (B), 623 (1998). Impact factor-1.79
12.Spectroscopic properties of Sm3+ doped phosphate glasses.P. R Biju, G A Kumar and N V Unnikrishnan. Bull. Mat. Sci 21,101 (1998). Impact factor-1.10
11.Spectroscopic parameters of Nd3+ ion in phosphate glasses. G.A. Kumar and N.V Unnikrishnan.J. Non. Cryst. Solids 221, 47(1997) Impact factor-1.72
10. Energy transfer from Mn2+→Nd3+ in phosphate glasses. G.A. Kumar and N.V Unnikrishnan. Sol.St. Commn.104, 29(1997). Impact factor-1.89
9. Optical absorption studies of Nd3+ and Pr3+ in neodymium praseodymium oxalateDecahydrate G.A. Kumar, M A Ittyachen and N V Unnikrishnan. Cryst. Res Tech.31, K41 (1997). Impact factor-1.12
8. Growth and optical characterization of CdI2 single crystal. G.A. Kumar, S.K Chaudhary, M A Ittyachen and N V Unnikrishnan. Cryst. ResTech.34, 147(1997). Impact factor-1.12
7. Luminescence and stimulated emission studies of Nd3+ ions in Nd2 (SO4) 3 9 H2OCrystals. G.A. Kumar, M A Ittyachen and N V Unnikrishnan. Sol. St. Commn. 221, 47(1997). Impact factor-1.89
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6. Photoelectric characteristics of CdI2 under pulse excitation. G.A. Kumar M a Ittyachen and N V Unnikrishnan. Ind. J. Pure & Appl.Phys.34, 919(1996). Impact factor-0.71
5. Preparation and mechanical characterization of polycrystalline tin. G.A. Kumar M a Ittyachen and N V Unnikrishnan. Ind. J. Pure & Appl.Phys.34, 344(1996). Impact factor-0.71
4. A crystal growth system with modified pulling arrangement and temperature controller. G.A. Kumar, M A Ittyachen and N V Unnikrishnan. Meas. Sc. & Tech. 5.1018(1994). Impact factor-1.35
3. Fluorescence quenching in Dyes under an optically thin approximation. G C Chenattucherry, G.A. Kumar M a Ittyachen and N V Unnikrishnan.Pramana.J.Phys.43, 237(1994). Impact factor-0.72
2. Optical amplification in CsI: In (Tl) ionic crystal under N2 laser excitation. S. Mohan, G A Kumar, R D Singh and N V Unnikrishnan.Opt. Commn.111, 282(1994). Impact factor-1.54
1. Optical gain studies in sodium fluorescein: rhodamine B and sodiumfluroescein cresyl violet dye pairs. Chennattucherry, G. C. ; G.A. Kumar, Venugopal, C. Unnikrishnan, N. V. Asian Journal of Spectroscopy 5(3), 123(2001).

