Results of the study of nonlinear optical parameters of colloidal solutions of silver, gold, platinum, and copper by the Z -scan method are presented. The nonlinear refractive indices of these solutions at the wavelength of the Nd:YAG laser (λ=1064 nm) and its second harmonic (λ=532 nm) were measured. The two-photon absorption of these solutions and their nonlinear susceptibilities were studied.
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Ganeev et al. (2001) studied this question.
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