[1] Rogalski A. Infrared detectors: status and trends [J]. Prog. Quant. Electron., 2003, 27(2-3): 59-210. 
[2] Midwinter J E. Image conversion from 1.6 ?m to the visible in lithium niobate [J]. Appl. Phys. Lett., 1968, 12 (3): 68-70. 
[3] Boyd R W, Townes C H. An infrared upconverter for astronomical imaging [J]. Appl. Phys. Lett., 1977, 31 (7): 440-442. 
[4] Pedersen C, Karamehmedovi E, Dam J S，et al. Enhanced 2D-image upconversion using solid-state lasers [J]. Opt. Express, 2009, 17 (23): 20885-20890. 
[5] Dmitriev V G, Gurzadyan G G, Nikogosyan D N. Handbook of Nonlinear Optical Crystals [M]. Translated by Wang J Y. 3rd ed. Beijing: Higher Education Press, 2009: 321-324. Dmitriev V G, Gurzadyan G G, Nikogosyan D N. 非线性光学晶体手册 [M]. 王继杨译. 第3版. 北京: 高等教育出版社, 2009: 321-324. 
[6] Vodopyanov K L, Kulevskii L A. New dispersion relationships for GaSe in the 0.65-18 µm spectral region [J]. Opt. Commun., 1995, 118 (3-4): 375-378. 
[7] Andreev Y M. Efficient generation of the second harmonic of a nanosecond CO2 laser radiation pulse [J]. Soviet Journal of Quantum Electronics, 1987, 17 (11): 1435. 
[8] Fan Y X, Eckardt R C, Byer R L, et al. AgGaS2 infrared parametric oscillator [J]. Appl. Phys. Lett., 1984, 45 (4): 313-315. 
[9] Midwinter J E, Warner J. The effects of phase matching method and of uniaxial crystal symmetry on the polar distribution of second-order non-linear optical polarization [J]. British Journal of Applied Physics, 1965, 16 (8): 1135.