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Enhancement and suppression of terahertz emission by a Fabry-Perot cavity structure with a nonlinear optical crystal

Authors
Shirai, HidetoKishimoto, EijiKokuhata, TatsuyaMiyagawa, HayatoKoshiba, ShyunNakanishi, ShunsukeItoh, HiroshiHangyo, MasanoriKim, Tae GeunTsurumachi, Noriaki
Issue Date
20-Dec-2009
Publisher
OPTICAL SOC AMER
Citation
APPLIED OPTICS, v.48, no.36, pp.6934 - 6939
Indexed
SCIE
SCOPUS
Journal Title
APPLIED OPTICS
Volume
48
Number
36
Start Page
6934
End Page
6939
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/118731
DOI
10.1364/AO.48.006934
ISSN
1559-128X
Abstract
We have fabricated Fabry-Perot (FP) cavities in the THz region with a ZnTe crystal as a cavity layer by a simple stacking method. We observed more than a three times enhancement of the THz emission intensity in the FP cavities compared with the bare ZnTe crystal at the frequencies of the resonant modes and stopband edges. On the other hand, suppression of the THz emission occurs at frequencies in the stopband. The enhancement and suppression of the THz emission are caused by the modification of the optical density of state in the FP cavities compared to the vacuum. (C) 2009 Optical Society of America
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