Discrete Terahertz Beam Steering with an Electrically Controlled Liquid Crystal Device

被引：51

作者：

Scherger, Benedikt ^{[1
]}

Reuter, Marco ^{[1
]}

Scheller, Maik ^{[1
]}

Altmann, Kristian ^{[1
]}

Vieweg, Nico ^{[1
]}

Dabrowski, Roman ^{[2
]}

Deibel, Jason A. ^{[3
]}

Koch, Martin ^{[1
]}

机构：

[1] Univ Marburg, Fachbereich Phys, D-35032 Marburg, Germany

[2] Mil Univ Technol, Inst Chem, PL-00908 Warsaw, Poland

[3] Wright State Univ, Dept Phys, Dayton, OH 45435 USA

来源：

JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES | 2012年 / 33卷 / 11期

关键词：

THz spectroscopy; Quasi-optics; Liquid Crystal (LC); PHOTONIC CRYSTAL; PHASE MODULATOR; SPECTROSCOPY; FIBERS; TRANSMISSION; SWITCH; RANGE; WAVES;

D O I：

10.1007/s10762-012-9927-5

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

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 A degrees. 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.

引用

页码：1117 / 1122

页数：6

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