Submitted

1. Near infrared sensitive photosynthesis of chlorophyll by energy conversion upconversion nanophosphor G.A. Kumar, M. Pokrel, C. Mimun and D K Sardar. ACS appl.mat. interface
2. Rare Earth-doped Halide-free Functional Upconversion Nanophosphors with Optical and Magnetic Properties for Multimodal Bio imaging. G.A. Kumar, V. Dravid, and D.K. Sardar. Nano research
3. Time domain analysis of optical amplification in Yb/Er doped CaF2 nanoparticle/6F polymer composite channel waveguide.G.A. Kumar, R.E. Riman, D. Biallo and A. Dorazio.Opt. Mat.Express
4. Determination of Chemical Uniformity of Powder Mixtures, Case 2: Fluorescence as a Mixedness Tool for Rare Earth-Doped Ceramics. Jennifer Czerepinski, G.A.Kumar and R.E.Riman-J.Am.Cer.Soc.
5. Determination of Chemical Uniformity of Powder Mixtures, Case 1: A Computational Approach to Rare Earth-Doped Ceramics. Jennifer Czerepinski, G.A. Kumar and R.E. Riman -J.Am.Cer.Soc.
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6. Highly Efficient NIR Emission from Nd, Er, and Tm Complexes with Fluorinated Selenolate Ligands.Wen Wu, Xin Zhang, Anna Y. Kornienko, G.A. Kumar, Dechao Yu, Thomas J. Emge, Richard E. Riman, and John G. Brennan.Anal.Chem.
In preparation
1. Electronic and optical properties of Nd doped GdPO4 G a Kumar, N Saltmarsh, Nicolas R. Balli, Dannangoda, and Dhiraj K. Sardar – ACS appl.mat. interface
2. Synthesis, Characterization, and Spectroscopic Studies of Er3+-Doped CaF2 Nanocrystals. G. A. Kumar, Chris Rightsell, R.E. Riman, D.K. Sardar- Nano research
3.Infrared emission and optical gain characteristics of ErF nano clusters in various fluoropolymers.G.A. Kumar, S. Banerjee, L. Huebner, M.D. Romanelli, R.E. Riman, T. J. Emge, and John G. Brennan- Material letters
4. Fabrication and characterization of CaF2: Yb/Er nanocrystals polymer nanocomposite planar waveguides. G. A. Kumar, C.W. Chen and R. Riman S. Chen, D. Smith and J. Ballato. -Nano research
5. Scintillation properties of Ce and Tb doped GdBPO4 glass ceramic. G A Kumar, Chaitanya and Dhiraj K. Sardar -Optical materials
6. Energy transfer from Ce to Er and Nd in Gd2O2S G a Kumar, N. Chaitanya and Dhiraj K. Sardar -J. All.Compd
7. Scintillation properties of Ce and Nd co doped LaF3 nanoparticles G a Kumar, Chaitanya and Dhiraj K. Sardar -Mat.lett
8. Characterization of Nd doped hydroxyapatite synthesized by microwave methods. G A Kumar, Brian Petruska and Dhiraj K. Sardar -J.AM.Cera.Soc.
9. Upconversion spectroscopy of Yb/Tm co doped M2O2S (M=Gd, Y. La) phosphor. G A Kumar, M. Kailasnath and Dhiraj K. Sardar -J.Mat.Chem.
10. Near infrared quantum yield of Yb/Tm co doped M2O2S (M=Gd, Y. La) phosphor G a Kumar, M. Kailasnath and Dhiraj K. Sardar -RSC adv.
11.Nd doped GdPO4 nanocubes, a multimfunctional material for medical imaging applications with magnetic, optical and X-ray Contrast G a Kumar, Nicolas R. Balli, Christopher Mimun, Chamath Dannangoda, Karen S. Martirosyan, Santhosh, and Dhiraj K. Sardar –Small
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12.Electronic and optical properties of Nd doped MPO4(M=Gd, Ca, La)-A comparative study G a Kumar, N Satmarsh, Nicolas R. Balli, M G Brik, Santhosh, and Dhiraj K. Sardar-ACS Appl.mat. interface.
13. Radiative and non radiative spectral properties of Er doped LaAlO3 nanoparticles prepared by combustion method. G A Kumar, M. Kailasnath and Dhiraj K. Sardar -J. Mat.Chem
14. Electronic and optical properties of Nd doped LaAlO3. G A Kumar, M G Brik, M. Kailasnath and Dhiraj K. Sardar -J. Mat.Chem
15. Infrared and upconversion quantum yield in Er and Ho co-doped M2O2S (M=Gd, L, Y) Phosphor-G A Kumar, M. Kailasnath and Dhiraj K. Sardar –RSC adv.
16. Optical spectroscopy of Er doped Gd/La/YBO3 phosphor- G A Kumar, M. Kailasnath and Dhiraj K. Sardar –Opt.Mat.
17. Synthesis and optical characterizations of Er doped SrTiO3 nanoparticles- G A Kumar, M. Kailasnath and Dhiraj K. Sardar –Opt.Mat.
18. Efficient Rare Earth doped Nanocrystals with Multimodal Properties for Bio imaging Applications.C.Mimun, G A Kumar, and Dhiraj K. Sardar. ACS Appl.mat. interface. 19. Silica coated Nd3+ doped near infrared emitting NaGdLuF4 nanoparticles with multifunctional properties.C.Mimun, G.A.Kumar, and Dhiraj K. Sardar -Small

