Optical gratings with wavelength and subwavelength structures for optical limiting

Chunfei Li; Guangyu Fang; Luzhong Cai; Hua-Kuang Liu

doi:10.1117/12.326818

13 October 1998 Optical gratings with wavelength and subwavelength structures for optical limiting

Chunfei Li, Guangyu Fang, Luzhong Cai, Hua-Kuang Liu

Proceedings Volume 3467, Far- and Near-Field Optics: Physics and Information Processing; (1998) https://doi.org/10.1117/12.326818
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1998, San Diego, CA, United States

Abstract

We propose a set of novel optical limiters by sandwiching index-matched nonlinear liquid between a glass plate and a relief grating. Strong light beams can change the index of the liquid to induce index mismatch and reactivate grating to diffract, reflect or evanesce most of the output light away to protect eyes or sensor. In this paper, different gratings for the use of optical limiting including diffraction gratings, total-reflection gratings and sub- wavelength gratings are analyzed and compared.

Citation Download Citation

Chunfei Li, Guangyu Fang, Luzhong Cai, and Hua-Kuang Liu "Optical gratings with wavelength and subwavelength structures for optical limiting", Proc. SPIE 3467, Far- and Near-Field Optics: Physics and Information Processing, (13 October 1998); https://doi.org/10.1117/12.326818

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