Abstract
A narrowband filter with two reflection peaks anda single transmission peak is proposed based on a multilayer heterostructure containing two different ultrathin metallic films. The heterostructure filter is formed by cascading two narrowband reflection-and-transmission filters. We use the transfer matrix method to calculate the optical reflectance, transmittance, and absorptance for this filter. Results show that the heterostructure has a pronounced effect on the reflectance,leading to two resonant peaks. The angular dependence of filtering properties is also investigated.This filter is of practical use in the optical signal processing.
| Original language | English |
|---|---|
| Pages (from-to) | 268-272 |
| Number of pages | 5 |
| Journal | Journal of Optoelectronics and Advanced Materials |
| Volume | 13 |
| Issue number | 3 |
| Publication status | Published - 2011 Mar |
Keywords
- Heterostructures
- Narrowband filters
- Transfer matrix method
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering