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Field induced periodic poling is used to create >10 micron period structures in /spl sim/250 micron thick slabs of LiNbO/sub 3/. Third order quasi-phase-matched second harmonic blue light generation is demonstrated by free propagation of a 937 nm fundamental Gaussian beam in periodically poled LiNbO/sub 3/, with a conversion efficiency of 0.2%/W cm.>
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Burns et al. (1994) studied this question.
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