Abstract

In this work, a single-layer, multiple-channel guided mode resonance (GMR) Brewster filter with controllable spectral separation is proposed using the plane waveguide method and rigorous coupled-wave analysis. Based on the normalized eigenvalue equation, the controllability of the spectral separation is analyzed when the fill ratio of the grating layer is changed while its effective index is identical to that of the substrate. The location and the separation between resonances can be specifically controlled by modifying the fill ratio of the grating layer. In contrast to the ordinary GMR filter, where the location of the resonances is material dependent, it is demonstrated that the spectral separation for the first and second resonances can be linearly controlled by altering the fill ratio of the grating layer. In addition, the maximal shift of the second resonance is up to 5% of the first resonant wavelength using the single-layer Brewster filter.

© 2014 Optical Society of America

Triple-layer guided-mode resonance Brewster filter consisting of a homogenous layer and coupled gratings with equal refractive index

Xin Liu, Shuqi Chen, Weiping Zang, and Jianguo Tian
Opt. Express 19(9) 8233-8241 (2011)

Guided-mode resonance Brewster filter

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

Multiline two-dimensional guided-mode resonant filters

Sakoolkan Boonruang, Andrew Greenwell, and M. G. Moharam
Appl. Opt. 45(22) 5740-5747 (2006)

Controlling the spectral response in guided-mode resonance filter design

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

Resonant Brewster filters with absentee layers

D. Shin, Z. S. Liu, and R. Magnusson
Opt. Lett. 27(15) 1288-1290 (2002)