Please wait a minute...
Chinese Physics, 2004, Vol. 13(9): 1464-1467    DOI: 10.1088/1009-1963/13/9/018
CLASSICAL AREAS OF PHENOMENOLOGY Prev   Next  

Light-induced scattering in SBN:Cr crystal under external electric fields and its suppression

Zhao Jian-Lin (赵建林), Li Zhen-Wei (李振伟), Yang De-Xing (杨德兴), Ma Yang-Hua (马仰华)
Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, China
Abstract  In this paper, the enhancement of light-induced scattering in congruent SBN:Cr (Sr$_{0.61}$Ba$_{0.39}$Nb$_2$O$_6$:Cr) crystals in the presence of an externally applied electric field and its suppression are studied. If a coherent image is focalized in SBN:Cr crystal without applying external electric field, the output image will remain clear, because of the weak photorefractive effect in the crystal. When a field is applied properly along the crystal axis, markedly enhanced scattering from the signal beam and the output image dispersion can be observed due to the increase of the photorefractive two-beam coupling gain and the light-induced index change in SBN:Cr crystals. By introducing a coherent or incoherent beam with higher intensity the light-induced scattering can be suppressed through the erasure of scattering gratings. The difference between coherent and incoherent beam is that the former can also amplify the signal beam as the scattered light is removed, whereas the latter can only make the signal beam revert to its initial state. The results obtained under different experimental conditions are consistent with theoretical analysis.
Keywords:  light-induced scattering      SBN:Cr crystal      external electric field      photorefractive two-beam coupling  
Received:  28 August 2003      Revised:  27 November 2003      Accepted manuscript online: 
PACS:  42.25.Fx (Diffraction and scattering)  
  42.65.Hw (Phase conjugation; photorefractive and Kerr effects)  
  42.70.Mp (Nonlinear optical crystals)  
  42.70.Nq (Other nonlinear optical materials; photorefractive and semiconductor materials)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No 60077018).

Cite this article: 

Zhao Jian-Lin (赵建林), Li Zhen-Wei (李振伟), Yang De-Xing (杨德兴), Ma Yang-Hua (马仰华) Light-induced scattering in SBN:Cr crystal under external electric fields and its suppression 2004 Chinese Physics 13 1464

[1] Band alignment in SiC-based one-dimensional van der Waals homojunctions
Xing-Yi Tan(谭兴毅), Lin-Jie Ding(丁林杰), and Da-Hua Ren(任达华). Chin. Phys. B, 2021, 30(12): 126102.
[2] Tunable electronic structures of germanane/antimonene van der Waals heterostructures using an external electric field and normal strain
Xing-Yi Tan(谭兴毅), Li-Li Liu(刘利利), Da-Hua Ren(任达华). Chin. Phys. B, 2020, 29(7): 076102.
[3] Saturated sodium chloride solution under an external static electric field: A molecular dynamics study
Ren Gan (任淦), Wang Yan-Ting (王延颋). Chin. Phys. B, 2015, 24(12): 126402.
[4] Electric field-induced hole injection-enhanced photoluminescence in a N,N'-bis(3-methylphenyl)-N,N'-bis(phenyl)-benzidine-based emitter
Xu-Xie Hui-Na (许谢慧娜), Li Wen-Bin (李文彬), Peng Huan (彭欢), He Yun (何鋆), Yu Hao-Miao (于浩淼), Hou Xiao-Yuan (侯晓远). Chin. Phys. B, 2014, 23(4): 047202.
[5] Molecular properties and potential energy function model of BH under external electric field
Wu Dong-Lan (伍冬兰), Tan Bin (谭彬), Wan Hui-Jun (万慧军), Zhang Xin-Qin (张新琴), Xie An-Dong (谢安东). Chin. Phys. B, 2013, 22(12): 123101.
[6] Properties of a Si2N molecule under an external electric field
Xu Guo-Liang(徐国亮), Xie Hui-Xiang(谢会香), Yuan Wei(袁伟), Zhang Xian-Zhou(张现周), and Liu Yu-Fang(刘玉芳) . Chin. Phys. B, 2012, 21(5): 053101.
[7] Effect of vacancy defect on electrical properties of chiral single-walled carbon nanotube under external electrical field
Luo Yu-Pin(罗煜聘), Tien Li-Gan(田力耕), Tsai Chuen-Horng(蔡春鸿), Lee Ming-Hsien(李明宪), and Li Feng-Yin(李丰颖). Chin. Phys. B, 2011, 20(1): 017302.
[8] Influence of spin-orbit coupling induced by in-plane external electric field on the intrinsic spin-Hall effect in a Rashba two-dimensional electron gas
Yan Yu-Zhen(颜玉珍) and Hu Liang-Bin(胡梁宾). Chin. Phys. B, 2010, 19(4): 047203.
[9] Si2O2 molecule: structure of ground state and the excited properties under different external electric fields
Xu Guo-Liang(徐国亮), Liu Xue-Feng (刘雪峰), Xie Hui-Xiang(谢会香), Zhang Xian-Zhou(张现周), and Liu Yu-Fang(刘玉芳). Chin. Phys. B, 2010, 19(11): 113101.
[10] Dissipationless spin-Hall current contribution in the extrinsic spin-Hall effect
Yan Yu-Zhen(颜玉珍), Li Hui-Wu(李辉武), and Hu Liang-Bin(胡梁宾). Chin. Phys. B, 2009, 18(7): 2981-2987.
[11] Improvement in refractive-index change in LiNbO3:Ce:Cu by applying an external electric field
Dai Cui-Xia (戴翠霞), Liu Li-Ren (刘立人), Liu De-An (刘德安), Zhou Yu (周煜), Chai Zhi-Fang (柴志方), Luan Zhu (栾竹). Chin. Phys. B, 2005, 14(12): 2491-2495.
[12] INVESTIGATION OF PHOTOREFRACTIVE TWO-WAVE COUPLING IN Cr-DOPED STRONTIUM BARIUM NIOBATE CRYSTAL
Zhao Jian-lin (赵建林), Wang Bin (王彬), Wu Jian-jun (吴建军), Yang De-xing (杨德兴), S. Kapphan, R. Pankrath. Chin. Phys. B, 2001, 10(8): 739-742.
No Suggested Reading articles found!