Papers in conference proceedings

1.B. G. Yust, L. C. Mimun, D. K. Sardar, G. A. Kumar, P. J. Hornsby, and J. Rocha, “Highly efficient phosphors in cancer sensing and PDT.” The SPIE International Symposium BIOS 2012, San Francisco, California, January 21-26, 2012.
2. M. Pokhrel, G. A. Kumar, and D. K. Sardar, “Energy converting material for solar cell application.” The SPIE International Symposium BIOS 2012, San Francisco, California, January 21-26, 2012.
3. G. A. Kumar, M. Pokhrel, and D. K. Sardar, “Infrared excited YbEr: Y2O2S: phosphors with intense emission for lighting applications,” The SPIE International Symposium BIOS 2012, San Francisco, California, January 21-26, 2012.
4. M. Pokhrel, G. A. Kumar, and D. K. Sardar, “Theoretical and Experimental Analyses of Energy Transfer Mechanisms between Er3+ and Yb3+ Doped in La2O2S.” The SPIE International Symposium BIOS 2013, San Francisco, California, February 2-7, 2013.
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6. M. Pokhrel, G. A. Kumar, and D. K. Sardar, “Plasmon Enhanced Upconversion in Yb3+/Er3+ Doped Y2O3 and NaYF4 Nanocrystalline Hosts”, The SPIE International Symposium BIOS 2013, San Francisco, California, February 2-7, 2013.
7.B. G. Yust, D.K. Sardar, L. C. Mimun, A. K. Gangadharan, A. Tsin, “Rare Earth doped nanoparticles in imaging and PDT” The SPIE International Symposium BIOS 2013, San Francisco, California, February 2-7, 2013.
8.Ajith Gangadharan, Madhab Pokhrel, Mikhail Brik, Dhiraj Sardar, Chong Ma, “Combined Crystal Field and First Principles Studies of the Y2O2s Phosphor Doped with Yb3+ and Er3+”, The 224th ECS Meeting, San Francisco, California, October 27 – November 1, 2013.
9. F. Pedraza, B. Yust, G.A. Kumar, A. Tsin, D. Sardar, ” NIR to NIR upconversion in KYb2F7: RE3+ (RE = Tm, Er) nanoparticles for biological imaging,” SPIE Photonics West – BiOS, San Francisco, California, February 4th, 2014.
10.L. Chris Mimun, Chris Rightsell, Madhab Pokhrel, G. A. Kumar, Brian Yust, Ashish Dhanale, Liang Tang, and Dhiraj K Sardar, “MGdLuF3:Nd3+ (M=K, Na) Nanoparticles for Tri-modal Medical Imaging,” SPIE Photonics West – BiOS, San Francisco, California, February 4th, 2014.
11. B.G. Yust, F. Pedraza, G A Kumar, D.K. Sardar, “Ultrasmall lanthanide-doped nanoparticles as multimodal platforms” SPIE Photonics West – BiOS, San Francisco, California, February 3rd, 2014.
12.Francisco J. Pedraza, Kumar, Julio C. Avalos, Lawrence C. Mimun, Brian G. Yust, Andrew Tsin, and Dhiraj K. Sardar, “Effects of surface chemistry on the optical properties and cellular interaction of lanthanide-based nanoparticles,” SPIE Photonics West – BiOS, San Francisco, California, February 6-12, 2015.
13.Francisco J. Pedraza, G.A. Kumar, Lawrence C. Mimun, Jing Yong Ye, and Dhiraj K. Sardar, “Application of near infrared sensitive multifunctional nanophosphors in optical and photoacoustic imaging,” The American Physical Society Meeting, San Antonio, Texas, March 2-6, 2015.
14. Nicolas Balli, G A Kumar, Chris Mimum, Fancisco Pedraza, and D. K. Sardar, “Synthesis and Characterization of Down-converting Ca8 (PO4)6: Nd3+ Nanocrystals for Biomedical Imaging Applications.” The American Physical Society Meeting, San Antonio, Texas, March 2-6, 2015.
15. Ivan Beeks, Ajith Kumar Gangadharan, and D. K. Sardar, “Measurement of Quantum Yield and Upconversion Brightness in Red, Blue and Green on NIR excited M2O2S: Yb/Er/Tm/Ho Phosphors.” The American Physical Society Meeting, San Antonio, Texas, March 2-6, 2015.
