Metallic nano-structures for polarizationindependent multi-spectral filters

Yongan Tang, Branislav Vlahovic, David Jones Brady

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


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.

Original languageEnglish (US)
Article number394
Pages (from-to)1-7
Number of pages7
JournalNanoscale Research Letters
StatePublished - 2011
Externally publishedYes

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics


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