Improvement of Signal-to-Noise Ratio of Terahertz Electromagnetic Waves by Bias Field Modulation of Photoconductive Antenna
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概要
- 論文の詳細を見る
Inversion of the direction of the DC bias field applied to a photoconductive (PC) antenna produces a terahertz wave with its sign changed. We succeeded in increasing the signal amplitudes of the terahertz electromagnetic waves emitted from a pc antenna by a factor of 2 by modulating the polarization of the bias field applied to the PC antenna in the lock-in detection scheme. By this method, we were able to increase the signal-to-noise ratio of the terahertz electromagnetic waves by a factor of 2.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2006-11-15
著者
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Hattori Toshiaki
Institute For Chemical Reaction Science Tohoku University
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Yano Ryuzi
Muroran Inst. Of Technology
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Shinojima Hiroyuki
NTT MI Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, Kanagawa 243-0198, Japan
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Shinojima Hiroyuki
NTT MI Laboratories, 27-1 Morinosato-Wakamiya, Atsugi, Kanagawa 243-0198, Japan
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