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16.Julio Avalos, C. Mimun, G. A. Kumar, and D. K. Sardar, “Intracellular Imaging Applications of Rare Earth doped Multifunctional Metal Oxysulphide Nanomaterials,” The American Physical Society Meeting, San Antonio, Texas, March 2-6, 2015.
17. L. Chris Mimun, Chris Rightsell, G. A. Kumar, Francisco Pedraza, Sergio A. Montelongo, Teja Guda, Vinayak P. Dravid, and Dhiraj K Sardar, “Development of Multifunctional Luminomagnetic Nanoparticles as Bio Imaging Contrast Agents,” The American Physical Society Meeting, San Antonio, Texas, March 2-6, 2015.
18.F.J. Pedraza, G.A. Kumar, L.C. Mimun, J.Y. Ye, and D.K. Sardar, “Application of near infrared sensitive multifunctional nanophosphors in optical and photoacoustic imaging,” The American Physical Society Meeting, San Antonio, Texas, March 2-6, 2015.
19. G.A. Kumar, M. Pokhrel, C.-G. Ma and Er, M.G. Brik, D.K. Sardar, Combined crystal field and first principles studies of the Y2O2S phosphor doped with Yb Abstract #2731, 224th ECS Meeting, 2013 The Electrochemical Society. San Francisco, California.
20. GA Kumar, M Pokhrel, DK SardarInfrared excited Yb: Er: Y2O2S phosphors with intense emission for lighting applications, SPIE OPTO, 82780E-82780E-8, 2012. San Francisco, California.
21. BG Yust, LC Mimun, DK Sardar, GA Kumar, PJ Hornsby, J Rocha,Highly efficient phosphors in cancer sensing and PDT,SPIE BiOS, 823312-823312-6,2012. San Francisco, California.
22. M Pokhrel, GA Kumar, DK Sardar,Rare Earth Based Upconverting Materials for Solar Cell Application,MRS Proceedings 1471, mrss12-1471-yy08-15,2012. San Francisco, California.
23. BG Yust, GA Kumar, LC Mimun, DK Sardar,,Efficient Upconverting Nanophosphors for Imaging and Photodynamic Therapy,MRS Proceedings 1471, mrss12-1471-yy07-06,2012, San Francisco, California.
24. S Banerjee, A Komienko, GA Kumar, RE Riman, J Ballato, JG Brennan,Chalcogenide-bound erbium complexes and their fluoropolymer composites: Paradigm molecules for Infrared Fluorescence emission,ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY 230, U2258-U2259,2005.
25. S Banerjee, A Kornienko, JG Brennan, GA Kumar, RE Riman,Infrared Fluorescence Emission Characteristics of Chalcogenide-Bound Erbium Complexes and their Fluoropolymer Composites,The 37th Middle Atlantic Regional Meeting,2005
26. E de la Rosa-Cruz, LA Diaz-Torres, RA Rodriguez-Rojas, GA Kumar, Fluorescence characterization of the ternary system TMQ-PBDBD365-POPOP-dye-doped polystyrene
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optical fiber under gamma and UV irradiation,International Symposium on Optical Science and Technology, 200-205,2001
27. GA Kumar, O Barbosa-Garcia, Nonlinear optical response and reverse saturable absorption of rare-earth phthalocyanine in DMF solution, Photonics West 2001-LASE, 69-73,200.
28. D Oh, N Song, JJ Kim, AK Atieh, GV Karve, B Bihari, g a kumar, RT Chen, et.al.
Rare-Earth-Doped Materials and Devices V, Proceedings of SPIE 4282, 1, 2001
29. GA Kumar, E de la Rosa-Cruz, O Barbosa-Garcia, Energy transfer in Tb: Nd system and composition dependence of the JO parameters and radiative properties of Nd3+ ions of fluorophosphates glasses, Symposium on Integrated Optics, 229-238, 2001.
30. Optical gain parameter of a pulsed laser pumped dye systemProc.NLS (IIT Madras) 77, 1993
31. GA Kumar and N V Unnikrishnan, Nonlinear optoelectronic behavior of CdI2 under laser ExcitationProc.NLS (CAT Indore) 131, 1994
