Publications

  1. R. He, P. J. A. Sazio, N. Healy, A. C. Peacock, M. Krishnamurthi, V. Gopalan, J. V. Badding, “Integration of GHz Bandwidth Semiconductor Devices inside Microstructured Optical Fibers,” Nature Photonics, 6, 174-179 2012.article
  2. Neil F. Baril, Rongrui He, Todd D. Day, Justin R. Sparks, Banafsheh Keshavarzi, Mahesh Krishnamurthi, Ali Borhan, V. Gopalan, Anna C. Peacock, Noel Healy, Pier J.A. Sazio, John V. Badding, “Confined High Pressure Chemical Deposition of Amorphous Hydrogenated Silicon,” J. Am. Chem. Soc. 134, 19-22 2012. article
  3. P. Wu , X. Ma, Y. Li, V. Gopalan, L-Q. Chen, “Dipole spring ferroelectrics in superlattice SrTiO3/BaTiO3 thin films exhibiting constricted hysteresis loops,” Appl. Phys. Lett. 100, 092905 2012. article
  4. M. Krishnamurthi, J. Sparks, R. He, N. Baril, P. A. Sazio, J. V. Badding, V. Gopalan, “Array of tapered semiconductor waveguides in a fiber for infrared image transfer and magnification,” Optics Express, 20, 4168-4175 2012. article
  5. Yijia Gu, Karin Rabe, Eric Bousquet, Venkatraman Gopalan, and Long-Qing Chen, “A Phenomenological Thermodynamic Potential for CaTiO3 Single Crystal,” Phys. Rev. B, 85, 064117 2012. article
  6. A. Morozovska, E. A. Eliseev, M. D. Glinchuk, V. Gopalan, “Interfacial Polarization and pyroelectricity in antiferrodistortive structures induced by a flexoelectric effect and rotostriction,” Phys. Rev. B, 85, 094107 2012. article
  7. A. N. Morozovska, E. A. Eliseev, S. V. Kalinin, L-Q. Chen, V. Gopalan, “Surface polar states and pyroelectricity in ferroelastics induced by flexo-roto field,” accepted, Appl. Phys. Lett. (2012).
  8. M. B. Holcomb, S. Polisetty, A. Fraile-Rodriguez, V. Gopalan, R. Ramesh, “Investigating electric field control of magnetism,” accepted, review article International J. Modern Physics B 2012.
  9. V. Gopalan and D. Litvin, Rotation-reversal symmetries in crystals and handed structures,Nature Materials, 3 April 2011. article
  10. V. Gopalan and D. Litvin, Supplementary Information: Rotation-reversal symmetries in crystals and handed structures,Nature Materials, 3 April 2011. PDF
  11. S. Harrington, J. Zhai, S. A. Denev, V. Gopalan, H. Wang, Z. Bi, S. A. T. Redfern, S-H. Baek, C.W. Bark, C-B. Eom, Q. X. Jia, M. E. Vickers, J. L. MacManus-Driscoll, “Thick lead-free ferroelectric films with high Curie temperatures through nanocomposite-induced strain,” Nature Nanotechnology 6, 491-495 2011. article
  12. S. A. Denev, T. T. A. Lummen, E. Vlahos, V. Gopalan, “Probing Ferroelectrics using Optical Second Harmonic Generation,” J. Amer. Cer. Soc. 94[9], 2699-2727 2011. article
  13. R. K. Behera, C-W. Lee, D. Lee, A. N. Morozovska, S. B. Sinnott, A. Asthagiri, V. Gopalan, and S. R. Phillpot, “ Structure and energetics of 180° domain walls in PbTiO3 by density functional theory,” J. Phys. Condensed Matter, 23, 175902-1/12 2011. article
  14. E. Eliseev, A. M. Morozovska, S. V. Svechnikov, V. Gopalan, V. Ya. Shur, “ Static conductivity of charged domain walls in uniaxial ferroelectric semiconductors,” Phys. Rev. B 83, 235313-1/8 2011. article
  15. J. R. Sparks, R. He, Noel Healy, M. Krishnamurthi, A. C. Peacock, P. J.A. Sazio, V. Gopalan, and J. V. Badding, “Zinc Selenide Optical Fibers” Advanced Materials, 23, 1647-1651 2011. article
  16. H. Li, P. Edwards, Z. Zhang, Y. Xu, V. Gopalan, Z. Liu, “Characterization of the second-harmonic response of second-order nonlinear probes,” ,” J. Opt. Soc. Am. B, 28, 2844-2847 2011. article
  17. H. Xu, D. W. Lee, S. B. Sinnott, V. Gopalan, V. Dierolf and S. R. Phillpot, Interactions of Defects and Domain Walls in LiNbO3 – Insights from Simulation, IOP Conf. Ser.: Mater. Sci. Eng. 15 012003 (2010). PDF
  18. C. Yang, K. Shi, H. Li, Q. Xu, V. Gopalan, Z. Liu, “Chromatic second harmonic imaging,” Optics Express, Vol. 18, Issue 23, pp. 23837-23843 (2010). article
  19. P. Mehta, M. Krishnamurthi, N. Healy, N. F. Baril, J. Sparks, P. J. A. Sazio, V. Gopalan, J. V. Badding, A. C. Peacock, “Mid-infrared transmission properties of amorphous germanium optical fibers,” Applied Physics Lett. 97, 071117 (2010). article
  20. H. Xu (徐海譞), A. Chernatynskiy, D. Lee (이동화), S. B. Sinnott, V. Gopalan, V. Dierolf, and S. R. Phillpot, “Stability and charge transfer levels of extrinsic defects in LiNbO3,” Phys. Rev. B 82, 184109 (2010). PDF
  21. A.N. Morozovska, E.A. Eliseev, JianJun Wang, G.S. Svechnikov, Yu. M. Vysochanskii, V. Gopalan, and Long-Qing Chen, “Phase diagram and domain splitting in thin ferroelectric films with incommensurate phase,” Phys. Rev. B, 81, 195437, (2010). article
  22. A. Vasudevarao, A. N. Morozovska, I. Grinberg, S. Bhattacharya, Y. Li, S. Jesse, P. Wu, K. Seal, S. Choudhury, E.A. Eliseev, S. Svechnikov, D. Lee, S. Phillpot, L.Q. Chen, A. M. Rappe, V. Gopalan and S.V. Kalinin, “Correlated polarization switching in the proximity of a 180° domain wall,” Phys. Rev. B. 82, 024111 (2010). article
  23. P. Chen, N. J. Podraza, X. S. Xu, A. Melville, E. Vlahos, V. Gopalan, R. Ramesh, D. G. Schlom, and J. L. Musfeldt, “Optical Properties of quasi-tetragonal BiFeO3 thin films,” Appl. Phys. Lett. 96, 131907 (2010). article
  24. N. Yennawar, S. Denev, V. Gopalan, H. Yennawar, “Laser improved protein crystallization screening,” Acta Crstallographica F, 66, 969-972 (2010). article
