Enhancement transmission filter using a two-dimensional subwavelength periodic membrane
Abstract
Enhancement transmission filter using a two-dimensional (2-D) subwavelength periodic membrane is proposed. It can be found that strong refractive-index modulation of the silicon periodic membrane can support the excitation of multiple guided-mode resonances (GMRs) in a reflection band, and every GMR relates a transmission peak on its edge, therefore the overlapping of the edges of these resonances can be tailored to create enhancement transmission. Thelocation of the transmission peak is shifted linearly with a slop of 1.51 as the period is varied. Enhancement transmission with multiple channels near 1310 nm can also be achieved using the interaction of the nondegenerate GMRs at oblique incidence.
- Publication:
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Journal of Physics Conference Series
- Pub Date:
- June 2017
- DOI:
- 10.1088/1742-6596/844/1/012006
- Bibcode:
- 2017JPhCS.844a2006Z