| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Output Enhancement of a THz Wave Based on a Surface-Emitted THz-Wave Parametric Oscillator |
| LI Zhong-Yang1**, YAO Jian-Quan2, XU De-Gang2, BING Pi-Bin1, ZHONG Kai2
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1North China University of Water Resources and Electric Power, Zhengzhou 450011
2College of Precision Instrument and Opto-electronics Engineering, Institute of Laser and Opto-electronics, Tianjin University, Tianjin 300072
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| Cite this article: |
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LI Zhong-Yang, YAO Jian-Quan, XU De-Gang et al 2011 Chin. Phys. Lett. 28 114201 |
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Abstract High-power nanosecond pulsed THz-wave radiation is achieved via a surface-emitted THz-wave parametric oscillator. One MgO:LiNbO3 crystal with large volume is used as the gain medium. THz−wave radiation from 1.084 THz to 2.654 THz is obtained. The maximum THz-wave average power is 5.8 µW at 1.93 THz when the pump energy is 84 mJ, corresponding to a energy conversion efficiency of 6.9×10−6. The polarization characteristics of THz wave are analyzed. During the experiments the radiations of the first-order and the second-order Stokes wave are observed.
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| Keywords:
42.65.Yj
42.60.Da
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Received: 20 July 2011
Published: 30 October 2011
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| PACS: |
42.65.Yj
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(Optical parametric oscillators and amplifiers)
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42.60.Da
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(Resonators, cavities, amplifiers, arrays, and rings)
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