Enhancement and suppression of terahertz emission by a Fabry-Perot cavity structure with a nonlinear optical crystal
Applied Optics, Vol. 48, Issue 36, pp. 6934-6939 (2009)
http://dx.doi.org/10.1364/AO.48.006934
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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.
© 2009 Optical Society of America
OCIS Codes
(140.3948) Lasers and laser optics : Microcavity devices
(300.6495) Spectroscopy : Spectroscopy, teraherz
ToC Category:
Spectroscopy
History
Original Manuscript: September 14, 2009
Manuscript Accepted: November 13, 2009
Published: December 11, 2009
Citation
Hideto Shirai, Eiji Kishimoto, Tatsuya Kokuhata, Hayato Miyagawa, Shyun Koshiba, Shunsuke Nakanishi, Hiroshi Itoh, Masanori Hangyo, Tae Geun Kim, and Noriaki Tsurumachi, "Enhancement and suppression of terahertz emission by a Fabry-Perot cavity structure with a nonlinear optical crystal," Appl. Opt. 48, 6934-6939 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-36-6934
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