Discrete terahertz beam steering with an electrically controlled liquid crystal device

Benedikt Scherger; Marco Reuter; Maik Scheller; Kristian Altmann; Nico Vieweg; Roman Dabrowski; Jason A. Deibel; Martin Koch

doi:10.1007/s10762-012-9927-5

Discrete terahertz beam steering with an electrically controlled liquid crystal device

Benedikt Scherger, Marco Reuter, Maik Scheller, Kristian Altmann, Nico Vieweg, Roman Dabrowski, Jason A. Deibel, Martin Koch

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

55 Scopus citations

Abstract

We present an electronic beam switching/steering device for operation at THz frequencies. The propagation direction of the THz beam is switched via electronic manipulation of the refractive index of a liquid crystal. The design of the steering device and the parameters of the liquid crystal are described and angle-dependent THz-TDS measurements of the beam steering are reported. This device is able to deflect the propagation direction of the THz beam by 6.3 °. This particular device approach offers a viable option for beam steering/switching in various THz applications including fiber switches, scanning imagers, and free-space communication systems in which the detector or emitter is in motion.

Original language	English (US)
Pages (from-to)	1117-1122
Number of pages	6
Journal	Journal of Infrared, Millimeter, and Terahertz Waves
Volume	33
Issue number	11
DOIs	https://doi.org/10.1007/s10762-012-9927-5
State	Published - Nov 2012
Externally published	Yes

Keywords

Liquid crystal (LC)
Quasi-optics
THz spectroscopy

ASJC Scopus subject areas

Radiation
Instrumentation
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1007/s10762-012-9927-5

Cite this

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title = "Discrete terahertz beam steering with an electrically controlled liquid crystal device",

abstract = "We present an electronic beam switching/steering device for operation at THz frequencies. The propagation direction of the THz beam is switched via electronic manipulation of the refractive index of a liquid crystal. The design of the steering device and the parameters of the liquid crystal are described and angle-dependent THz-TDS measurements of the beam steering are reported. This device is able to deflect the propagation direction of the THz beam by 6.3 °. This particular device approach offers a viable option for beam steering/switching in various THz applications including fiber switches, scanning imagers, and free-space communication systems in which the detector or emitter is in motion.",

keywords = "Liquid crystal (LC), Quasi-optics, THz spectroscopy",

author = "Benedikt Scherger and Marco Reuter and Maik Scheller and Kristian Altmann and Nico Vieweg and Roman Dabrowski and Deibel, {Jason A.} and Martin Koch",

note = "Funding Information: Acknowledgments Benedikt Scherger acknowledges financial support from the Friedrich Ebert Stiftung. Nico Vieweg likes to express his appreciation to the Studienstiftung des deutschen Volkes.",

year = "2012",

month = nov,

doi = "10.1007/s10762-012-9927-5",

language = "English (US)",

volume = "33",

pages = "1117--1122",

journal = "Journal of Infrared, Millimeter, and Terahertz Waves",

issn = "1866-6892",

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T1 - Discrete terahertz beam steering with an electrically controlled liquid crystal device

AU - Scherger, Benedikt

AU - Reuter, Marco

AU - Scheller, Maik

AU - Altmann, Kristian

AU - Vieweg, Nico

AU - Dabrowski, Roman

AU - Deibel, Jason A.

AU - Koch, Martin

N1 - Funding Information: Acknowledgments Benedikt Scherger acknowledges financial support from the Friedrich Ebert Stiftung. Nico Vieweg likes to express his appreciation to the Studienstiftung des deutschen Volkes.

PY - 2012/11

Y1 - 2012/11

N2 - We present an electronic beam switching/steering device for operation at THz frequencies. The propagation direction of the THz beam is switched via electronic manipulation of the refractive index of a liquid crystal. The design of the steering device and the parameters of the liquid crystal are described and angle-dependent THz-TDS measurements of the beam steering are reported. This device is able to deflect the propagation direction of the THz beam by 6.3 °. This particular device approach offers a viable option for beam steering/switching in various THz applications including fiber switches, scanning imagers, and free-space communication systems in which the detector or emitter is in motion.

AB - We present an electronic beam switching/steering device for operation at THz frequencies. The propagation direction of the THz beam is switched via electronic manipulation of the refractive index of a liquid crystal. The design of the steering device and the parameters of the liquid crystal are described and angle-dependent THz-TDS measurements of the beam steering are reported. This device is able to deflect the propagation direction of the THz beam by 6.3 °. This particular device approach offers a viable option for beam steering/switching in various THz applications including fiber switches, scanning imagers, and free-space communication systems in which the detector or emitter is in motion.

KW - Liquid crystal (LC)

KW - Quasi-optics

KW - THz spectroscopy

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U2 - 10.1007/s10762-012-9927-5

DO - 10.1007/s10762-012-9927-5

M3 - Article

AN - SCOPUS:84868624718

SN - 1866-6892

VL - 33

SP - 1117

EP - 1122

JO - Journal of Infrared, Millimeter, and Terahertz Waves

JF - Journal of Infrared, Millimeter, and Terahertz Waves

IS - 11

ER -

Discrete terahertz beam steering with an electrically controlled liquid crystal device

Abstract

Keywords

ASJC Scopus subject areas

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