ZHAO JIRAN, JIANG MINHUA, XU DEWEI, WANG XIANXIU. Third harmonic of ps laser in a ZnS thin film waveguide[J]. Acta Optica Sinica, 1984, 4(2): 122
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Third harmonic of 1.064?m laser has been obtained in a ZnS thin film waveguide with thickness of 1.69?m produced by vacuum evaporation. In this experiment, a passively mode-locked ps laser and a specially fabricated grating were used. The conversion efficiency of energy is 0.1%.