NOVEL TERAHERTZ PHOTOCONDUCTIVE ANTENNAS

被引:0
|
作者
Masahiko Tani
Yuichi Hirota
Christopher T. Que
Shigehisa Tanaka
Ryo Hattori
Mariko Yamaguchi
Seizi Nishizawa
Masanori Hangyo
机构
[1] Osaka University,Institute of Laser Engineering
[2] Hitachi Ltd,Central Research Laboratory
[3] Mitsubishi Electric Corp.,Advanced Technology R&D Center
[4] Aispec: Advanced Infrared Spectroscopy Co.,undefined
[5] Ltd.,undefined
关键词
Terahertz radiation; photoconductive antennas; Schottky contact; rectification effect; multi-contacts; polarization modulation;
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中图分类号
学科分类号
摘要
The photoconductive (PC) antenna is a key device for the recent terahertz (THz) photonics based on laser-pumped generation and detection of THz radiation. In this paper we report on two new types of PC antennas: the Schottky PC antenna and the multi-contacts PC antenna. The former one is able to detect THz radiation intensity without the time-delay scan and useful for applications where spectroscopic information is not important, such as the THz intensity imaging. The latter one is useful for the polarization sensitive THz spectroscopy, such as the THz ellipsometry. The characteristic features of these new types of PC antennas are studied by using a THz time-domain spectroscopy system.
引用
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页码:531 / 546
页数:15
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