32. GA Kumar and N V Unnikrishnan Spectral parameters of Nd3+ in phosphate glass matrixProc.NLS (IRDE Dehradun) 199, 1995
33. GA Kumar and N V Unnikrishnan Spectroscopic parameters of Nd3+ ion in mixed rare earth sulphate crystals. Proc.NLS (BARC Mumbai) 4, 1996
34. GA Kumar and N V Unnikrishnan Evaluation of laser intensity parameters of NdPr (C2O4) 3 10H2O crystals Int.Conf. on Spectroscopy (BARC, Mumbai) 102, 1996
35. GA Kumar and N V Unnikrishnan, Optical absorption studies and the evaluation of spectroscopic parameters of Nd3+ ions in borate Glasses.Proc. II International School of Photonics.Conf. on Borate Glass, Crystals and melt (UK) 1996
36. GA Kumar and N V Unnikrishnan, Upconversion fluorescence in Pr3+ doped phosphate glass under laser excitation International School of Photonics.Conf. on Photonics and Fiber Optics (IIT, Madras)
37. GA Kumar and N V Unnikrishnan Energy transfer from Mn2+→Nd3+ in some phosphate glasses, Proc.NLS (CAT Indore) 112, 1997
38. GA Kumar and N V Unnikrishnan, Static energy transfer from Mn2+→Pr3+ system in phosphate glasses.XXVIII Nat.Sem. on Crystallography (MG Uty, Kottayam) 69, 1997
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39. GA Kumar and N V Unnikrishnan, Energy transfer and optical gain studies of FDS: RhB dye mixture investigated under CW laser excitation International conference on the spectroscopy DSC, New Delhi, 174, 1999
40. GA Kumar and N V Unnikrishnan, Optical properties of Chlorophyll like molecules in inorganic glassy matrix National Laser Symposium Uty.of Hyderabad, 1999.
41. GA Kumar and N V Unnikrishnan, Laser analysis of Pr3+: Mn2+ system in phosphate matrix Spectroscopy of lanthanides and actinides, BARC, 131, 1999.
42. GA Kumar and N V Unnikrishnan, Radiative properties of Sm3+ ion in LaSm (C2O4) 3 10 H2O crystals grown in silica gel, Spectroscopy of lanthanides and actinides, BARC, 143, 1999.
43. GA Kumar, J. Thomas and CPG Vallabhan, Optical limiting studies of phthalocyanine molecules in DMF solution National symposium on high power lasers and their applications, ISP, CUSAT, 1998
44. GA Kumar, Thomas and CPG Vallabhan, Optical limiting studies of phthalocynine molecules in DMF solutions PIE Int. Symp on photonics and its application, Nan yang Uty, Singapore.Dec.1999.
45. G A Kumar and A. Martinez, Fluorescence spectral and energy transfer studies of Sm3+: Pr3+ system in chlorophosphate glassXIX Int.Congress on Glass (UK,)
46. GA Kumar, and N V Unnikrishnan, Energy transfer studies in sodium fluorescene: RhB dye mixture.NLS, Uty. Of Hyderabad, 191(1999)
47. GA Kumar, and N V Unnikrishnan, Fluorescence and gain prediction in Sodium fluorescence: CV dye mixture. Int. Conf. on lasers and their application, St. Joseph’s College, Thiruchirpplly (2000)
48. G A Kumar, and N V Unnikrishnan, Energy transfer process in a ternary dye system XXVI Nat.Symp. of the OSI on optics and Optoelectronics, REC, Warangal (2000)
49. Varadarajan R,G A Kumar and Lisa klien, Effects of heat treatment on optical properties of sol-gel synthesized erbium doped yttrium silicates”, Proceedings of the Sol-Gel Workshop, 2005
50. S.Banargee, G A Kuymar and J.Brennan, Infrared Fluorescence Emission Characteristics of Chalcogenide-Bound Erbium Complexes and their Fluoropolymer Composites, American Chemical Society Meeting on May 23,2005.
51. G A Kumar and R.E Riman, Rare Earth doped nanocomposites for Photonic Applications. American Chemical Society Meeting on June 12, 2005

