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Low-threshold, narrow-line THz-wave parametric oscillator with an intra-cavity grazing-incidence grating
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Low-threshold, narrow-line THz-wave parametric oscillator with an intra-cavity grazing-incidence grating

T.D. Wang, Y.Y. Lin, S.Y. Chen, A.C. Chiang, S.T. Lin 和 Y.C. Huang
Optics Express, 卷.16(17), 頁碼.12571-12576
08/2008
DOI: https://doi.org/10.1364/OE.16.012571
PMID: 18711493

摘要

Atomic and Molecular Physics and Optics
We report a low-threshold, narrow-line THz-wave parametric oscillator with an intra-cavity grazing-incidence grating and a 1-mm thick, 45-mm long lithium-niobate planar waveguide. When pumped by an actively Q-switched Nd:YAG laser, the threshold energy and intensity of the parametric oscillator were about 2.2 mJ and 70 MW/cm 2 , respectively. The linewidths of the output THz wave were 12 and 134 GHz with and without the intra-cavity grating, respectively. © 2008 Optical Society of America.

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