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

Hideto Shirai, Eiji Kishimoto, Tatsuya Kokuhata, Hayato Miyagawa, Shyun Koshiba, Shunsuke Nakanishi, Hiroshi Itoh, Masanori Hangyo, Tae Geun Kim, Noriaki Tsurumachi

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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.

Original languageEnglish
Pages (from-to)6934-6939
Number of pages6
JournalApplied Optics
Volume48
Issue number36
DOIs
Publication statusPublished - 2009 Dec 20

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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    Shirai, H., Kishimoto, E., Kokuhata, T., Miyagawa, H., Koshiba, S., Nakanishi, S., Itoh, H., Hangyo, M., Kim, T. G., & Tsurumachi, N. (2009). Enhancement and suppression of terahertz emission by a Fabry-Perot cavity structure with a nonlinear optical crystal. Applied Optics, 48(36), 6934-6939. https://doi.org/10.1364/AO.48.006934