STUDENT ADVISING/MENTORING

1. Samuel Flores, (Summer Intern Northwest vista college, Topic-biomedical imaging using multifunctional nanomaterials)
2. Dr. Gayathri Krishnan (Visiting researcher, Biomaterials)
3. Nathan, (Summer Intern Northwest vista college, Topic-Rare earth doped nano phosphors synthesis and characterizations)
4. Kyle Everett, (Summer Intern Northwest vista college, Topic-Multifunctional nano phosphors synthesis and characterizations)
5. Solange Ivette Rivera (Short tern PhD student from Petroleum research institute, Mexico)
6. Chaitanya, MS (IIT Bombay, Topic-Nanomaterials and their bio photonics application)
7. Nicholas Saltmarsh, MS (Department of Physics and Astronomy, University of Texas at San Antonio, Topic-Rare earth doped triboluminescent phosphors synthesis and characterizations)
8. Nicholas Balli, BS (Department of Physics and Astronomy, University of Texas at San Antonio, Topic-Biomedical imaging)
9. Julio Alvarez, BS (Department of Physics and Astronomy, University of Texas at San Antonio, Topic-Biomedical imaging)
10. Brian Petruska, BS (Department of Physics and Astronomy, University of Texas at San Antonio, Topic-Biomedical imaging)
11. Robert Slattery, MS (Department of Physics and Astronomy, University of Texas at San Antonio, Topic- Perovskite solar cell)
12. Kamarom Moeni, BS (Department of Biomedical Engineering, University of Texas at San Antonio, Topic-Medical imaging)
13. Furheen Hussain, BS (Department of Biomedical Engineering, University of Texas at San Antonio, Topic-Cellular cytotoxicity)
14. Ashish Dhanale, MS (Department of Biomedical Engineering, University of Texas at San Antonio, Topic-Medical applications of Rare earth doped phosphors)
15. Zak G. Elliott, BS (Department of Physics and Astronomy, University of Texas at San Antonio, Topic-Rare earth doped phosphors synthesis and characterizations)
16. Francisco Pedraza, Ph. D (Department of Physics and Astronomy, University of Texas at San Antonio, Topic-Rare earth doped phosphors synthesis and characterizations)
17. Benjamin Yoo, BS (Health Science and imaging center, University of Texas at San Antonio, Topic-Medical Imaging Applications Rare earth doped phosphors)
18. N. O’Connell – BS (Department of Physics and Astronomy, University of Texas at San Antonio, Topic-Rare earth doped phosphors synthesis and characterizations)
19. Ivan Beek, BS (Department of Physics and Astronomy, University of Texas at San Antonio, Topic-Rare earth doped phosphors synthesis and characterizations)
20. Chris Rightsell, BS (Department of Physics and Astronomy, University of Texas at San Antonio, Topic-Rare earth doped phosphors synthesis and characterizations)
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21. M.Kailsnath, Postdoctoral (Department of Physics and Astronomy, University of Texas at San Antonio, Topic-Multimodal medical imaging applications of Rare earth doped phosphors)
22. Madhab Pokhrel, Ph. D student (Department of Physics and Astronomy, University of Texas at San Antonio, Topic-Rare earth doped phosphors)
23. Chris Mimun, Ph. D student (Ongoing) (Department of Physics and Astronomy, University of Texas at San Antonio, Topic-Biomedical imaging using multifunctional nanoparticles)
24. Varadhraja Ranganathan, Ph. D student (Rutgers Material Science and Engineering, Topic-YbEr doped sol gel glasses)
25. Jennifer Czerepinski, Ph. D student (Rutgers Material Science and Engineering, Computational tools of mixedness in rare earth doped ceramics)
26. Santanu Banerjee, Ph. D Student (Rutgers, Department of Chemistry and Chemical Biology, Topic-Rare earth organometallic clusters)
27. Michael D Romanelli, Ph. D Student (Rutgers, Department of Chemistry and Chemical Biology, Topic-Rare earth organometallic clusters)
28. Kieran Norton, PhD Student (Rutgers, Department of Chemistry and Chemical Biology, Topic-Rare earth organometallic clusters)
29. Anna Kornienko, PhD Student (Rutgers, Department of Chemistry and Chemical Biology, Topic-Rare earth organometallic clusters)
30. Brian F Moore, PhD Student (Rutgers, Department of Chemistry and Chemical Biology, Topic-Rare earth organometallic clusters)
31. Amandeep S Dhillon, BS (Rutgers, Biomedical Engineering, Topic-Rare earth doped Hydroxyapatite)
32. John Kuppler, BS (Rutgers, Material Science and Engineering, Topic-Rare earth doped halides)
33. Gurveen Sawhney, BS (Rutgers, Biomedical Engineering, Topic-Rare earth doped Hydroxyapatite)
34. M C Tan, Post Doctoral (Rutgers, Material Science and Engineering,)
35. Tamar Andelmann-Post Doctoral (Rutgers Material Science and Engineering)
36. Q Wang, Post-Doctoral (Rutgers Material Science and Engineering)
37. J. Lu, Ph. D Student (Institute for Laser Science, University of Electro Communication, Japan.Topic-Rare earth doped transparent ceramics)
38. Kailasnath, MTech Student (International School of Photonics, Cochin University of Science and Technology, India. Topic-Energy transfer in laser dye mixtures)
39. Mathew, MTech Student (International School of Photonics, Cochin University of Science and Technology, India. Topic-Energy transfer in laser dye mixtures)
40. G.C. Chenattucherry, Ph. D and MPhil Student (School of Pure and Applied Physics, Mahatma Gandhi University, India, Topic-Theoretical studies of the optical gain in dye mixtures)
41. Sabir Hussain, MPhil Student (School of Pure and Applied Physics, Mahatma Gandhi University, India, Topic-Design, development and fabrication of high temperature zone melting and refining system)
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42. Julie Joy, MS student (School of Pure and Applied Physics, Mahatma Gandhi University, India, Topic-Theoretical studies of the energy level calculations in rare earth doped glasses)

