Abstract

We propose an optical component for widely tunable, narrow-band filtering. It takes advantage of the tunability properties, with respect to the angle of incidence, of guided-mode resonance filters. The intrinsic polarization sensitivity of the resonances is suppressed by exciting the modes through two identical, differently oriented one- dimensional gratings flanking a thick substrate. An example is provided that theoretically shows a polarization independent peak at $\mathrm{1.6}\mathrm{\mu m}$ with a Q factor of 13,000 and a reflectivity greater than 99% at resonance, which is tunable over $100\mathrm{nm}$. Finally, we discuss the fabrication limitations and conclude that the proposed configuration is realistic.

© 2011 Optical Society of America

2 × 1D crossed strongly modulated gratings for polarization independent tunable narrowband transmission filters

A.-L. Fehrembach, K. Sharshavina, F. Lemarchand, E. Popov, A. Monmayrant, P. Arguel, and O. Gauthier-Lafaye
J. Opt. Soc. Am. A 34(2) 234-240 (2017)

Experimental demonstration of 1D crossed gratings for polarization-independent high-Q filtering

A. Monmayrant, S. Aouba, K. Chan Shin Yu, P. Arguel, A.-L. Fehrembach, A. Sentenac, and O. Gauthier-Lafaye
Opt. Lett. 39(20) 6038-6041 (2014)

Demonstration of polarization-independent resonant subwavelength grating filter arrays

D. W. Peters, R. R. Boye, J. R. Wendt, R. A. Kellogg, S. A. Kemme, T. R. Carter, and S. Samora
Opt. Lett. 35(19) 3201-3203 (2010)

Design and characterization of a tunable polarization-independent resonant grating filter

Guido Niederer, Wataru Nakagawa, Hans Peter Herzig, and Hans Thiele
Opt. Express 13(6) 2196-2200 (2005)

Polarization-independent guided-mode resonance filter with cross-integrated waveguide resonators

Kenji Kintaka, Tatsuya Majima, Koji Hatanaka, Junichi Inoue, and Shogo Ura
Opt. Lett. 37(15) 3264-3266 (2012)