UTSA Laser Lab    
 
   
 

Publications

  
         
 

2008

    ·        Gruber, J. B., K. L. Nash*, R..  M. Yow*, D.  K. Sardar, U. V. Valiev, A. A. Uzokov, and G. W. Burdick,           “Spectroscopic and Magnetic Susceptibility Analyses of the 7FJ and 5D4 Multiplet Manifolds of Tb3+(4f8) in TbAlO3,” Journal Luminescence, Vol. 128, 7- (2008)

  • Sardar, D. K., R. M. Yow*, and J. B. Gruber, “Optical Absorption Intensities of Trivalent Erbium in a 2-Hydroxyethyl Methacrylate (HEMA) Polymeric Host,” Optical Materials, Vol. 30, 987-992 (2008).

  • Sardar, D. K., K. L. Nash*, R.M. Yow*, J. B. Gruber, A. Sayka*, “Rare-Earth Doped Nanocrystals for Biosensing and Imaging,” Biophotonics International, Vol. 15, 45-48 (2008).

  • Sardar, D. K., S. R. Chandrasekharan*, K. L. Nash*, J. B. Gruber, A. Burger, and U. N. Roy, “Absorption Intensities Analysis and Crystal Field Modeling of Ho3+:KPb2Cl5,” Journal of Applied Physics, (in press) (2008).

  • Gruber, J. B., D. K. Sardar, K. L. Nash*, U. V. Valiev, V. Y. Sokolov, and S. A. Rakhimov, “Non-equilibrium population distribution in excited electronic states of Tb3+ in Y3Al5O12,” Journal of Applied Physics, (in press) (2008).

  • Sardar, D. K., S. R. Chandrasekharan*, K. L. Nash*, and J. B. Gruber, “Optical Intensity Analyses of Er3+:YAlO3,” Journal of Applied Physics, (accepted) (2008).

 

2007

   

·        Sardar, D.K., A. Sayka*, and R.M. Yow*, "Characterization of Optical Properties of Polyimide Precursors," Semiconductor Manufacturing, Vol. 8, Issue 1; Web Exclusive: (2007). [PDF]

 

·       J.B. Gruber, D.K. Sardar, R.M. Yow, U.V.Valiev, A.K. Mukhamadiev, V.Y. Sokolov, I. Amin, K. Lenguel, I.S. Kachur, V.G. Piryatinska, and B. Zandi, “Analysis of the Optical and Magneto-optical Spectra of Tb3Ga5O12,” Journal of Applied Physics, Vol. 101, 023108: 1-14 (2007). [PDF]

 

 ·       Valiev, U.V., J.B. Gruber, D.K. Sardar, B. Zandi, I.S. Kachur, A.K. Mukhammadiev, V.G. Piryatinskaya, V.Y. Sokolov, and I.S. Edel’man, “Zeeman Effect and Stark Splitting of the Electronic States of the Rare-Earth Ion in the Paramagnetic Garnets Tb3Ga5O12 and Tb3Al5O12,” Physics of the Solid State, Vol. 49, 91-98 (2006). [PDF]

 

 ·       Sardar, D.K., G.Y. Swanland*, R.M. Yow*, R.J. Thomas, and A.T.C. Tsin, “Optical Properties of Ocular Tissues in the Near Infrared Region,” Lasers in Medical Science, Vol. 22, 46 - 52 (2007). [PDF]

 

 ·       Gagik, G.D., V.G. Babajanyan, E.P. Kokanyan, R.B. Kostanyan, J.B. Gruber, .V.Valiev, and D.K. Sardar, “Spectroscopic Properties of the NaBi(WO4)2:Yb3+  Crystal,” Optical Materials, Vol. 29, 1107 - 1110 (2007). [PDF]

 

 ·       Valiev, U.V., J.B. Gruber, D.K. Sardar, B. Zandi, I.S. Kachur, A.K. Mukhammadiev, V.G. Piryatinskaya, V.Y. Sokolov, and I.S. Edel’man, “Zeeman Effect and Stark Splitting of the Electronic States of the Rare-Earth Ion in the Paramagnetic Garnets Tb3Ga5O12 and Tb3Al5O12,” Physics of the Solid State, Vol. 49, 91-98 (2007). [PDF]

