Alternating high-voltage biasing for terahertz large-area photoconductive emitters

被引：9
|
作者：
Turton, David A. [1 ]
Welsh, Gregor H.
Carey, John J.
Reid, Gavin D.
Beddard, Godfrey S.
Wynne, Klaas
机构：
[1] Univ Strathclyde, Dept Phys, SUPA, Glasgow G4 0NG, Lanark, Scotland
[2] Univ Leeds, Dept Chem, Leeds LS2 9JT, W Yorkshire, England
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 2006年 / 77卷 / 08期
基金：
英国工程与自然科学研究理事会;
关键词：
D O I：
10.1063/1.2336764
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
High-voltage biasing is necessary for efficient generation of terahertz radiation using large-area photoconductive emitters and for electric-field-oriented charge-transfer studies. Coherent detection of terahertz pulses allows ac biasing to be the basis of modulation for lock-in detection. Biasing emitters with an ac field also removes the need for a complete conduction path. The experimental advantages of this approach along with a simple resonant method of generating the high-voltage bias applicable to higher-repetition-rate (up to a few hundred kilohertz) regeneratively amplified systems are described. (c) 2006 American Institute of Physics.
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页数：5
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