Generation of Widely Tunable Terahertz Waves by Difference-Frequency Generation Using a Configurationally Locked Polyene 2-[3-(4-Hydroxystyryl)-5, 5-Dimethylcyclohex-2-Enylidene] Malononitrile Crystal

Hirohisa Uchida ^1,2*, Takashi Sugiyama ¹, Koji Suizu ¹, Takashi Osumi ², and Kodo Kawase ^1,3
1 Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
² ARKRAY Inc. Yousuien-nai, Gansuin-cho 59, Kamigyo-ku, Kyoto, 6020008, Japan
³ RIKEN, 519-1399 Aramaki-Aoba, Aoba, Sendai 980-0845, Japan
^*2 Email: uchidah@arkray.co.jp

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Abstract: We generated widely tunable terahertz (THz) waves using difference-frequency generation (DFG) in a configurationally locked polyene (CLP) 2-[3-(4-hydroxystyryl)- 5, 5-dimethylcyclohex-2-enylidene]malononitrile (OH1) crystal. The two waves generated by a KTiOPO4 (KTP) optical parametric oscillator (OPO) were used to pump the OH1 crystal. The maximum output energy of the THz wave was 604 pJ/pulse. Widely tunable THz waves were successfully generated from 0.5 to 10 THz by using difference-frequency generation source.

Keywords: Nonlinear optical materials, Difference-frequency generation, OH1 crystal

Published: 2011-9-30

Acknowledgments: The authors are greatly indebted to Noboru Fukasaku for Synthesis of high purity OH1.

Cite this article:
Hirohisa Uchida, Takashi Sugiyama, Koji Suizu, Takashi Osumi, and Kodo Kawase. Generation of Widely Tunable Terahertz Waves by Difference-Frequency Generation Using a Configurationally Locked Polyene 2-[3-(4-Hydroxystyryl)-5, 5-Dimethylcyclohex-2-Enylidene] Malononitrile Crystal[J]. International Journal of Terahertz Science and Technology, 2011, Vol.4, No.3: 132-136.  DOI:10.11906/TST.132-136.2011.09.20

URL: http://www.tstnetwork.org/10.11906/TST.132-136.2011.09.20