Chinese Journal of Lasers, Volume. 23, Issue 2, 177(1996)
Image Enhancement by Using a photorefractive Crystal Cu:KNSBN
The enhancement processing is performed by using a photorefractive crystal Cu:KNSBN placed on the Fourier transform plane of a coherent system under,cettain conditions. A Leplacian operator is formed on the transform plane because of the phase conjugation effect inside the crystal. Experimental result and a brief theoretical analysis are presented.
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[in Chinese]. Image Enhancement by Using a photorefractive Crystal Cu:KNSBN[J]. Chinese Journal of Lasers, 1996, 23(2): 177