High-powered tunable terahertz source based on a surface-emitted terahertz-wave parametric oscillator

Zhongyang Li; Pibin Bing; Jianquan Yao; Degang Xu; Kai Zhong

doi:10.1117/1.OE.51.9.091605

15 May 2012 High-powered tunable terahertz source based on a surface-emitted terahertz-wave parametric oscillator

Zhongyang Li, Pibin Bing, Jianquan Yao, Degang Xu, Kai Zhong

Author Affiliations +

Optical Engineering, Vol. 51, Issue 9, 091605 (May 2012). https://doi.org/10.1117/1.OE.51.9.091605

Abstract

A high-powered pulsed terahertz (THz)-wave has been parametrically generated via a surface-emitted THz-wave parametric oscillator (TPO). The effective parametric gain length under the noncollinear phase matching condition was calculated for optimization of the parameters of the TPO. A large volume crystal of MgO:LiNbO₃ was used as the gain medium. THz-wave radiation covering a frequency range from 0.87 to 2.73 THz was obtained. The average power of the THz-wave was 9.12 μW at 1.75 THz when the pump energy was 94 mJ, corresponding to an energy conversion efficiency of about 9.7×10−6 and a photon conversion efficiency of about 0.156%. The THz-wave power in our experiments is high enough for practical applications to spectrum analysis and imaging.

Citation Download Citation

Zhongyang Li, Pibin Bing, Jianquan Yao, Degang Xu, and Kai Zhong "High-powered tunable terahertz source based on a surface-emitted terahertz-wave parametric oscillator," Optical Engineering 51(9), 091605 (15 May 2012). https://doi.org/10.1117/1.OE.51.9.091605

Published: 15 May 2012

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