  25. G. Sheng, Y. L. Li, J. X. Zhang, S. Choudhury, Q. X. Jia, V. Gopalan, D. G. Schlom, Z. K. Liu, L. Q. Chen, “Phase-field simulations of phase transitions and domain stabilities in biaxially strained (001) SrTiO3 epitaxial thin films,” J. Appl. Phys. 108, 084113-1/6(2010).article
  26. Donghwa Lee (이동화)1, Haixuan Xu (徐海譞)1, Venkatraman Gopalan2, Volkmar Dierolf, V. Gopalan and Simon R. Phillpot, “Structure and Energetics of ferroelectric domain walls in LiNbO3 from atomic-level simulation,” Phys. Rev. B. 82, 014104-1/13, (2010).article
  27. J. H. Lee, L. Fang, E. Vlahos, X. Ke, Y. W. Jung, L. Fitting Kourkoutis, J.W. Kim, P. Ryan, T. Heeg, M. Roeckerath, V. Goian, M. Bernhagen, R. Uecker, P. C. Hammel, K. M. Rabe, S. Kamba, J. Schubert, J. W. Freeland, D. A. Muller, C. J. Fennie, P. Schiffer, V. Gopalan, E. Johnston-Halperin & D. G. Schlom, “A strong ferroelectric ferromagnet created by means of spin–lattice coupling,” Nature 466, 954 (2010). article
  28. I. A. Temnykh, N. F. Baril, Z. Liu, J. V. Badding, V. Gopalan, “Optical multistability in a silicon-core silica-cladding fiber,” Optics Express, 18, 5305-5313 (2010).article
  29. A. Kumar, R. Zeches, S. Denev, N. Podraza, A. Melville, D. G. Schlom, R. Ramesh, V. Gopalan, “Probing mixed tetragonal/rhombohedral-like monoclinic phases in strained bismuth ferrite films by optical second harmonic generation,” Appl. Phys. Lett. 97, 112903 (2010). article
  30. G. Sheng, Y. L. Li, J. X. Zhang, S. Choudhury, Q. X. Jia,  V. Gopalan,D. G. Schlom, Z. K. Liu and L. Q. Chen, “A modified Landau-Devonshire thermodynamic potential for strontium titanate,” Appl. Phys. Lett. 96, 232902(2010). article
  31. X.S. Xu, J. F. Ihlefeld, J. H. Lee, O.K. Ezekoye, E. Vlahos, R. Ramesh, V. Gopalan, X.Q. Pan, D. G. Schlom, and J.L. Musfeldt, “Tunable band gap in Bi(Fe1−xMnx)O3 films,” Appl. Phys. Lett. 96, 192901 (2010). article
  32. H. W. Jang, A. Kumar, S. Denev, M. D. Biegalski, P. Maksymovych, C. T. Nelson, C. M. Folkman, S. H. Baek, N. Balke, D.A. Tenne, D. G. Schlom, L. Q. Chen, X. Q. Pan, S. V. Kalinin, V. Gopalan, and C. B. Eom, “Ferroelectricity in Strain-Free SrTiO3 Thin Films,” Phys. Rev. Lett. 104, 197601(2010). article
  33. N. F. Baril, B. Keshavarzi, J. R. Sparks, Mahesh Krishnamurthi, I. Temnykh, P.J.A. Sazio, Ali Borhan, V. Gopalan, and J. V. Badding, “High Pressure chemical deposition for void free filling of extreme aspect ratio templates,” Advanced Materials, 22, 4605-4611(2010). article
  34. H. Xu, D. Lee, J. He, S. B. Sinnott, V. Dierolf, V. Gopalan, S. R. Phillpot, “ Structure and diffusion of intrinsic defect complexes in LiNbO3 from density functional theory calculations,” Journal of physics, Condensed Matter 22, 135002-1/7 (2010). PDF
  35. P. Chen, N. J. Podraza, X. S. Xu, A. Melville, E. Vlahos, V. Gopalan, R. Ramesh, D. G. Schlom, and J. L. Musfeldt, “Optical properties of quasi-tetragonal BiFeO3 thin films,” Appl. Phys. Lett. 96, 131907-1/4(2010).article
  36. E. R. Kupp, G. L. Messing, J. M. Anderson, V. Gopalan, J. Q. Dumm, C. Kraisinger, N. Ter-Gabrielyan, L. D. Merkle, M. Dubinskii, V. K. Castillo-Simonaitis, G. J. Quarles, “Co-Casting and Optical Characteristics of Transparent Segmented Composite Er:YAG Laser Ceramics,” J. Materials Research 25, 476-483 (2010).article
  37. N. Baril, B. Keshavarzi, J. Sparks, M. Krishnamurthi, I. Temnykh, P. Sazio, A. Borhan, V. Gopalan and J. Badding, “Supersonic chemical deposition for void free filling of extreme aspect ratio templates,” submitted to Advanced Materials, (2009). PDF
  38. A. Morozovska, E. Eliseev, Y. Li , S. Svechnikov, P. Maksymovych, V. Gopalan, L-Q. Chen and S. Kalinin, “Thermodynamics of nanodomain formation and breakdown in Scanning Probe Microscopy: Landau-Ginzburg-Devonshire approach,” accepted, Phys. Rev. B (2009). PDF
  39. M. Krishnamurthi, P. Li, A. Singh, J. Thomas, T. Lehecka, Z. Liu and V. Gopalan, “Electro-Optic Laser Beam Shaping by Patterned Ferroelectric domains,” Appl. Phys. Lett., 95, 202902 (2009). PDF
  40. N. Baril, M. Krishnamurthi, V. Gopalan and J. Badding, “Low optical loss, high carrier mobility polycrystalline silicon core waveguides inside an optical fiber,” submitted Appl. Phys. Lett., (2009). PDF
  41. R. Zeches, M. Rossell, J. Zhang, A. Hatt, C. Yang, A. Kumar, A. Melville, J. Ihlefeld, R. Erni, C. Ederer, V. Gopalan, D. Schlom, N. Spaldin, L. Martin and R. Ramesh, “A strain-driven morphotropic phase boundary in BiFeO3,” Science, 326, 977 (2009). (http://www.sciencemag.org/cgi/content/abstract/326/5955/977)
  42. L. Cai, S. Denev, V. Gopalan, and J. Nino, “Phase Transition in Weberite-type Gd3NbO7,” accepted in the J. Amer. Cer. Soc. (2009). PDF
  43. R. Behera, C-W. Lee, D. Lee, S. Sinnott, A. Asthagiri, V. Gopalan, and S. Phillpot, “Structure and energetics of 180° domain walls in PbTiO3 by density functional theory,” submitted to Phys. Rev. B (2009). PDF
  44. H. Xu, D. Lee, S. Sinnott, V. Gopalan, V. Dierolf and S. Phillpot, “Structures and Energetics of Er Defects in LiNbO3 from First-Principles and Thermodynamics Calculations,”Phys. Rev. B, 80, 144104 (2009). PDF
