Discrete Terahertz Beam Steering with an Electrically Controlled Liquid Crystal Device

被引：0
|
作者：
Benedikt Scherger
Marco Reuter
Maik Scheller
Kristian Altmann
Nico Vieweg
Roman Dabrowski
Jason A. Deibel
Martin Koch
机构：
[1] Philipps Universität Marburg,Fachbereich Physik
[2] Military University of Technology,Institute of Chemistry
[3] Wright State University,Department of Physics
来源：
Journal of Infrared, Millimeter, and Terahertz Waves | 2012年 / 33卷
关键词：
THz spectroscopy; Quasi-optics; Liquid Crystal (LC);
D O I：
暂无
中图分类号：
学科分类号：
摘要：
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.
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页码：1117 / 1122
页数：5
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