Title | Metallic nano-structures for polarization-independent multi-spectral filters. |
Publication Type | Journal Article |
Year of Publication | 2011 |
Authors | Y Tang, B Vlahovic, and DJ Brady |
Journal | Nanoscale Research Letters |
Volume | 6 |
Issue | 1 |
Start Page | 394 |
Date Published | 05/2011 |
Abstract | Cross-shaped-hole arrays (CSHAs) are selected for diminishing the polarization-dependent transmission differences of incident plane waves. We investigate the light transmission spectrum of the CSHAs in a thin gold film over a wide range of features. It is observed that two well-separated and high transmission efficiency peaks could be obtained by designing the parameters in the CSHAs for both p-polarized and s-polarized waves; and a nice transmission band-pass is also observed by specific parameters of a CSHA too. It implicates the possibility to obtain a desired polarization-independent transmission spectrum from the CSHAs by designing their parameters. These findings provide potential applications of the metallic nano-structures in optical filters, optical band-pass, optical imaging, optical sensing, and biosensors. |
DOI | 10.1186/1556-276x-6-394 |
Short Title | Nanoscale Research Letters |