We evaluate the effect of finite aperture gratings on the spectral and efficiency characteristics of guided-mode resonance filters. A simple analytical model based on the attenuation properties of the waveguide and a fixed length of the grating aperture is developed. The results from this model are in good agreement with experimental filters formed with subwavelength period photoresist gratings and solgel waveguides.
|Original language||English (US)|
|Number of pages||5|
|Publication status||Published - Jul 20 2000|
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics