Self-focusing difference frequency grating filter

Xianming Ji; Renwang Mu; Liangkai Han; Jin Zhou; Wenqi Guo

doi:10.1117/12.483250

16 September 2002 Self-focusing difference frequency grating filter

Xianming Ji, Renwang Mu, Liangkai Han, Jin Zhou, Wenqi Guo

Proceedings Volume 4929, Optical Information Processing Technology; (2002) https://doi.org/10.1117/12.483250
Event: Photonics Asia, 2002, Shanghai, China

Abstract

A phase type optical image differential filter made by binary optical method is presented in this paper. It combines two phase type Ronchi gratings which have close frequency with off-axis phase-Fresnel-zone plate, called self-focusing differential frequency grating filter. It has several advantages such as high diffraction efficiency, simple optical path and convenient operation.

Citation Download Citation

Xianming Ji, Renwang Mu, Liangkai Han, Jin Zhou, and Wenqi Guo "Self-focusing difference frequency grating filter", Proc. SPIE 4929, Optical Information Processing Technology, (16 September 2002); https://doi.org/10.1117/12.483250

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