Chin. Phys. Lett.  1996, Vol. 13 Issue (7): 523-526    DOI:
Original Articles |
Origin of Self-pumped Phase Conjugate Waves in KNSBN Crystals
ZHANG Liang-min;ZHANG Jing-wen;SHAO Zong-shu;MU Xiao-dong, CHEN Huan-chu;JIANG Min-hua
National Laboratory of Crystal Materials, Shandong University, Jinan 250100
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ZHANG Liang-min, ZHANG Jing-wen, SHAO Zong-shu et al  1996 Chin. Phys. Lett. 13 523-526
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Abstract A multistage four-wave mixing interaction region model resulting in self-pumped phase conjugation output of the incident beam is suggested to explain the experimental observations. The competition between forward and backward two-wave mixing is demonstrated and used to explain the formation of the mechanism. The backscattering beams from random noise beams may be amplified by contradirectional two-wave mixing selectively and act as pumped beams from our experimental observations under a laser entering the negative c face of copper-doped potassium sodium strontium barium niobate crystal. The phase conjugation reflectivity of as high as 33% is measured.


Keywords: 42.65.Hw      42.70.Nq      42.65.–k     
Published: 01 July 1996
PACS:  42.65.Hw (Phase conjugation; photorefractive and Kerr effects)  
  42.70.Nq (Other nonlinear optical materials; photorefractive and semiconductor materials)  
  42.65.–k  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y1996/V13/I7/0523
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ZHANG Liang-min
ZHANG Jing-wen
SHAO Zong-shu
MU Xiao-dong
CHEN Huan-chu
JIANG Min-hua
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