The large effective third-order nonlinearity produced by cascaded second-order processes is evidenced by the spatial self-diffraction of two beams interacting in a b-barium borate crystal. In this configuration, both the real and imaginary parts of the induced third-order susceptibility play a role, and the effect reaches its maximum around the phase-matching condition
Self-diffraction through cascaded second-order frequency-mixing effects in b-barium borate
DI TRAPANI, PAOLO;
1993-01-01
Abstract
The large effective third-order nonlinearity produced by cascaded second-order processes is evidenced by the spatial self-diffraction of two beams interacting in a b-barium borate crystal. In this configuration, both the real and imaginary parts of the induced third-order susceptibility play a role, and the effect reaches its maximum around the phase-matching condition
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