High-Q terahertz bandpass filters based on coherently interfering metasurface reflections

Norman Born, Marco Reuter, Martin Koch, Maik Scheller

Research output: Contribution to journalArticle

25 Scopus citations

Abstract

We present compact and easy-to-realize terahertz bandpass filters with Q values in the order of 500. The filters are based on coherently interfering reflections from two parallel metasurfaces applied to the boundaries of a semiconductor disk. By changing the thickness of the semiconductor disk and the dimensions of the metasurface structures, the filter can be optimized for various terahertz frequencies. Moreover, a precise tuning of the resonance frequency is possible via the temperature of the structure or its angle with respect to the propagation direction.

Original languageEnglish (US)
Pages (from-to)908-910
Number of pages3
JournalOptics letters
Volume38
Issue number6
DOIs
StatePublished - Mar 15 2013

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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