Abstract
Some years ago the potential of increasing the magnitude of χ(3) Kerr effect with a combination of cascaded χ(J) second order effects (CSOE) mainly due to second harmonic generation (SHG) was discovered [1] It has recently been shown that the combined processes of optical rectification and linear electro-optical effect lead to a similar phenomenon [2]. Hereafter we evidence in a cubic crystal, the temporal behavior and evaluate the amplitudes of both third-order and CSOE contributions to effective nonlinear index of refraction n2.
© 2000 IEEE
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