14 May 2010 High Q polarization independent guided mode resonance filters with doubly periodic etched Ta2O5 bi-dimensional grating
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Abstract
We explain how to design a high Q, polarization independent, angularly tolerant filter, with a "doubly periodic" resonant grating etched in a high index material. Thanks to its broad angular acceptance, the fabricated component shows a Q factor of 5600 with a 580μm diameter Gaussian beam. Performing a detailed theoretical and experimental comparative study, we identify the parameters responsible for the degradation of the performances of the filter.
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Anne-Laure Fehrembach, Anne-Laure Fehrembach, Fabien Lemarchand, Fabien Lemarchand, Anne Talneau, Anne Talneau, Anne Sentenac, Anne Sentenac, "High Q polarization independent guided mode resonance filters with doubly periodic etched Ta2O5 bi-dimensional grating", Proc. SPIE 7717, Optical Modelling and Design, 771702 (14 May 2010); doi: 10.1117/12.854884; https://doi.org/10.1117/12.854884
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