 

 ·      Gruber, J.K., D.K. Sardar, R.M. Yow*, U.V.Valiev, A.K. Mukhamadiev, V.Y. Sokolov, I. Amin, K. Lenguel, I.S. Kachur, V.G. Piryatinska, and B. Zandi, “Analysis of the Optical and Magneto-Optical Spectra of Tb3Ga5O12,” Journal of Applied Physics, Vol. 101, 023108: 1-14 (2007). [PDF]

 

 ·      Sardar, D.K., A. Sayka*, and R.M. Yow*, "Characterization of Optical Properties of Polyimide Precursors," Semiconductor Manufacturing, Vol. 8, 1-8 (2007). [PDF]

 

 ·      Valiev, U.V., J.B. Gruber, D.K. Sardar, A.K. Mukhammadiev, Sh.A. Rakhimov, V.Yu. Sokolov, “Features of Magneto-optical Spectra in Tb3Ga5O12,” Optics and Spectroscopy, Vol. 102, 805-812 (2007). [PDF]

 

 ·      Gruber, J.B., D.K. Sardar, K.L. Nash*, R.M. Yow*, W. Gorski, and M. Zhang, “Spectral Analysis of Synthesized Nanocrystalline Aggregates of Er3+:Y2O3,” Journal of Applied Physics (accepted for publication) (2007). [PDF]

 

 ·      Sardar, D.K., K.L. Nash*, R.M. Yow*, and J.B. Gruber, “Optical Absorption Intensity Analysis and Emission Cross Sections for the Intermanifold Transition of Er3+(4f3) in Nanocrystalline Aggregates of Er3+:Y2O3,” Journal of Applied Physics, (accepted for publication) (2007). [PDF]

 

 

2006

  • Sardar, D.K., Douglas Dee*, K.L. Nash*, R.M. Yow*, and J.B. Gruber, “Optical Absorption Intensity Analysis and Emission Cross Sections for the Intermanifold and the Inter-Stark Transitions of Nd3+(4f3) in Polycrystalline Ceramic Y2O3,” Journal of Applied Physics, Vol. 100, 123106: 1-7 (2006).  [PDF]

  • Sardar, D.K., Douglas Dee*, K.L. Nash*, R.M. Yow*, and J.B. Gruber, “Optical Absorption Intensity Analysis and Emission Cross Sections for the Intermanifold and the Inter-Stark Transitions of Nd3+(4f3) in Polycrystalline Ceramic Y2O3,” Journal of Applied Physics, Vol. 100, 123106: 1-7 (2006).  [PDF]

 

·        Gruber, J.B., T. Allik, D.K. Sardar, R.M. Yow, M. Scipsick, and B. Wechsler, “Crystal Growth and Spectroscopic Characterization of Yb3+:LiTaO3,” Journal of Luminescence, Vol. 117, 233 - 238 (2006).  [PDF]

 

·       Sardar, D.K., R.M. Yow*, J.B. Gruber, T.H. Allik, and B. Zandi, “Stark Components of Lower-lying Manifolds and Emission Cross Sections of Intermanifold and Inter-Stark Transitions of Nd3+(4f3) in Polycrystalline Ceramic Garnet Y3Al5O12,” Journal of Luminescence, Vol. 116, 145-150 (2006). [PDF]

 

·        J.B. Gruber, D.K. Sardar, D.M. Johnson, R.M. Yow*, C.H. Coeckelenberg*, A. Nijjar*, “Ligand-field Splitting of the Energy Levels of Nd3+(4f3) in 2-Hydroxethyl Methacrylate Polymer (HEMA),” Polymer International, Vol. 55, 1007 - 1012 (2006). [PDF]

 

·        J.B. Gruber, C.C. Russell III, A. Nijjar, R.M. Yow, B. Zandi, D.K. Sardar, and A. Burger, “Modeling the Crystal-Field Splitting of Energy Levels of Er3+(4f11) in Charge-comensated Sites of KPb2Cl5,” Journal of Applied Physics, Vol. 100, 043108: 1-6 (2006). [PDF]

 

·       Sardar, D.K., R.M. Yow*, G.Y. Swanland, and R.J. Thomas, “Near Infrared Characterization of Bovine Ocular Tissues,” Lasers in Medical Science, Vol. Springer-Verlag, 1-7 (2006). [PDF]

