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High-order modes in cavity-resonator-integrated guided-mode resonance filters (CRIGFs)

Abstract : Cavity-resonator-integrated guided-mode resonance filters (CRIGFs) are optical filters based on weak coupling by a grating between a free-space propagating optical mode and a guided mode, like guided-mode resonance filters (GMRFs). As compared to GMRFs they offer narrowband reflection with small aperture and high angular acceptance. We report experimental characterization and theoretical modeling of unexpected high-order reflected modes in such devices. Using coupled-mode modeling and moiré analysis we provide physical insight on key mechanisms ruling CRIGF properties. This model could serve as a simple and efficient framework to design new reflectors with tailored spatial and spectral modal reflectivities.
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https://hal.laas.fr/hal-01929785
Contributor : Henri Camon <>
Submitted on : Wednesday, November 21, 2018 - 2:06:52 PM
Last modification on : Friday, January 10, 2020 - 9:10:14 PM

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Romain Laberdesque, Olivier Gauthier-Lafaye, Henri Camon, Antoine Monmayrant, M. Petit, et al.. High-order modes in cavity-resonator-integrated guided-mode resonance filters (CRIGFs). Journal of the Optical Society of America. A Optics, Image Science, and Vision, Optical Society of America, 2015, 32 (11), pp.1973-1981. ⟨10.1364/JOSAA.32.001973⟩. ⟨hal-01929785⟩

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