Determination of photorefrative constants in LiNbO$_3$ using second harmonic generation

제2고조파발생을 이용한 LiNbO$_3$의 중요 광굴절상수측정

  • Published : 2001.06.01


We report a simple method for determining photovoltaic constant and conductivities of any photorefractive crytals which have no inversion symmetry by utilizing the electric field dependence of non-phase-matched second harmonic generation. New theoretical expression for the electric field dependence of Maker fringes is derived and space charge field can be determined using this from the observed change of intensity of second harmonic wave. The photovoltaic constant, dark conductivity and photoconductivity are easily deduced from an analysis of the measured relaxation behavior of space-charge field at two different light intensities. We demonstrate this method for $LiNbO_3$ at 514.5 nm.4.5 nm.



  1. Topics Appl. Phys. v.61;62 Photorefractive Materials and Applications ⅠandⅡ P. G$\"{u}$nter(ed.);J.-P. Huignard(ed.)
  2. Appl. Phys. Lett. v.21 no.4 High-voltage bulk photovoltaic effect and photorefractive process in LiNbO₃ A.M. Glass;D. von der Linde;T. J. Negran
  3. Ferroelectrics v.21 The photovoltaic effect and the charge transport in LiNbO₃ W. J$\"{o}$sch;R. Munser;W. Ruppel;P. W$\"{u}$rfel
  4. Appl. Phys. Lett. v.53 no.4 Enhanced resistance to photorefraction and photovoltaic effect in Lirich LiNbO₃:Mg crystals J.-K. Wen;L. Wang;Y.-S. Tang;H. Wang
  5. Ferroelectrics v.101 Photovoltaic effect and photorefraction in LiNbO₃:Mg crystals J.-K Wen;L. Wang;Y.-S. Tang;W. Hong;Y.Zhu;H. Wang
  6. Appl. Phys. A v.55 Charge transport processes in LiNbO₃:Fe at high intensity laser pulses F. Jermann;E. Kr$\"{o}$tzig
  7. Opt. Lett. v.23 no.24 Stoichiometric Mg:LiNbO₃as an effective material for nonlinear optics Y. Furukawa;K. Kitamura;S. Takekawa;K. Niwa;H. Hatano
  8. Appl. Phys. Lett. v.34 no.5 Efficient hologram recording in LiNbO₃:Fe using optical pulses C.-T. Chen;D.M. Kim;D. von der Linde
  9. Appl. Phys. B v.64 Light-induced charge transport processes in photorefractive crystals Ⅰ: Models and experimental methods K. Buse
  10. Appl. Phys. A v.55 Photoconductivity and photovoltaic Behaviour of LiNbO₃and LiNbO₃waveguides at hight optical intensities R. G$\"{o}$ring;Z. Yuan-Ling;St. Steinberg
  11. 한국광학회지 v.10 no.5 LiNbO₃:MgO결정에서 광굴절 격자의 회절특성 이재철;장지웅;김준태;신승호
  12. Opt. Comm. v.173 Simple Measurement of space-charge field in a LiNbO₃crystal doped with 0.65 mol.% MgO using second harmonic generaiton B. G. Kim;B. K. Rhee;M. Cha
  13. J. Appl. Phys. v.83 no.8 The threshold effect of incident light intensity for the photorefractive light-induced scattering in LiNbO₃:Fe, $M(M=Mg^{2+},Zn^{2+},In^{3+}$ crystals G. Zhang;G. Zhang;S. Liu;J. Xu;Q. Sun;X. Zhang
  14. J. Appl. Phys. v.41 no.4 Maker fringes:A detailed comparison of theory and experiment for isotropic and uniaxial crystals J. Jerphagnon;S. K. Kurtz
  15. Nonlinear Optics R.W. Boyd
  16. J. Appl. Phys. v.54 no.6 Measurement of bulk photovoltaic and photorefractive characteristics of iron doped LiNbO R. Grousson;M. Henry;S. Mallick;S. L. Xu
  17. J. Opt. Soc. Am. B v.8 no.3 Optical parametric oscillator frequency tunning and control R.C. Eckardt;C.D. Nabors;W.J. Kozlovsky;R.L. Byer