Phase-matching angle for second-harmonic generation in an annealed ZnGeP2 crystal from a CO2 laser at 10.6 mu m decreases as the pump power is increased. Such a dependence is used to significantly enhance the second-harmonic power. (C) 2007 Optical Society of America
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South China Univ Technol, Sch Phys & Optoelect, Guangzhou 510641, Guangdong, Peoples R ChinaSouth China Univ Technol, Sch Phys & Optoelect, Guangzhou 510641, Guangdong, Peoples R China
Liu, Bodong
Yu, Huakang
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South China Univ Technol, Sch Phys & Optoelect, Guangzhou 510641, Guangdong, Peoples R ChinaSouth China Univ Technol, Sch Phys & Optoelect, Guangzhou 510641, Guangdong, Peoples R China
Yu, Huakang
Li, Zhi-Yuan
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South China Univ Technol, Sch Phys & Optoelect, Guangzhou 510641, Guangdong, Peoples R ChinaSouth China Univ Technol, Sch Phys & Optoelect, Guangzhou 510641, Guangdong, Peoples R China
Li, Zhi-Yuan
Tong, Limin
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Zhejiang Univ, Coll Opt Sci & Engn, State Key Lab Modern Opt Instrumentat, Hangzhou 310027, Zhejiang, Peoples R ChinaSouth China Univ Technol, Sch Phys & Optoelect, Guangzhou 510641, Guangdong, Peoples R China