  •  Gagik, G.D., V.G. Babajanyan, E.P. Kokanyan, R.B. Kostanyan, J.K. Gruber, U.V. Valiev, and D.K. Sardar, “Spectroscopic Properties of the NaBi(WO4)2:Yb3+  Crystal,” Optical Materials, Web: wwww.science.sciencedirect.com (2006). [PDF]

·        Sardar, D.K., K.L. Nash*, R.M. Yow*, and Gruber, J.B., “Absorption Intensities and Emission Cross Sections of Tb3+(4f8) in TbAlO3,” Journal of Applied Physics, Journal of Applied Physics, Vol. 100, 083108: 1-5 (2006). [PDF]

     

·       Sardar, D.K., R. Nakade*, A. Sayka*, and R.M. Yow*, "Efficient Cleaning of Silicon Wafers using Ultrasonic Technology," Controlled Environments - Contamination Control for Life Sciences and Microelectronics, Web Exclusive: 1-8 (2006). [PDF]

2005

    

·        Sardar, D.K., R.M. Yow*, J.B. Gruber, T.H. Allik, and B. Zandi, “Stark Components of Lower-lying Manifolds and Emission Cross Sections of Intermanifold and Inter-Stark Transitions of Nd3+(4f3) in Polycrystalline Ceramic Garnet Y3Al5O12,” Journal of Luminescence, Vol. 116, 145-150 (2005).  [PDF]

 

·        Sardar, D.K., R. M. Yow*, A.T.C. Tsin, and R. Sardar, “Optical Scattering, Absorption, Polarization Healthy and Neovascularized Human Retinal Tissues,” Journal of Biomedical Optics, (in press) (2005).  [PDF]

 

·        Sardar, D.K., F.S. Salinas*, R.M. Yow*, and A.T. Tsin, “Polarization Characterization of Neovascularized Ocular Tissues,” Biophysical Journal, Vol. 89, 1-3 (2005).  [PDF]

·        Sardar, D.K., C. Coeckelenberg*, R.M. Yow*, J.B. Gruber, and T.H. Allik,  “Optical Absorption Intensities and Intermanifold Emission Cross Sections of Trivalent Erbium Ions in Calcium Fluorophosphate,” Journal of Applied Physics, Vol. 98, 033535(1)- 033535(6) (2005).  [PDF] 

 

·        Gruber, J.B., T. Allik, D.K. Sardar, M. Scipsick, and B. Wechsler, “Crystal Growth and Spectroscopic Characterization of Yb3+:LiTaO3,” Journal of Luminescence, (submitted) (2005).  [PDF]

 

·        Bahram, Z., J.B. Gruber, D.K. Sardar, and T.H. Allik, “Modeling of Er in Ceramic YAG and Comparison with Single-Crystal YAG,” Laser Source and System Technology for Defence and Security, edited by G.L. Wood, Proceedings of SPIE – The International Society of Optical Engineering, Vol. 5792, 26 - 33 (2005).  [PDF]

 

  • Sardar, D.K., R.M. Yow*, A. Sayka*, C. Coeckelenberg*, and Gruber, J.B., “Absorption Intensity Analysis of Nd3+(4f3) Transitions in HEMA,” Polymer International Vol. 54, 412-417 (2005). [PDF]

·        Gruber, J.B., A.S. Nijjar*, D.K. Sardar, R.M. Yow*, C.C. Russell III*, B. Zandi, and T.H. Allik, “Spectral Analysis and Energy-level Structure of Er3+(4f11) in Polycrystalline Ceramic Garnet Y3Al5O12,” Journal of Applied Physics, Vol. 97, 063519(1)- 063519(8) (2005).  [PDF]

 

·        Sardar, D.K., C.C. Russell III*, Gruber, J.B., and T.H. Allik,  “Absorption Intensities and Emission Cross Sections of Principal Intermanifold and Inter-Stark Transitions of Er3+ (4f11) in Polycrystalline Ceramic Garnet Y3Al5O12,” Journal of Applied Physics, Vol. 97, 123501:1-6 (2005).  [PDF]

 

2004

 

