Polarization-sensitive terahertz detection by multicontact photoconductive receivers

被引：122

作者：

Castro-Camus, E

Lloyd-Hughes, J

Johnston, MB

Fraser, MD

Tan, HH

Jagadish, C

机构：

[1] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England

[2] Australian Natl Univ, Dept Elect Mat Engn, Res Sch Phys Sci & Engn, Inst Adv Studies, Canberra, ACT 0200, Australia

来源：

APPLIED PHYSICS LETTERS | 2005年 / 86卷 / 25期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1063/1.1951051

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have developed a terahertz radiation detector that measures both the amplitude and polarization of the electric field as a function of time. The device is a three-contact photoconductive receiver designed so that two orthogonal electric-field components of an arbitrary polarized electromagnetic wave may be detected simultaneously. The detector was fabricated on Fe+ ion-implanted InP. Polarization-sensitive detection is demonstrated with an extinction ratio better than 100:1. This type of device will have immediate application in studies of birefringent and optically active materials in the far-infrared region of the spectrum. (c) 2005 American Institute of Physics.

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页码：1 / 3

页数：3

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