Guided-mode resonant subwavelength gratings: effects of finite beams and finite gratings
- 1 August 2001
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America A
- Vol. 18 (8) , 1912-1928
- https://doi.org/10.1364/josaa.18.001912
Abstract
The effects of finite beams and finite gratings on the performance of guided-mode resonant subwavelength gratings are characterized by using the rigorous boundary element method. The gratings are strongly modulated, have a finite number of periods, and are illuminated by normally incident Gaussian beams. Quantitative results are presented for silicon-on-sapphire resonant gratings and gallium arsenide–aluminum arsenide resonant gratings.Keywords
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