TEACHING EXPERIENCE AND EXPERTISE

In my academic career I have taught several graduate and undergraduate courses such as Engineering physics, Introductory physics, Laboratory physics, Material science, Nanotechnology, Advanced spectroscopy, Quantum electronics, Non-linear optics, Mathematical physics and, Fiber optics. In addition to teaching, I have supervised over 40 graduate and undergraduate student laboratory projects at Rutgers, UPENN, UTSA, Northwest vista college and several other universities and laboratories abroad. I also served as the Ph.D. thesis committees of several students at Rutgers and UTSA. In the undergraduate level, I have several years of teaching experience in engineering physics, physics lab courses at the UTSA college of science and Northwest vista college.
As a part of the Texas workforce commission project granted to Northwest vista college, I would be able to teach a nanotechnology course during Summer 2017. Some of the major objectives of the grant was to establish an Institute of Material Technology to train material technicians and scientists, to establish an advanced material and nanotechnology laboratory, and to engage middle and high school students as well as the public in material and nanotechnology fields. This was a great opportunity for me to teach Nanotechnology-one of the most emerging topic of future technology, to students and I was really excited to see how much they are interested in the future of Nanotechnology.

Courses Taught in the US

• PHY 1603-Algebra-based Physics I Lecture.
• PHY 1301 – General Physics I Lecture.
• PHY 1302 – General Physics II Lecture.
• PHY1402 General Physics ll Lecture and lab.
• PHY 2425 University Physics I Lecture and lab.
• PHY 2426 University Physics II Lecture.
• PHYS 1305 – Introductory Physics I Lecture.
• NANO 1301 – Introduction to Nanotechnology.
• PHY 6513-Mathematical Physics II.
• PHY 1611 -Algebra-based Physics I Lab.
• PHY 1951 -Physics for Scientists and Engineers I Lab.
• PHY 1101 – General Physics I Lab.
• PHY 1102 – General Physics II Lab.
• PHY 2126 – University Physics II Lab.
• SCIA206-Introduction to Physics.
• SCIA250-Special topics in Science.

Courses Taught in India

• Material science
• Non-linear and quantum optics
• Fiber optics
• Advanced spectroscopy

Major Industrial sponsors

Invista, American Express, Chanell, Sigma, Invitrogen, International Papers, US treasury, JDSU, Authentix

PROFESSIONAL ACTIVITIES

Membership- Sigma Xi, Optical society of America, American Ceramic Society, Material Research Society, IEEE, SPIE

Visiting faculty/scientist

1. Center for Advanced Technology (CAT), Indore (Department of Atomic Energy, India)
2. Chemistry division, Argonne National Laboratory, Chicago, USA
3. Optical Materials Division, Center of Investigations in Optics, Leon, Mexico.
4. Institute for Laser Science, University of Electro Communication, Tokyo, Japan
5. Department of Physics, Shanghai JiaoTong University, Shanghai, China.
6. Department of material science and Engineering, Rutgers University, USA.
7. Center for atomic and molecular spectroscopy, Manipal university, India (Adjunct faculty)
8. Member Board of studies-Manipal university, India.