  45. E. Kupp, G. Messing, J. Anderson, V. Gopalan, J. Dumm, V. Kraisinger, N. Ter-Gabrielyan, L. Merkle, M. Dubinskii, V. Castillo-Simonaitis and G. Quarles, “Composite Ceramic Er:YAG Laser Gain Media,” submitted to Advanced Functional Materials (2009). PDF
  46. D. Lee, R. Berhera, P. Wu, H. Xu, Y. Li, S. Phillpot, S. Sinnott, L. Chen and V. Gopalan, “Mixed Bloch-Néel-Ising Character of 180° Ferroelectric Domain Walls,” Phys. Rev. B.-rapid communications, 80, 060102(R) (2009). PDF
  47. T. Varga, A. Kumar, E. Vlahos, M. Park, S.Hong, T. Sanehira, Y. Wang, C. Fennie, S. Streiffer, X. Ke, P. Schiffer, V. Gopalan and J. Mitchell, “Coexistence of Weak Ferromagnetism and Ferroelectricity in High Pressure LiNbO3-type Phase of FeTiO3,” Phys. Rev. Lett., 103, 047601 (2009). PDF
  48. M. Ramirez, A. Kumar, S. Denev, Y. Chu, J. Seidel, L. Martin, S-Y. Yang, R. Rai, X. Xu, J. Ihlefeld, N. Podraza, E. Saiz, S. Lee, J. Klug, S. Cheong, M. Bedzyk, O. Auciello, J. Musfeldt, D. Schlom, R. Ramesh, J. Orenstein, J. Musfeldt, A. Litvinchuk and V. Gopalan, “Spin-Charge-Lattice Coupling through Multi-Magnon Excitations in Multiferroic BiFeO3,” Appl. Phys. Lett., 94, 161905 (2009). PDF
  49. N. Madhar, A. Vasudevarao, V. Gopalan, H. Jain and K. Varma,  “Temperature Dependent Blue Second Harmonic Generation in Ba5Li2Ti2Nb8O30 Microcrystals Embedded in TeO2 Glass-Matrix,” Journal of non-crystalline solids, 355, 1517-1520 (2009). PDF
  50. M. Ramirez, A. Kumar, S. Denev, N. Podraza, X. Xu, R. Rai, Y. Chu,  J. Seidel,  L. Martin, S-Y. Yang, E. Saiz, J. Ihlefeld, S. Lee, S. Cheong, D. Schlom, R. Ramesh, J. Orenstein, J. Musfeldt, and V. Gopalan, “Magnon Sidebands in Bismuth Ferrite Probed by Nonlinear Optical Spectroscopy,” Phys. Rev. B., 79, 224106 (2009). PDF
  51. X. Xu, T. Brinzari, S. Lee, Y. Chu, L. Martin, A. Kumar, S. McGill, R. Rai, R. Ramesh, V. Gopalan, S. Cheong, J. Musfeldt, “Optical Properties and Magnetochromism in Multiferroic BiFeO3,” Phys. Rev. B., 79, 134425 (2009). PDF
  52. M. Biegalski, E. Vlahos, G. Sheng, Y. Li, L. Chen, V. Gopalan, S. Trolier-Mckinstry, D. Schlom, S. Streiffer, M. Bernhagen, P. Reiche and R. Uecker, “Influence of anisotropic strain on the dielectric and ferroelectric properties of SrTiO3 thin films on DyScO3 substrates,” Phys. Rev. B,. 79, 224117 (2009). PDF
  53. E. Vlahos, C. Brooks, K. Rabe, Carl-Johan Eklund, K. Rabe, D. G. Schlom, V. Gopalan, “Ferroelectricity in Strained CaTiO3,” in preparation for Phys. Rev. Lett. (2009). PDF
  54. C. Folkman, S. Baek, H. Jang, C. Eom, C. Nelson, X. Pan, Y. Li, L. Chen, A. Kumar, V. Gopalan, and S. Streiffer, “Stripe Vertical Domain Walls of Epitaxial (001) BiFeO3 Thin Films on Orthorhombic TbScO3 Substrate,” Appl. Phys. Lett., 94 , 251911 (2009). PDF
  55. V. Aravind, A. Morozovska, Y. Li, S. Jesse, S. Choudhury, K. Seal, E. Eliseev, S. Svechnikov, S. Phillpot, L.Q. Chen, V. Gopalan and S. Kalinin, “Correlated Switching at 180° Domain Walls,” submitted to Phys. Rev. Lett. (2009). PDF
  56. A. N. Morozovska, S. V. Kalinin, E. A. Eliseev, V. Gopalan and S. V. Svechnikov, “The Interaction of a 180° Ferroelectric Domain Wall with a Biased Scanning Probe Microscopy Tip: Geometry and Thermodynamics in Ginzburg-Landau-Devonshire Theory,” Phys. Rev. B, 78, 125407 (2008). PDF
  57. E. A. Eliseev, Anna N. Morozovska, Sergei V. Kalinin, Yulan L. Li, Jie Shen, Maya D. Glinchuk, Long-qing Chen, Venkatraman Gopalan, “Surface Effect on Domain Wall Width in Ferroelectrics,” Submitted to Physical Review B (2008). PDF
  58. S. Basu, V. Gopalan, H. Jain and D. Chakravorty, “Development of Optical Nonlinearity, High Dielectric Constant and Ferromagnetic Behavior in a Silicate Glass Nanocomposite by Suitable Heat Treatment,” J. non-crystalline Solids, 354, 3278-3283 (2008). PDF
  59. H. Xu, D. Lee, J. He, S. B. Sinnott, V. Gopalan, V. Dierolf and S. R. Phillpot, “Stability of Intrinsic Defects and Defect Clusters in LiNbO3 from Density Functional Theory Calculations,” Physical Review B, 78, 174103-1/12 (2008). PDF
  60. A. Bandyopadhyay, P. C. Ray and V. Gopalan, “Solitons and Critical Breakup Fields in Lithium Niobate Type Uniaxial Ferroelectrics,” European Physical Journal B, 65, 525–531 (2008). PDF
  61. S. Choudhury, Y. Li, N. Odagawa, A. Vasudevarao, L. Tian, P. Capek, V. Dierolf, A. Morozovska, E. Eliseev, S. Kalinin, L. Chen and V. Gopalan, “The Influence of 180° Ferroelectric Domain Wall Width on the Threshold Field for Wall Motion,” J. Appl. Phys., 104, 084107 (2008). PDF
  62. S. Denev, A. Kumar, M. Biegalski, H. W. Wang, C. M. Folkman, A. Vasudevarao, Y. Han, I. M. Reaney, S. T. Mckinstry, C. B.- Eom, D. G. Schlom and V. Gopalan, “Magnetic Color Symmetry of Lattice Rotations in a Diamagnetic Material,” Phys. Rev. Lett., 100, 257601 (2008). PDF
  63. L. Tian, A. Vasudevarao, A. N. Morozovska, E. A. Eliseev, S. Kalinin and V. Gopalan, “Nanoscale Polarization Profile Across a 180° Ferroelectric Domain Wall Extracted by Quantitative Piezoelectric Force Microscopy” J. Appl. Phys., 104, 074110 (2008). PDF
  64. A. Morozovska, E. Eliseev, G. Svechnikov, V. Gopalan and S. Kalinin, “Effect of the Intrinsic Width on the Piezoelectric Force Microscopy of a Single Ferroelectric Domain Wall,” J. Appl. Phys. 103, 124110 (2008). PDF
