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期刊论文
Engineering of a dual-periodic optical superlattice used in a coupled optical parametric interaction
J. Opt. Soc. Am. B/Vol. 19, No.7/July 2002，-0001，（）：
Quasi-phase matching facilitates the phase matching of any parametric interaction by setting an appropriately modulated period. We propose a dual-periodic structure that is used in the construction of a frequencyconversion device. For example, we have designed and fabricated such a dual-periodic structure in a LiTaO3 crystal. Using a fundamental source at 1.064mm, we obtained ultraviolet radiation at 355nm and green radiation at 532nm simultaneously by frequency tripling and frequency doubling the fundamental source. Theoretically, this idea can be further extended to the design of a multiperiodic structure for achievement of more quasi-phase-matched processes in a single optical superlattice.
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