1. Guided-mode resonance Brewster filters with multiple channels.
- Author
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Wang, Zhanshan, Sang, Tian, Wang, Li, Zhu, Jingtao, Wu, Yonggang, and Chen, Lingyan
- Subjects
- *
FILTERS (Mathematics) , *RESONANCE , *OPTICAL reflection , *REFLECTANCE , *ELECTRIC insulators & insulation - Abstract
In this letter, a type of guided-mode resonance (GMR) reflection filter incorporating multimode resonance and the Brewster effect is presented. Long-range, low sidebands, and multiple channels are found to be obtainable for a single-layer GMR reflection filter with a TM-polarized plane wave incident at the Brewster angle. Detailed characteristics are calculated using rigorous coupled-wave analysis. In our calculation, for TM-polarized incident wave, we find it sufficiently accurate to calculate the effect index by using the zero-order permittivity [variant_greek_epsilon]0,TM of the effective media theory, and narrowband multichannel reflectance can be achieved at the Brewster angle by tuning the grating depth. [ABSTRACT FROM AUTHOR]
- Published
- 2006
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