  65. A. Kumar, N. Podraza, S. Denev, J. Li, L. W. Martin, Y. H. Chu, R. Ramesh, R. Collins, and V. Gopalan, “Linear and Nonlinear Optical Properties of Multifunctional PbVO3 Thin Films,” Appl. Phys. Lett. 92, 231915 (2008). PDF
  66. M. Krishnamurthi, L. Tian and V. Gopalan, “Design and Simulation of Planar Electro-optic Switches in Ferroelectrics,”Appl. Phys. Lett., 93 052912 (2008). PDF
  67. A. Kumar, R. C. Rai, N. J. Podraza, S. Denev, M. Ramirez, Y-H. Chu, L. W. Martin, J. Ihlefeld, T. Heeg, J. Schubert, D. G. Schlom, J. Orenstein, R. Ramesh, R. W. Collins, J. L. Musfeldt, and V. Gopalan, “Linear and nonlinear optical properties of BiFeO3,” Appl. Phys. Lett. 92, 121915 (2008).  PDF
  68. A. Vasudevarao, S. Denev, M. D. Biegalski, Y. Li, L-Q. Chen, S. T.-McKinstry, D. G. Schlom, and V. Gopalan, “ Polarization Rotation Transitions in Anisotropically Strained SrTiO3 Films,” Appl. Phys. Lett. 92, 192902 (2008).  PDF
  69. S. Kochawattana, A. Stevenson, E. Kupp, S. Lee, M. Ramirez, V. Gopalan, and G. L. Messing, “Sintering and Grain Growth in SiO2 Doped Nd:YAG,” J. Eur. Cer. Soc. 28, 1527–1534 (2008). PDF
  70. M. O. Ramirez, J. Wisdom, Z. Liu, R. L. Byer, G. L. Messing and V. Gopalan, “Three-Dimensional Grain Boundary Spectroscopy in Transparent High Power Ceramic Laser Materials,” Optics Express,16, 5965-5973 (2008) PDF
  71. M. O. Ramirez, M. Krishnamurthy, S. Denev, A. Kumar, S.-Y. Yang, Y. H. Chu, E. Saiz, A. P. Pyatakov, A. Bush, D. Viehland, J. Orenstein, R. Ramesh and V. Gopalan, “Two-Phonon Coupling to the Antiferromagnetic Phase Transition in Multiferoic BiFeO3,” Appl. Phys. Lett. 92, 022511 (2008).  PDF
  72. V. Gopalan, J. Badding, P. Sazio, and A. Peacock, “Endoscopic fiber: Microfluidic chemical deposition moves optical fiber to the nanoscale,” Laser Focus World, 44 (1), 135-138 (2008). PDF
  73. S. Durbin, T. Jach, S. Kim and V. Gopalan, “Natural focusing of rays from ferroelectric lithium niobate wafers,” Appl. Phys. Lett. 91, 142909 (2007). PDF
  74. D. Won, M. O. Ramirez, V. Gopalan, H. Kang, N. F. Baril, J. Calkins, P. J. A. Sazio, J. V. Badding and V. Gopalan, “Amorphous silicon-filled microstructures optical fibers for in-fiber light modulation,” Appl. Phys. Lett. 91, 161112-1/3(2007). PDF
  75. P. Capek, G. Stone, V. Dierolf, C. Althouse and V. Gopalan, “Raman studies of ferroelectric domain walls in lithium tantalate and niobate,” Phys. Stat. Sol. 4, 830-833 (2007). PDF
  76. J. F. Ihlefeld, A. Kumar, V. Gopalan, D. G. Schlom, Y. B. Chen, X. Q. Pan, T. Heeg, J. Schubert, X. Ke, P. Schiffer, J. Orenstein, L. W. Martin, Y. H. Chu, and R. Ramesh, “Adsorption-controlled molecular-beam epitaxial growth of BiFeO3,” Appl. Phys. Lett. 91, 071922 (2007). PDF
  77. S. V. Kalinin, S. Jesse, B. J. Rodriguez, E. A. Eliseev, V. Gopalan and A. N. Morozovska, “Quantitative determination of the tip parameters in piezoresponse force microscopy,” Appl. Phys. Lett. 90, 212905 (2007). PDF
  78. M. Krishnamurthy, S. Denev, L. Tian, T. Lehecka, J. Thomas and V. Gopalan, “2-D dynamic focusing of laser light by ferroelectrics based electro-optic domain lenses,” Appl. Phys. Lett. 90, 201106-1/3 (2007). PDF
  79. J.V. Badding, A. Amezcua Correa, T.J. Scheidemantel, C.E. Finlayson, N.F. Baril, D.J. Won, H. Fang, B. Jackson, A. Borhan and V. Gopalan, “Integrated Optoelectronics in an Optical Fiber,” Proceedings of SPIE-The International Society for Optical Engineering, 6475, 64750N (2007). PDF
  80. N.F. Baril, J.V. Badding, V. Gopalan, P.J. Sazio, T.J. Scheidemantel, B.R. Jackson, D.-J. Won, A. Amezcua Correa and C. Finlayson, “Microstructured Optical Fibers as New Nanotemplates for High Pressure CVD”, Materials Research Society Symposium Proceedings, 998, 0988-QQ04-02 (2007) PDF
  81. A. Kumar, L. Martin, S. Denev, Q. Zhan, M. Chi, T. Mizoguchi, J. Kortright, J. Kreisel, N. Browning, R. Ramesh, Y. Suzuki, and V. Gopalan, “Polar and Magnetic properties of PbVO3 Thin Films,” Physical Review B- Rapid Communications 75, 060101-4(R)(2007). PDF
  82. A. Vasudevarao, A. Kumar, L. Tian, J. H. Haeni, Y. L. Li, C.-J. Eklund, Q. X. Jia, R. Uecker, P. Reiche, K. M. Rabe, L. Q. Chen, D. G. Schlom, and Venkatraman Gopalan, “Multiferroic Domain Dynamics in  Strained Strontium Titanate” Phys.Rev. Lett., 97, 257602 (2006).  PDF
  83. P. J.A. Sazio, A. Amezcua-Correa, C. E. Finlayson, J. R. Hayes, T. J. Scheidemantel, N. F. Baril, B. R. Jackson, D-J. Won, F. Zhang, R. Margine, V. Gopalan, V. H. Crespi, and J. V. Badding,“Microstructured optical fibers as high-pressure microfluidic reactors,” Science, 311, 1583 (2006). article
  84. A. K. Bandhyopadhyay, P. C. Ray and V. Gopalan, “Dynamical systems analysis for polarization in ferroelectrics,” Journal of Applied Physics, 100, 114106 (2006). PDF
  85. A. K. Bandhyopadhyay, P. C. Ray and V. Gopalan, “An approach to the Klein–Gordon equation for a dynamic study in ferroelectric materials,” Journal of Physics Condensed Matter, 18, 4093 (2006). PDF
  86. V. Vaithyanathan, J. Lettieri, W. Tian, A. Kochhar, H. Ma, A. Sharan, A. Vasudevarao, V. Gopalan, Y. Li, L. Q. Chen, P. Zschack, J. C. Woicik, J. Levy, and D. G. Schlom, “c-axis oriented epitaxial BaTiO3 films on (001) Si,” J. Appl. Phys. 100, 024108-1/9 (2006). PDF
