14 August 1998 Effective nonlinear coefficients and quasi-phase-matched harmonic generation
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We have studied the harmonic generation and the effective nonlinear-optical coefficients of the quasi-periodic optical superlattice (QPOS). It has been shown that the effective nonlinear-optical coefficients in QPOS are the extension of that in periodic optical superlattice (POS). The intensities of the harmonic generation obtained by the coupled-wave equations are in good agreement with prediction by the effective nonlinear-optical coefficients.
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Yi-qiang Qin, Yi-qiang Qin, Yongyuan Zhu, Yongyuan Zhu, Shining Zhu, Shining Zhu, Naiben Ming, Naiben Ming, } "Effective nonlinear coefficients and quasi-phase-matched harmonic generation", Proc. SPIE 3556, Electro-Optic and Second Harmonic Generation Materials, Devices, and Applications II, (14 August 1998); doi: 10.1117/12.318242; https://doi.org/10.1117/12.318242

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