Gong Zhenglie, Liu Yanming, Yang Qiansuo. Study of temperature matching in BNN crystals[J]. Chinese Journal of Lasers, 1984, 11(11): 658
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Frequency doubling of light propagating along the main section in BNN crystals is analyzed with temperature and angle as independent variables. Following results are obtained: approximate relation of second harmonic power temperature, the relation of angle change in the refractive indices of harmonic wave with temperature and relation between temperature and angle in the case of perfect phase-matching. The experimental results are in good agreement with the theory.