Guided-mode resonance Brewster filter

被引:103
作者
Magnusson, R [1 ]
Shin, D [1 ]
Liu, ZS [1 ]
机构
[1] Univ Texas, Dept Elect Engn, Arlington, TX 76019 USA
关键词
D O I
10.1364/OL.23.000612
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A new type of optical filter is predicted theoretically and verified experimentally. The filter operates under guided-mode resonance conditions in a thin-film waveguide grating. A high-efficiency reflection filter response is produced at the Brewster angle at which TM reflection is classically prohibited. Low-reflectance sidebands are obtained that are adjacent to the resonance peak induced by the Brewster effect in the neighborhood of the resonance peak. A double-layer waveguide grating yields 94% experimental reflectance at the thin-film Brewster angle for a Gaussian laser beam with TM polarization at the 1064-nm wavelength. (C) 1998 Optical Society of America.
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页码:612 / 614
页数:3
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