  87. Y. L. Li, S. Choudhury,J.H. Haeni,M.D. Biegalski,A. Vasudevarao(3),A. Sharan,H. Z. Ma,J. Levy,V. Gopalan,S. Trolier-McKinstry,D. G. Schlom,Q. X. Jia,and L. Q. Chen, “Phase transitions and domain structures in strained pseudocubic (001) SrTiO3 thin films,” Physical Review B, 73, 184112-1-to-13 (2006). PDF
  88. J. V. Badding, V. Gopalan and P. J. A. Sazio, “Building semiconductor structures in optical fiber,” Photonics Spectra, 40, 80 (2006). PDF
  89.  J. V. Badding, P. J. A. Sazio, A. Amezcua Correa, T. J. Scheidemantel, C. E. Finlayson, N. F. Baril, D.-J.Won, H. Fang, B. Jackson, V. Gopalan, D. H. Werner and L. Li, “Fabrication of semiconductor-metal optical fiber metamaterials for electromagnetic devices,” Proceedings, IEEE Antennas and Propagation Society International Symposium (IEEE Cat. No. 06CH37758C), p 768 (2006)
  90. S-J. Lee, J. Stitt, W. White, G. Messing and V. Gopalan, “Spatial mapping of Fluorescence and Raman spectra across grain boundaries in transparent Nd-YAG ceramic laser materials,” Proceedings of the SPIE, Solid State Lasers XV:Technology and Devices, Editors: Hanna J. Hoffman, Ramesh K. Shori, V 6100, page 610011-1/11-8, San Jose CA, Jan (2006). PDF
  91. T. Jach, V. Gopalan, “Observations of 180° Ferroelectric Domains through Lithium Niobate Using Bragg and Laue X-Ray Topography with the Application of Electric Fields,” Ceramic Transactions, 196, 119-126 (2006). PDF
  92. D. A. Scrymgeour , V. Gopalan and K. Gahagan, “Tunable microphotonic devices in ferroelectrics,” Am. Ceram. Soc. Bulletin, 84 (5), 14-17 (2005). PDF
  93. Badding, J. V., P. J. A. Sazio, A. Amezcua Correa, T. J. Scheidemantel, C. E. Finlayson, N. F. Baril, D. J. Won, H. Fang, B. Jackson, A. Borhan and V. Gopalan (4). “Fabrication of extreme aspect ratio wires within photonic crystal fibers.” Proceedings of SPIE-The International Society for Optical Engineering” 6005, 111-119 (2005). PDF
  94. D. A. Scrymgeour, B. Koc, L. Tian, M. W. Gentzel, K. Uchino and V. Gopalan, “Hybrid Electro-optic and Piezoelectric Laser Beam Steering in Two Dimensions,” IEEE Journal of Lightwave Technology, 23, 2772-2777 (2005). PDF
  95. N. Malkova, D. Scrymgeour, and V. Gopalan, “Numerical study of the light-beam propagation and superprism effect inside two-dimensional hexagonal photonic crystals,” Physical Review B, 72, 045144 (2005). PDF
  96. D. Scrymgeour and V. Gopalan, “Nanoscale Piezoelectric response at a single ferroelectric Domain wall,” Phys. Rev. B 72, 024103 (2005). PDF
  97. L. Tian, D. A. Scrymgeour and V. Gopalan, “Real-time study of domain dynamics in Sr0.61Ba0.39Nb2O6,” J. Appl. Physics, 97, 114111-1(2005). PDF
  98. D. A. Scrymgeour, L. Tian, V. Gopalan, D. Chauvin and K. A. Schepler, “Phased-Array Electro-Optic Steering of Large Aperture Laser Beams using Ferroelectrics,” Applied Physics Letters, 86, 211113-1-3 (2005). PDF
  99. D. Scrymgeour, V. Gopalan,  A. Itagi, A. Saxena and P. Swart, “Phenomenological Theory of a Single Domain Wall in Uniaxial Trigonal Ferroelectrics: Lithium Niobate and Lithium Tantalate,” Phys. Rev. B, 71, 184110-1/13 (2005). PDF
  100. S. Kim and V. Gopalan, “Optical index profile at an antiparallel ferroelectric domain wall in lithium niobate,” Materials Science and Engineering, B Solid State Materials for Advanced Technologies, 120, 91-94 (2005). PDF
  101. C.L. Sones, C.E. Valdivia, J.G. Scott, S. Mailis, R.W. Eason, D.A. Scrymgeour, V. Gopalan, T. Jungk and E. Soergel, “Ultraviolet laser-induced sub-micron periodic domain formation in congruent undoped lithium niobate crystals,” Applied Physics B, 80,  341(2005). PDF
  102. C.E. Valdivia, C.L. Sones, J.G. Scott, S. Mailis, R.W. Eason, D.A. Scrymgeour, V. Gopalan, T. Jungk and E. Soergel,  “Nanoscale surface domain formation on the + z face of lithium niobate by pulsed UV laser illumination,” Applied Physics Letters, 86, 022906 (2005). PDF
  103. L. Tian and V. Gopalan, “Domain reversal in stoichiometric lithium tantalate prepared by vapor transport equillibration,” Applied Physics Letters, 85, 4445–4447 (2004). PDF
  104. K. Choi, M. Biegalski, Y. Li, A. Sharan, J. Schubert, R. Uecker, P. Reiche, Y. Chen, X. Pan, V. Gopalan, L. Chen, D. Schlom and C. Eom, “Enhancement of ferroelectricity in strained BaTiO3 thin films,” Science, 306, 1005 (2004). PDF
  105. J. Casson, K. Gahagan, D. Scrymgeour, R. Jain, J. Robinson, V. Gopalan and R. Sander, “Electro-optic Coefficients of Lithium Tantalate at Near-IR Wavelengths,” Journal of the Optical Society of America, B, 21, 1948-1952 (2004). PDF
  106. D. Scrymgeour and V. Gopalan, “Local electromechanical response at a single ferroelectric domain wall,” Metallurgical and Materials Transactions, 35A, 2287-90 (2004). PDF
  107. A. Sharan, J. Lettieri, Y. Jia, W. Tian, X. Pan, D. Schlom and V. Gopalan, “Bismuth Manganite: a multiferroic with a large nonlinear optical response,” Physical Review B, 60, 214109/1-7 (2004).PDF
  108. S. Phillpot and V. Gopalan, “Coupled displacive and order-disorder dynamics in LiNbO3 by molecular dynamics simulation,” Applied Physics Letters, 84, 1916-18 (2004). PDF
  109. T. Jach, S. Kim, V. Gopalan, S. Durbin and D. Bright, “Long range strains and the effects of applied fields at 180° ferroelectric domain walls in lithium niobate,” Physical Review B, 69,064113-1/9 (2004). PDF