·        Sardar, D.K., F.S. Salinas*, J. C. Perez*, and A.T.C. Tsin, “Optical Characterization of Bovine Retinal Tissues,” Journal of Biomedical Optics, Vol. 9, 624-631 (2004).  [PDF]

 

·        Sardar, D.K., W.M. Bradley*, R.M. Yow*, J.B. Gruber, and B. Zandi, “Optical Transitions and Absorption Intensities of Dy3+ (4f9) in YSGG laser Host,” Journal of Luminescence, Vol. 106, 195-203 (2004).  [PDF]

 

·        Sardar, D.K., C.C. Russell III*, R.M. Yow*, J.B. Gruber, Zandi, and E.P. Kokanyan, “Spectroscopic Analysis of the Er3+ (4f11) Absorption Intensities in NaBi(WO4)2,” Journal of Applied Physics, Vol. 95, 1180-1184 (2004).  [PDF]

 

·        Sardar, D.K. and C.C. Russell III*, “Optical Transitions, Absorption Intensities, and Inter-manifold Emission Cross-sections of Pr3+ (4f2) in Ca5(PO4)3F Caser Host,” Journal of Applied Physics, Vol. 95, 5334-5339 (2004).  [PDF]

 

·        Gruber, J.B., D.K. Sardar, B. Zandi, L.D. Merkle, and E.P. Kokanyan,, “Modeling the Crystal-Field Splitting  of the Energy Levels of Er3+ in Charge-Compensated Sites in Lithium Niobate” Physical Review B, Vol. 69, 195103(1)- 195103(10) (2004).  [PDF]

 

·        Sardar, D.K., A. Sayka*, and R.M. Yow*, "Optical Characterization of Positive Deep UV Photoresist," Semiconductor International, Web Exclusive, Article ID:CA415043,1-12 (2004).  [PDF]

 

·        Gruber, J.B., D.K. Sardar, C.C. Russell III*, R.M. Yow*, and T.H. Allik, “Energy-Level Structure and Spectral Analysis of Nd3+(4f3) in Polycrystalline ceramic Garnet Y3Al5O12,” Journal of Applied Physics, Vol. 96, 3050-3056 (2004).  [PDF]

 

  • Merkle, L.D., M. Dubinsky, B. Zandi, J.B. Gruber, D.K. Sardar, and E.P. Kokanyan, “Spectroscopy of Potential Laser Material Yb3+ in NaBi(WO4)2,” Journal of Optical Materials, Vol. 27, 343-349 (2004).  [PDF]   

·        Gruber, J.B., D.K. Sardar, T.H. Allik, and B. Zandi, “Spectra and Energy Levels of Nd3+(4f3) in Stoichiometric NdP5O14,” Journal of Optical Materials, Vol. 27, 351-358 (2004).  [PDF]

 

  • F.S. Salinas*, D.K. Sardar, A.T. Tsin, and J.C. Perez*, “Optical Characterization of Healthy and Neo-vascularized Human Ocular Tissues,” Proceedings of SPIE – The International Society of Optical Engineering, Progrss in Biomedical Optics and Imaging, Fabrice Manns, Per G. Soderberg, and Arthur Ho, Eds., Vol. 5314, 15 - 23 (2004).  [PDF] 

·        Sardar, D. K. and R.L. Yow*, “Mueller Matrix of Backscattered Light of a Chicken Embryo,” Proceedings of SPIE – The International Society of Optical Engineering, Progrss in Biomedical Optics and Imaging, Fabrice Manns, Per G. Soderberg, and Arthur Ho, Eds., Vol. 5314, 10 - 14 (2004).  [PDF]

 

2003

 

·        Sardar, D.K., J.B. Gruber, B. Zandi, J.A. Hutchinson, and C.W. Trussell, “Judd-Ofelt Analysis of the Er3+ (4f11) absorption intensities in Phosphate Glass: Er3+, Yb3+,” Journal of Applied Physics, Vol. 93, 2041-2046 (2003).  [PDF]

 

·        Sardar, D.K., W.M. Bradley*, J. C. Perez*, J.B. Gruber, B. Zandi, J.A. Hutchinson, C.W. Trussell, and M.R. Kokta, “Judd-Ofelt Analysis of the Er3+ (4f11) Absorption Intensities in Er3+-Doped Garnets,” Journal of Applied Physics, Vol. 93, 2602-2607 (2003).  [PDF]