Technical Reviewer of Journals

Nature, Advanced Materials, Optical Materials, Chemical Physics, Physics letters,Chemical Physics Letters, Acta Material, Journal of Applied Physics, Applied Physics Letters, Journal of Optical Society of America B, Material Chemistry and Physics, Powder Technology, Journal of Non Crystalline Solids, Journal of Physics and Chemistry of Solids, Journal of molecular Structure, Optics Communication, Journal of Physics Condensed Matter, Journal of Physics B. Atomic and optical Physics, J.Alloys.Compd, J.Noncryst.Solids, J.of the Am.Ceramic Soc., Journal of Physics D Applied Physics, Measurement Science and Technology, Industrial and Engineering Chemical Research, Physica Status Solidi, Material Research Bulletin, Journal of Luminescence, Surface Science, Research Letters in Materials Science, Nuclear Instruments and Methods in Physics Research A, IEEE. Journal OF Quantum Electronics, Solid state science, Opt.Engi, Optics letters, Optics express, Optical material express, Physical review, Journal of Materials Chemistry, Sensors and actuators, Science of advanced materials, J. Nanosci. Nanotech, Coordination chemical review, JACS, Chem. Materials, ACS photonics, ACS Nano, Chemical review, RSC analytical methods, RSC adv., Chem. Commun, Biomaterials, Nanotechnology, J. Nanoparticle Research.

Editorial advisory board

New Patents on Electrical Engineering, Current Physical Chemistry, The Open Optics Journal (Bentham publications)

Scientific Citations

~ 7000, H-Index-42

Collaborators

1.Prof.John Brennan`s group, Dept of Chemistry, Rutgers University-Molecular clusters
2. Prof.John Ballato, Clemson University-Ceramic lasers, composites
3. Prof.Norwood, Optical science center, University of Arizona-Composite waveguide.
4. Dr. Kurt R. Mikeska group, DuPont research lab. -Composite waveguide
5. Dr. A D`Orazio, Politechnico di bari, Italy –Waveguide modeling
6. Dr.M.G. Brick, University of Tartu, Estonia-Crystal field modeling
7. Dr.L.A. Tores, Center of Invest. In Optics, Mexico-Energy transfer modeling
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8. Prof.K.I. Ueda, University of Electro Communication, Japan-Ceramic lasers
9. Prof.A.A. Kaminskii, Russian academy of Science, Russia-Laser materials
10. Prof.C B Murray, University of Pennsylvania, USA-Nanomterials
11.Dr. Hisataka Kobayashi, Center for Cancer Research, National Cancer Institute-

Imaging

12. Paul D. Smith, National Institute of Biomedical Imaging and Bioengineering, NIH-Imaging
13.Dr. Joseph Friedberg, Thoracic Surgeon, Medical Center, University of Pennsylvania, USA-Photodynamic therapy
14. Prof.Sam Niedbala, Lehigh University-Biofunctionalization, Imaging
15. Dr. Jarod E. Finlay, School of Medicine, University of Pennsylvania- Bio-photonics
16. Dr. Erkinay Abliza, George Washington University, Dept. of Biomedical Engineering, Washington D.C. – Bio-photonics.
17. Dr. Ronald W. Waynantd, U.S. Food and Drug Administration, MD- Bio-photonics
18. Dr. Darrell B. Tata, U.S. Food and Drug Administration, MD- Bio-photonics
19.Dr. Nobuyuki Kosaka, Molecular Imaging Program, Center for Cancer Research, National Cancer Institute, NIH, MD- Imaging
20.Dr. Mikako Ogawa, Molecular Imaging Program, Center for Cancer Research, National Cancer Institute, NIH, MD- Imaging
21.Peter L. Choyke, Molecular Imaging Program, Center for Cancer Research, National Cancer Institute, NIH, MD- Imaging
22.Prof.Peter J. Hornsby, Department of Physiology and Barshop Institute, University of Texas Health Science Center at San Antonio, San Antonio, TX 78245, USA-Imaging and

Toxicity studies

23.Dr. Ai-Ling Lin, Research Imaging Institute, Barshop Institute and Department of Cellular & Structural Biology, University of Texas Health Science Center, San Antonio, TX -Magnetic resonance imaging
24. Dr. Uma Ladiwala- UM-DAE Centre for Excellence in Basic Sciences, Health Centre Bldg, University of Mumbai, India-Imaging and Toxicity studies.
25. Dr C. Santhosh, Center for atomic and molecular spectroscopy, Manipal University, India-Bio-photonics, Plasma spectroscopy.
26.Prof.C.K.Jayasankar, Department of Physics, S.V. University, Thirupathi, India-Optical materials.
27.Dr. Karen Mortirosyan, Department of Physics, University of Texas at Rio Grande Valley, USA-Magnetic materials.