Nonlocal Contributions to Degenerate Four-Wave Mixing in Noncentrosymmetric Materials
نویسنده
چکیده
Cascaded second-order and piezoelectric contributions to degenerate four-wave mixing in noncentrosymmetric materials are analyzed in detail. The effective third-order susceptibility measured in degenerate four-wave mixing becomes strongly dependent on experimental parameters that do not normally influence the third-order response in centrosymmetric materials. This introduces important new requirements for reliable reporting of experimental results. A new technique that allows us to experimentally relate the third-order susceptibility to the high-frequency electro-optic and dielectric properties is introduced and demonstrated in BaTiO3 and KNbO3. [S0031-9007(98)08117-4]
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تاریخ انتشار 1998