Linear Variable Filter Based on a Gradient Grating Period Guided-Mode Resonance Filter

Hsin An Lin, Cheng-Sheng Huang

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37 Scopus citations

Abstract

In this letter, we fabricated and characterized a linear variable filter based on a guided-mode resonance filter (GMRF) with gradient grating periods. The GMRF was first fabricated through nanoreplica molding on a plastic substrate, which was followed by the deposition of a thin TiO2 film. The grating periods of the GMRF vary from 250 to 550 nm with a 2-nm increment in each period consisting of 100 cycles. The results show that a 6-mm-long GMRF has a filtering range of 506-915 nm.

Original languageEnglish
Article number7397899
Pages (from-to)1042-1045
Number of pages4
JournalIEEE Photonics Technology Letters
Volume28
Issue number9
DOIs
StatePublished - 1 May 2016

Keywords

  • Bandstop filter
  • guided-mode resonance
  • Subwavelength nanostructure

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