  110. N. Malkova and V. Gopalan, “Strain-tunable optical valves at T-junction waveguides in photonic crystals,” Physical Review B , 68, 245115-1/6 (2003). PDF
  111. A. Sharan, I. Ahn, C. Chen, R. W. Collins, J. Lettieri, D. Schlom and V. Gopalan, “Large optical nonlinearities in BiMnO3 thin films,” Applied Physics Letters, 83, 5169-71 (2003). PDF
  112. L. Tian, A. Sharan and V. Gopalan, “Anomalous electro-optic effect in Sr0.6Ba0.4Nb2O6 single crystals and its application in 2-dimensional laser scanning,” Applied Physics Letters, 83, 4375-77 (2003). PDF
  113. N. Malkova, S. Kim, and V. Gopalan, “Strain-tunable light transmission through a 90° bend waveguide in a two-dimensional photonic crystal,” Applied Physics Letters,  83, 1509-11 (2003). PDF
  114. D. Scrymgeour, N. Malkova, S. Kim, and V. Gopalan, “Electro-optic control of superprism effect in photonic crystals,” Applied Physics Letters, 82, 3176-78 (2003). PDF
  115. N. Malkova, S. Kim, T. Dilazaro and V. Gopalan, “Symmetrical analysis of complex two-dimensional hexagonal photonic crystals,” Physical Review B, 67, 125203-11 (2003) PDF
  116. N. Malkova, S. Kim and V. Gopalan, “Jahn-Teller effect in two-dimensional photonic crystals,” Physical Review B, 68, 045105-10 (2003). PDF
  117. V. Dierolf, C. Sandmann, V. Gopalan, S. Kim, and K. Polgar, “Rearrangement of Rare Earth Defects under Domain Inversion in LiNbO3,”  Radiat. Eff. Defects Solids, 158, 247 (2003). PDF
  118. V. Dierolf, S. Sandman, S. Kim, V. Gopalan and K. Polgar, “Ferroelectric domain imaging by defect luminescence microscopy,” J. Appl. Physics, 93, 2295-97(2003). PDF
  119. N. Malkova, S. Kim and V. Gopalan, “Symmetrical analysis of complex photonic bandgap crystals,” Journal of Physics: Condensed matter, 15, 4535-4542 (2003).  PDF
  120. N. Malkova, S. Kim and V. Gopalan, “Symmetrical analysis of defect level splitting in two-dimensional photonic crystals” Journal of Physics: Condensed matter, 15, 4535-42 (2003) PDF
  121. D. Scrymgeour and V. Gopalan, “Local electromechanical response at a single ferroelectric domain wall,” Metallurgical and Materials Transactions A, 35, 2287 (2003). PDF
  122. T. Jach, S. Kim, S. Durbin, V. Gopalan and D. Bright, “Strains at Ferroelectric Domain Walls under an Applied Field,” Fundamental Physics of Ferroelectrics 2002, Washington DC, Editor: R. E. Cohen, in print,  American Institute of Physics (2002).  PDF
  123. S. Kim, B. Steiner, A. Gruverman and V. Gopalan, “On domain wall broadening in ferroelectric lithium niobate and tantalate,” Fundamental Physics of Ferroelectrics 2002, Washington DC, Editor: R. E. Cohen, in print,  American Institute of Physics (2002).  PDF
  124. S. Kim, V. Gopalan and A. Gruverman, “Coercive fields in ferroelectrics: A case study in lithium niobate and lithium tantalate,” Appl. Phys. Lett, 80, 2740 (2002).  PDF
  125. N. Malkova, S. Kim and V. Gopalan, “Symmetrical perturbation analysis of complex two-dimensional photonic crystals,” Physical Review B, 66, 115113-23 (2002). PDF
  126. I. C. Khoo, Y. Zhang, A. Diaz, J. Ding, I. B. Divliansky, K. Holliday, T. S. Mayer, V.Crespi, D. Scrymgeour and V. Gopalan, “Widely tunable nonlinear liquid crystal-based photonic crystals,” Proceedings of Liquid Crystals VI –SPIE  International Symposium on Optical science and Technology, Vol. 4799 (2002). PDF
  127. D. Scrymgeour, A. Sharan, V. Gopalan, K. T. Gahagan, R. Sander, J. M. Robinson, F. Muhammad, P. Chandramani and F. Kiamilev, “ Cascaded Electro-optic scanning of laser light over large angles using domain microengineered ferroelectrics,” Appl. Phys. Lett, 81, 3140-3 (2002).  PDF
  128. F. Muhammad, P. Chandramani, J. Ekman, F. Kiamilev, D. Scrymgeour, V. Gopalan, E. Moore and M. Weiler, “Multi-channel ±1.1kV arbitrary waveform generator for beam steering using ferroelectric device.” IEEE Photonics Technology Letters, 14, 1605 (2002). PDF
  129. J. Casson, L. Wang, N. Libatique, R. Jain, D. Scrymgeour, V. Gopalan and K. Gahagan, “Near-IR Tunable Laser Using an Integrated LiTaO3 Electro-Optic Deflector,”  Applied Optics, 41, 6416-6419 (2002).  PDF
  130. Y. Barad, J. Lettieri, C. D. Theis, D. G. Schlom and V. Gopalan, “In-situ probing of domain poling in Bi4Ti3O12 thin films by optical second harmonic generation,” Integrated Ferroelectrics, 44, 19-24 (2002). PDF
  131. Y. Barad, J. Lettieri, C. Theis, D. Schlom and V. Gopalan, “Domain rearrangement in Bi4Ti3O12 thin films studied by in-situ optical second harmonic generation,”  J. Appl. Phys. 90, 3497 (2001).  PDF
  132. Y. Barad, V. Gopalan, C. Theis, J. Lettieri, J. Jiang and X. Pan, “ Probing domain microstructure in ferroelectric Bi4Ti3O12 thin films by optical second harmonic generation,” J. Appl. Phys. 89, 1387 (2001). PDF Errata PDF
  133. H. Yu, V. Gopalan, J. Sindel and C. Randall, “Domain switching and electromechanical properties of pulse poled Pb(Zn1/3Nb2/3)O3-PbTiO3 crystals,” J. Appl. Phys89, 561 (2001). PDF
  134. F. Muhammad, P. Chandramani, J. Ekman, F. Kiamilev, V. Gopalan, E. Moore and M. Weiler, “Compact Multichannel 2kV Arbitrary Waveform Generator for Ferroelectric Device Arrays,” in 2001 IEEE/LEOS Annual Meeting Conf. Proc., vol. 2, pp. 818-819, Nov. 2001.
