Edge-enhanced correlation with four-wave mixing in bismuth silicon oxide crystal by use of moving gratings.
The nonlinearity of phase-conjugate beam reflection with four-wave mixing in bismuth silicon oxide crystal by use of moving gratings at large fringe modulation formed by the incident-beam ratio is investigated. On the basis of this investigation, the edge enhancement of an object and the edge-enhanced optical correlation with improved discrimination capability are achieved by use of moving gratings at an appropriate fringe velocity. Experimental results are presented.
Wang
Z
Z
Opto-electronic Information Science and Technology Laboratory, Institute of Modern Optics, Nankai University, Tianjin 300071, China. wangzq@nankai.edu.cn
Guan
J
J
Liang
B
B
Mu
G
G