3 November 2016 Widely-tunable terahertz parametric oscillator based on MgO-doped near-stoichiometric LiNbO3 crystal
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Abstract
A widely tunable, high-energy terahertz wave parametric oscillator based on 1 mol. % MgO-doped near-stoichiometric LiNbO3 crystal has been proposed with 1064 nm nanosecond pulsed laser pumping. The tunable range of 1.16 to 4.64 THz was obtained. Under the pump energy of 150 mJ/pulse, the maximum THz wave output energy of 12.56 μJ was achieved at 1.88 THz, corresponding to the THz wave conversion efficiency of 7.61×10-5 and the photon conversion efficiency of 1.14%, respectively. Moreover, the THz half maximum (FWHM) beam diameters of MgO:SLN TPO measured at 4 cm from the output surface were 7.42 mm and 6.06 mm in the vertical and horizontal directions, respectively.
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Longhuang Tang, Longhuang Tang, Yuye Wang, Yuye Wang, Degang Xu, Degang Xu, Zhen Yang, Zhen Yang, Chao Yan, Chao Yan, Wentao Xu, Wentao Xu, Pan Duan, Pan Duan, Yixin He, Yixin He, Jia Shi, Jia Shi, Meitong Nie, Meitong Nie, Jianquan Yao, Jianquan Yao, } "Widely-tunable terahertz parametric oscillator based on MgO-doped near-stoichiometric LiNbO3 crystal", Proc. SPIE 10030, Infrared, Millimeter-Wave, and Terahertz Technologies IV, 100301O (3 November 2016); doi: 10.1117/12.2245676; https://doi.org/10.1117/12.2245676
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