  135. S. Kim, V. Gopalan, K. Kitamura and Y. Furukawa, “Domain reversal and non-stoichiometry in LiTaO3J. Appl. Phys., 90, 2949 (2001).  PDF
  136. S. Kim and V. Gopalan, “Strain-tunable photonic band gap crystals”, Appl. Phys. Lett. 78, 3015-17 (2001). PDF
  137. D. Scrymgeour, V. Gopalan, T. E. Haynes, “Crystal ion slicing of domain micro-engineered electro-optic devices on lithium niobate,” Integrated Ferroelectrics, 41, 1687 (2001).
  138. D. Scrymgeour, Y. Barad, V. Gopalan, K. T. Gahagan, J. M. Robinson, Q. X. Jia and T. E. Mitchell, “A large angle electro-optic scanner on LiTaO3 fabricated by in-situ monitoring of ferroelectric domain microengineering,” Applied Optics, 40, 6236 (2001). PDF
  139. K. T. Gahagan, D. Scrymgeour, Joanna L. Casson, J. M. Robinson and V. Gopalan, “Integrated high power electro-optic lens and large-angle deflector,” Applied Optics31, 5638 (2001).  PDF
  140. K. Gahagan, J. Casson, Gopalan, V.; Scrymgeour, D.A.; Robinson, J.M. , “ Integrated high-power electro-optic lens/scanner for space-based platforms” (Conference Paper in Journal). Proceedings of the SPIE – The International Society for Optical Engineering. Vol. 4134, pp. 133-7; (2000). PDF
  141. V. Gopalan, K. Kitamura, Y. Furukawa, “Domain reversal and wall structure of 180° ferroelectric domains in LiTaO3 crystals,”  Fundamental Physics of Ferroelectrics 2000, Aspen Center for Physics, Winter Workshop, Editor: R. E. Cohen, p 183-190,  American Institute of Physics (2000). PDF
  142. Yang, T.J. ; Gopalan, V. ; Swart, P. ; Mohideen, U. “Experimental study of internal fields and movement of single ferroelectric domain walls “Journal of the Physics and Chemistry of Solids61, 275 (2000). PDF
  143. Kitamura, K.; Furukawa, Y.; Takekawa, S.; Hatanaka, T.; Ito, H.; Gopalan, V.; Injeyan, H.; Keller, U.; Marshall, C., “Domain switching performance of stoichiometric LiTaO3 for bulk quasi-phase matching devices” OSA Trends in Optics and Photonics. Advanced Solid State Lasers. Vol.34. Proceedings. Opt. Soc. America, Washington, DC, USA. pp. 321-3; (2000).
  144. S. Kim, B. Steiner, V. Gopalan, “Direct X-ray Synchrotron imaging of strains at 180° domain walls in congruent LiNbO3 and LiTaO3 crystals,” Appl. Phys. Lett. 77, 2051-53 (2000). PDF
  145. C. C. Battle, S. Kim, V. Gopalan,  K. Borkacy, M. C. Gupta, “Ferroelectric domain reversal in congruent LiTaO3 at elevated temperatures,” Appl. Phys Lett. 76, 2436 (2000).  PDF
  146. T. J. Yang, U. Mohideen, V. Gopalan, P. J. Swart, “Observation of mobility study of single 180° domain wall in LiTaO3Ferroelectrics 222 (1-4), 609 (1999).
  147. V. Gopalan, Q. X. Jia, T. E. Mitchell, “ In-situ video observation of 180° domain kinetics in congruent LiNbO3 crystals,” Appl. Phys. Lett. 75, 16 (1999).  PDF
  148. V. Gopalan, A. Itagi, S. Gerstl, P. Swart, Q. X. Jia, T. E. Mitchell, T. E. Schlesinger, D. D. Stancil, “Ferroelectric domain kinetics in congruent LiTaO3,” Integrated Ferroelectrics, 27, 137 (1999).
  149. K. T. Gahagan, V. Gopalan, J. M. Robinson, Q. X. Jia, T. E. Mitchell, M. J. Kawas, T. E. Schlesinger, D. D. Stancil, “ Fabrication and characterization of high-speed integrated electro-optic lens and scanner devices.” Proceedings of the SPIE,  3620, (1999). PDF
  150. Yi Chiu, V. Gopalan, M. J. Kawas, T. E. Schlesinger, D. D. Stancil, W. P. Risk, “Integrated optical device with second-harmonic generator, electrooptic lens, and electrooptic scanner in LiTaO3,” J. Lightwave Technol.  17, 462 (1999).
  151. K. T. Gahagan, V. Gopalan, J. M. Robinson, Q. X. Jia, T. E. Mitchell, “ Integrated Electro-optic lens/scanner in LiTaO3 single crystal,” Applied Optics, 38, 1186 (1999).  PDF
  152. J. C. Fang, M. J. Kawas, J. Zou, V. Gopalan, T. E. Schlesinger, D. D. Stancil, “Shape-optimized electrooptic beam scanners: Experiment,” IEEE Photonic Technol. Lett. 11, 1041 (1999). PDF
  153. V. Gopalan, K. T. Gahagan, M. Kawas, Q. X. Jia, J. M. Robinson, T. E. Mitchell, T. E. Schlesinger, D. D. Stancil, “Integration of electro-optic lenses and scanners on ferroelectric LiTaO3,” Integrated Ferroelectrics, 25, 31 (1999).
  154. V. Gopalan, S. S. A. Gerstl, A. Itagi, Q. X. Jia, T. E. Mitchell, T. E. Schlesinger, D. D. Stancil, “Mobility of 180° domain walls in congruent LiTaO3 measured using in-situ electro-optic imaging microscopy,” J. Appl. Phys. 86, 1638 (1999).  PDF
  155. V. Gopalan , T. E. Mitchell, “In situ video observation of 180° domain switching in LiTaO3 by electro-optic imaging microscopy”, J. Appl. Phys., 85, 2304 (1999).  PDF
  156. V. Gopalan, T. E. Mitchell, K. E. Sickafus, “Switching kinetics of 180° domains in congruent LiNbO3 and LiTaO3 crystals,” Solid State Communications, 109, 111 (1999).
  157. T. J. Yang, U. Mohideen, V. Gopalan, P. Swart, “Direct observation of pinning and bowing of a single ferroelectric domain wall,”  Phys. Rev. Lett. 82, 4106 (1999).  PDF
  158. Gim, Y.; Gahagan, K.T.; Kwon, C.; Hawley, M.; Gopalan, V.; Robinson, J.M.; Mitchell, T.E.; Jia, Q.X. “Growth of LiNbO3 films on single crystal sapphire substrates using pulsed laser deposition”, Integrated Ferroelectrics. Vol. 25, Iss. 1-4, pp. 91-102; (1999).