 

·        Gruber, J.B., D.K. Sardar, B. Zandi, J.A. Hutchinson, and C.W. Trussell, “Spectra and Energy Levels of Er3+ (4f11) in Gd­3Ga­5O12,” Journal of Applied Physics, Vol. 93, 3137-3140 (2003).  [PDF]

 

·        Gruber, J.B., D.K. Sardar, B. Zandi, T.A. Reynolds, T. Alekel, and D.A. Keszler, “Spectra and Energy Levels of Nd3+ in LaSc­3(BO3)4,” Journal of Applied Physics, Vol. 93, 3345-3351 (2003).  [PDF]

 

·        Gruber, J.B., D.K. Sardar, B. Zandi, J.A. Hutchinson, and C.W. Trussell, “Modeling the Absorption Spectra of Er3+ and Yb3+ in Phosphate Glass,” Journal of Applied Physics, Vol. 94, 4835-4840 (2003).  [PDF]

 

·        Gruber, J.B., D.K. Sardar, C.C. Russell III*, R.M. Yow, B. Zandi, and E.P. Kokanyan, “Energy Levels of Er3+ (4f11)  in NaBi(WO4)2,” Journal of Applied Physics, Vol. 94, 7128-7135 (2003).  [PDF]

 

·        Sardar, D.K., A.T.C. Tsin, F. S. Salinas*, and J. J. Perez*, “Optical Polarization of Neovascularized Human Ocular Tissues,” Proceedings of SPIE – The International Society of Optical Engineering, Fabrice Manns, Per G. Soderberg, and Arthur Ho, Eds., Vol. 4951, 1 - 8 (2003).  [PDF]

 

2002

 

·        Sardar, D.K. and F. Castano*, “Characterization of Spectroscopic and Laser Properties of Pr3+ in Sr­5(PO4)3 Crystal,” Journal of Applied Physics, Vol. 91, 911-915 (2002).  [PDF]

 

·        Sardar, D.K., J.B. Gruber, B. Zandi, M. Ferry, and M.R. Kokta, “Spectroscopic Properties of Co2+ in Related Spinels,” Journal of Applied Physics, Vol. 91, 4846-4852 (2002).  [PDF]

 

·        Sardar, D.K., A. Sayka*, W.M. Bradley*, J. C. Perez*, "Optical Characterization of i-Line Photoresist," Semiconductor International, Vol. 25, Web Exclusive :1-8 (2002).  [PDF]

 

·        Sardar, D.K., and F.S. Salinas*, “Optical Properties of a Laser Dye in a Solid State Polymeric Host,” Journal of Applied Physics, Vol. 91, 9598-9602 (2002).  [PDF]

 

·        Sardar, D.K., J.A. French*, F. Castano*, and A. Sayka*,  “Temperature Effects on 1.0 and 1.3 mm Emission Lines of Nd3+ in LaSc­3(BO3)4 Crystal Host,” Journal of Applied Physics, Vol. 91, 9629-9634 (2002).  [PDF]

 

2001

 

  • Sardar, D.K., R.M. Yow*, and A. Sayka*, "Crystal-field Splittings and Phonon Effects on a Sharp Emission Line within a Manifold of Pr3+ in Ca5(PO4)3F Laser Host," Journal of Applied Physics, Vol. 223, 691-700 (2001).  [PDF]

·        Sardar, D.K., M.L. Mayo*, and R.D. Glickman, "Optical Characterization of Melanin," Journal of Biomedical Optics, Vol. 6, 404-411 (2001).  [PDF]

 

  • Sardar, D.K., R.M. Yow*, A. Sayka*, and M.L. Mayo*, "Optical Characterization of Positive Photoresist," Semiconductor International, Vol. 24, 163-174 (2001).  [PDF]

·        Gruber, J.B., T.A. Reynolds, T. Alekel, D.K. Sardar, B. Zandi, and D. Keszler, "Spectra and Energy Levels of Co2+ in Zinc Metaborate," Physical Review B, Vol. 64, 045111:1-7 (2001).  [PDF]

 

