Noise Reduction in Photorefractive Image Amplification by Contradirectional Two-Wave Mixing in Rh-Doped BaTiO3 Crystal
XU Xin-Guang1 , MU Xiao-Dong1 , SHAO Zong-Shu1 , DU Chen-Lin1 , JIANG Min-Hua1 , LUO Hao-Su2 , XU Hai-Qing2
1 State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100
2 Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800
Noise Reduction in Photorefractive Image Amplification by Contradirectional Two-Wave Mixing in Rh-Doped BaTiO3 Crystal
XU Xin-Guang1 ;MU Xiao-Dong1 ;SHAO Zong-Shu1 ;DU Chen-Lin1 ;JIANG Min-Hua1 ;LUO Hao-Su2 ;XU Hai-Qing2
1 State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100
2 Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800
关键词 ：
42.65.Hw ,
42.70.Nq ,
42.79.-e
Abstract ： Low noise image amplification owing to contradirectional two-wave mixing (CTWM) is proposed and demonstrated in Rh-doped BaTiO3 crystal. Comparing with the conventional forward two-wave mixing scheme, an enhancement of signal-to-noise ratio in the order of 103 is obtained. The theoretical analyses are presented and give a reasonable explanation for the experimental results. The further discussion shows that CTWM scheme can also reduce the influence of the crystal absorption and crystal size on the two-wave mixing process to rise the signal beam gain.
Key words ：
42.65.Hw
42.70.Nq
42.79.-e
出版日期: 2000-07-01
:
42.65.Hw
(Phase conjugation; photorefractive and Kerr effects)
42.70.Nq
(Other nonlinear optical materials; photorefractive and semiconductor materials)
42.79.-e
(Optical elements, devices, and systems)
引用本文:
XU Xin-Guang;MU Xiao-Dong;SHAO Zong-Shu;DU Chen-Lin;JIANG Min-Hua;LUO Hao-Su;XU Hai-Qing
. Noise Reduction in Photorefractive Image Amplification by Contradirectional Two-Wave Mixing in Rh-Doped BaTiO3 Crystal[J]. 中国物理快报, 2000, 17(7): 507-509.
3 Crystal. Chin. Phys. Lett., 2000, 17(7): 507-509.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2000/V17/I7/507
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