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

Norman Born; Marco Reuter; Martin Koch; Maik Scheller

doi:10.1364/OL.38.000908

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

Norman Born, Marco Reuter, Martin Koch, Maik Scheller

Optical Sciences, College of

Research output: Contribution to journal › Article › peer-review

36 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 language	English (US)
Pages (from-to)	908-910
Number of pages	3
Journal	Optics letters
Volume	38
Issue number	6
DOIs	https://doi.org/10.1364/OL.38.000908
State	Published - Mar 15 2013

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1364/OL.38.000908

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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.",

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AB - 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.

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

Abstract

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