·        Sardar, D.K., M.L. Mayo*, and R.M. Yow*, “Optical Characterization of a Laser Dye in a Solid State Host,” Journal of Applied Physics, Vol. 89, 7739-7744 (2001).  [PDF]

 

·        Sardar, D.K. and R.M. Yow*, and F.S. Salinas*, "Stark Components of Lower-lying manifolds and Phonon Effects on Sharp Spectral Lines for Inter-Stark Transitions of Nd3+ in LLGG Crystal Host," Journal of Optical Materials, Vol. 18, 301-308 (2001).  [PDF]

 

·        Gruber, J.B., D.K. Sardar, L.D. Merkle, B. Zandi, and R. Jarman, and J.A. Hutchinson, “Spectroscopic Properties of CaF2:U4+ as a Saturable Absorber,” Journal of Applied Physics, Vol. 90, 3965-3972 (2001).  [PDF]

 

·        Sardar, D.K., F. Castano*, J.A. French*, J.B. Gruber, T.A. Reynolds, T. Alekel, D.A. Keszler, and B.L. Clark, “Spectroscopic and Laser Properties of Nd3+ in LaSc­3(BO3)4 Host,” Journal of Applied Physics, Vol. 90, 4997-5001 (2001).  [PDF

 

·        Sardar, D.K., F. Castano*, J.A. French*, and F.S. Salinas*, "Characterization of Spectroscopic Properties of Nd3+ in LaSc3(BO3)4 (LSB)," Proceedings of the International Conference on LASERS 2001, 55-58 (2001).  [PDF]

 

·        Sardar, D.K., J.A. French*, F. Castano*, and F.S. Salinas*, "Effects of Temperature on Sharp Spectral Lines of Nd3+ in LaSc3(BO3)4," Proceedings of the International Conference on LASERS 2001, 59-64 (2001).  [PDF]

 

2000

 

  •   Glickman, R.D., J.M. Gallas, S.L. Jacques, B.A. Rockwell, and D.K. Sardar, "Physical and Photochemical Properties of Ocular Melanin," Proceedings of SPIE – The International Society of Optical Engineering, Valery V. Tuchin, Ed., Vol. 4241, 112 - 126 (2001).  [PDF]  

·        Sardar, D.K. and R.M. Yow*, "Stark Components of 4F3/2, 4I9/2 and 4I11/2 Manifold Energy Levels and Effects of Temperature on the Laser Transitions of Nd3+ in YVO4," Journal of Optical Materials, Vol. 14, 5-11 (2000).  [PDF]

 

·        Sardar, D.K., F.S. Salinas*, and R.M. Yow*, "Stark Components of Lower-lying Manifolds and Temperature Dependencies of Linewidth and Line Shift of a Strong Spectral Transition of Pr3+ in Sr5(PO4)3F," Journal of Applied Physics, Vol. 88, 4688-4692 (2000).  [PDF]

 

1999

 

·        Sardar, D.K. and R.M. Yow*, "Inter-Stark energy levels and effects of temperature on sharp emission lines of Nd3+ in LiYF4," Physica Status Solidi, Vol. 173, 521-534 (1999).  [PDF]

 

·        Sardar, D.K. and S.C. Stubblefield*, "Phonon Effects on Sharp Spectral Lines for Inter-Stark Transitions of Trivalent Neodymium Ions in Strontium Fluorovanadate," Physical Review B, Vol. 60, 14724-14731 (1999).  [PDF]

 

1998

 

·        Sardar, D.K. and L.B. Levy*, "Optical Properties of Whole Blood," Lasers in Medical Sciences, Vol. 13, 106-111 (1998).  [PDF]

 

·        Sardar, D.K. and S.C. Stubblefield*, "Temperature Dependencies of Linewidths, Positions and Line Shifts of Spectral Transitions of Trivalent Neodymium Ions in Barium Magnesium Yttrium Germanate Laser Host," Journal of Applied Physics, Vol. 83, 1195-1199 (1998).  [PDF]

 

·        Sardar, D.K. and R.M. Yow*, "Optical characterization of inter-Stark energy levels and effects of temperature on sharp emission lines of Nd3+ in CaZn2Y2Ge3O12," Journal of Optical Materials, Vol. 10, 191-199 (1998).  [PDF]

 

1997

 

·