Ultra-Broadband Terahertz Wave Detection Using Photoconductive Antenna

被引：31
|
作者：
Ashida, Masaaki [1 ,2 ]
机构：
[1] Osaka Univ, Grad Sch Engn Sci, Osaka 5608531, Japan
[2] Japan Sci & Technol Agcy, PRESTO, Kawaguchi, Saitama 3320012, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS | 2008年 / 47卷 / 10期
关键词：
terahertz wave; time domain spectroscopy; photoconductive antenna; ultrabroadband detection; GaSe;
D O I：
10.1143/JJAP.47.8221
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We demonstrated the ultra-broadband detection of terahertz electric field in the frequency range from 0.1 to 100 THz with a photoconductive antenna and an ultrashort pulsed laser with a pulse duration of approximately 10fs. Ultra-broadband THz pulses were generated with a thin GaSe crystal or a photoconductive antenna emitter. The spectral sensitivity of the photoconductive antenna detection was examined in the mid-infrared region. We also demonstrated and efficient acquisition method based on the fast scanning of an optical delay line. [DOI: 10.1143/JJAP.47.8221]
引用
收藏
页码：8221 / 8225
页数：5
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