A phase-conjugate wave is generated by degenerate four-wave mixing in an amorphous chalcogenide As(2)S(3) thin film. The time-dependent behaviors of the phase-conjugate wave, the nonlinear absorption coefficient, and the refractive index are treated analytically, and the results are compared with those of experiment. The analyses are based on the rate equations obtained from a simplified energy-band model of amorphous As(2)S(3).
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Kwon et al. (1985) studied this question.
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