Method to determine the phase dispersion of the third-order susceptibility.
A new method for measuring the phase of the third-order susceptibility chi((3)) that is based on the phenomenon of polarization beats is proposed and demonstrated. As a first application, the method was employed to study the phase dispersion of chi((3)) in Cd(S, Se)-doped glasses.
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Acioli
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Gomes
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de Araújo