  159. V. Gopalan , T. E. Mitchell, K. Kitamura, N. Furukawa“ The role of stoichiometry in 180° domain switching in LiNbO3 crystals,” Appl. Phys. Lett. , 72, 1981 (1998). PDF
  160. V. Gopalan, Terence E. Mitchell, “Wall velocities, Switching times, and stabilization mechanism of 180° domains in congruent LiTaO3 crystals” J. Appl. Phys., 83, 941, (1998).  PDF
  161. K. Kitamura, Y. Furukawa, K. Niwa, V. Gopalan, T. E. Mitchell, “Crystal growth and low coercive field 180° domain switching characteristics of stoichiometric LiTaO3,” Applied Physics Letters, 73, 3073 (1998). PDF
  162. V. Gopalan, Kurt Sickafus, Terence E. Mitchell, “Real-time domain kinetics in LiTaO3 crystals” Integrated Ferroelectrics , 22, 405[925] (1998).
  163. V. Gopalan, Terence E. Mitchell, Q. X. Jia, J. M. Robinson, M.J. Kawas, T. E. Schlesinger, D. D. Stancil, “Ferroelectrics as a versatile solid state platform for integrated optics” Integrated Ferroelectrics, 22,465 [985](1998).
  164. J. N. Mitchell, R. Devanathan, N. Yu, K. E. Sickafus, C. J. Wetteland, V. Gopalan, M. A. Nastasi, K. J. McClellan, “ Radiation effects in corundum structure derivatives,” Nuclear Instruments and Methods in Physics Res. B 141, 461 (1998). PDF
  165. Matthew Kawas, V. Gopalan,  T. E. Schlesinger, Daniel D. Stancil, “ Electro-optic Lens stack on LiTaO3  crystals,” J. Lighwave Technol. 15, 1716 (1997)
  166. V. Gopalan and M. C. Gupta, “Origin of internal fields and visualization of 180° domains in congruent LiTaO3 crystals,” J. Appl. Phys. 80, 6099-106 (1996). PDF
  167. V. Gopalan and Mool C. Gupta, “Observation of internal field in LiTaO3 single crystals: Its origin and time-temperature dependence ,” Appl.Phys.Lett., 68, 888 (1996). PDF
  168. V. Gopalan, Matthew Kawas, T. E. Schlesinger, Mool C. Gupta, and Daniel D. Stancil, “ Integrated quasi-phase-matched second-harmonic generator and electrooptic scanner on LiTaO3 single crystals.” IEEE Photonics Technology Letters, 8, 1704 (1996) ; also presented CLEO’96. PDF
  169. V. Gopalan and Rishi Raj, “ Domain Structure and Phase transitions in epitaxial KNbO3 thin films observed by in-situ Second Harmonic Generation measurements,” Appl. Phys.Lett., 68, 1323 (1996).  PDF
  170. V. Gopalan and Mool C. Gupta, “Periodic Domain Inversion in Z-cut LiTaO3 by Electron-Beam scanning assisted by an internal field within the Crystal, Proceedings, SPIE Vol. 2700, 196 (1996). PDF
  171. V. Gopalan and R. Raj, “ Domain wall pinning by grain boundaries in epitaxial KNbO3 thin films studied by in-situ Second harmonic Generation,” Ferroelectric Thin Films VI,  493, Proceedings, Materials Research Society, Boston, p. 75, December (1997).
  172. C. J. Wetteland, K. E. Sickafus, V. Gopalan, J. N. Mitchell, T. Hartmann, M. Nastasi,  C. J. Maggiore, J. R. Tesmer, T. E. Mitchell, “Radiation damage effects in ferroelectric LiTaO3 single crystals, “ProceedingsMaterials Research Society, Fall Meeting,  at Boston, December (1997). PDF
  173. V. Gopalan and Mool C. Gupta, “Internal fields in lithium tantalate single crystals,” Proccedings, SPIE, Vol. 2700, 28 (1996). PDF
  174. V. Gopalan, Rishi Raj, “In-Situ X-Ray Diffraction Study of Phase Transitions in Epitaxal KNbO3 Thin Films,” Ferroelectrics  200, Numbers 1-4 pp. 343-351(1997).
  175. V. Gopalan, and Mool C. Gupta, “Origin and characteristics of internal fields in LiNbO3 crystals,” Ferroelectrics  198, 1-4 pp. 49-59 (1997);.
  176. V. Gopalan, and Mool C. Gupta, “Origin of internal field and visualization of 180° domains in congruent LiTaO3 crystals,” J. Appl. Phys. 80, 6099 (1996).  PDF
  177. Daniel D. Stancil, V. Gopalan, M. Kawas,  M. C. Gupta, J. Li, “Integrated second harmonic generator and high speed optical beam scanner for data storage,” Idema Insight, 9 (5) 4 (1996).
  178. V. Gopalan and Rishi Raj,  “ Structure-Optical Property Correlation of Epitaxial Potassium Niobate Thin Films Deposited on Magnesium Oxide (100) Substrates Using a Strontium Titanate Transition layer,” J. Am. Cer. Soc., 78, 1825 (1995). PDF
  179. V. Gopalan, Huyang Xie, Wei-Yung Hsu and Rishi Raj,  “ Orientation Control of KNbOthin films deposited by laser ablation on single crystal MgO substrates using SrTiO3 transition layers”, Ferroelectrics, 152, 55 (1994).
  180. V. Gopalan and Rishi Raj, “ Domain Structure-Second Harmonic Generation Correlation in Potassium Niobate thin films on Strontium Titanate substrates,” J.Am.Cer. Soc, 79, 3289 (1996). PDF
  181. V. Gopalan and Rishi Raj, “Electric field induced domain rearrangement in potassium niobate thin films studied by in situ second harmonic generation measurements,” J. Appl. Phys, 81, 865 (1996). PDF
  182. W. Y. Hsu, Gabriel Braunstein,V. Gopalan, Craig S. Willand and Mool C. Gupta, “Correlation between Structural and Optical  properties in Proton-Exchanged LiNbO3,” Appl. Phys. Lett. 61, 3083 (1992).  PDF
  183. W. Y. Hsu, Craig S. Willand, V. Gopalan, and Mool C. Gupta, “ Effect of Proton Exchange on the non-linear optical properties of LiNbO3 and LiTaO3,” Appl. Phys. Lett. 61, 2263 (1992).  PDF
  184. Alan C. G. Nutt,  V. Gopalan and Mool C. Gupta, “Domain inversion in LiNbO3 using direct electron-beam writing,” Appl. Phys. Lett. 60, 2828 (1992).  PDF
  185. V. Gopalan, Thomas A. Strasser, W.Y. Hsu and Mool C. Gupta, “Design of high efficiency Quasi-Phase matched devices for Second Harmonic Generation, Part A – Waveguide Structure effects,” Technical report (284158D), Eastman Kodak Company, Rochester, NY (Dec. 1992).
  186. T. A. Strasser, V. Gopalan, W. Y. Hsu, and Mool C. Gupta, “Design of high efficiency Quasi-Phase matched devices for Second Harmonic Generation, Part B – Domain Shape Effects,” Technical report (284157C), Eastman Kodak Company, Rochester, NY (Dec 1992).

 

Skip to toolbar