Guided-mode resonance filters with shallow grating

Abstract

A shallow grating triple-layer guided-mode resonance (GMR) filter and its properties are presented. For this type of GMR filter, the grating layer has the equal refractive index to the waveguide layer. It is shown that the GMR filter with shallow grating has good characteristics of narrow bandwidth, symmetrical line shape, and low-reflection sideband. The spectral FWHM of the GMR filter can be controlled by varying the grating thickness. The desired FWHM at the same resonance wavelength with symmetrical line shape and low-reflection sideband can be obtained by adjusting the grating thickness and the grating period with the total thickness of the grating and waveguide layers kept unchanged.

© 2010 Optical Society of America

Guided-mode resonance filter with high-index substrate

Wenxing Liu, Hong Chen, and Zhenquan Lai
Opt. Lett. 37(22) 4648-4650 (2012)

Nonpolarizing guided-mode resonance filter

Xiaoyong Fu, Kui Yi, Jianda Shao, and Zhengxiu Fan
Opt. Lett. 34(2) 124-126 (2009)

Controlling the spectral response in guided-mode resonance filter design

Samuel T. Thurman and G. Michael Morris
Appl. Opt. 42(16) 3225-3233 (2003)

Guided-mode resonance Brewster filter

R. Magnusson, D. Shin, and Z. S. Liu
Opt. Lett. 23(8) 612-614 (1998)

Silicon-based and suspended-membrane-type guided-mode resonance filters with a spectrum-modifying layer design

Mount-Learn Wu, Che-Lung Hsu, Yung-Chih Liu, Chih-Ming Wang, and Jenq-Yang Chang
Opt. Lett. 31(22) 3333-3335 (2006)