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

Fehrembach Anne-Laure 1 Ksenia Sharshavina 2 Fabien Lemarchand 3 Evgeny Popov 1 Antoine Monmayrant 2 Philippe Arguel 2 Olivier Gauthier-Lafaye 2
1 CLARTE - CLARTE
FRESNEL - Institut FRESNEL
2 LAAS-PHOTO - Équipe Photonique
LAAS - Laboratoire d'analyse et d'architecture des systèmes [Toulouse]
3 RCMO - RCMO
FRESNEL - Institut FRESNEL
Abstract : We design a narrowband polarization independent transmission guided mode resonance filter whose center wavelength is tunable with respect to the angle of incidence. The device is composed of two identical structures assembled back to back. Each half structure is a dielectric multilayer stack in which a grating is engraved. This so-called 2×1D crossed gratings component has already been demonstrated for reflection filtering [Opt. Lett. 36, 1662 (2011) [CrossRef] ; Opt. Lett. 39, 6038 (2014) [CrossRef] ]. The functioning in transmission requires the use of a high index material for the grating bumps. For the design, we resort to a clustering global optimization algorithm, used for the first time to our knowledge for grating structures. We demonstrated two filters with a quality factor of about 4000, tunable over more than 15 nm when the angle of incidence varies over a range of 4°, and with a transmittivity at resonance greater than 95% whatever the incident polarization.
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Journal articles
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https://hal.archives-ouvertes.fr/hal-01472657
Contributor : Anne-Laure Fehrembach <>
Submitted on : Tuesday, February 21, 2017 - 10:28:22 AM
Last modification on : Monday, April 29, 2019 - 4:07:21 PM

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Fehrembach Anne-Laure, Ksenia Sharshavina, Fabien Lemarchand, Evgeny Popov, Antoine Monmayrant, et al.. 2 × 1D crossed strongly modulated gratings for polarization independent tunable narrowband transmission filters. Journal of the Optical Society of America. A, Optics and image science, Optical Society of America, 2017, 34 (2), pp.234-240. ⟨10.1364/JOSAA.34.000234⟩. ⟨hal-01472657⟩

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