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Journal of Zhongkai Agrotechnical College

Study on the third-harmonic generation in Morse quantum well

YU Feng-mei

Published Jan 1, 2005• 0 citations
OpenAlex

Abstract

Abstrcat The linear and nonlinear susceptibilities had been obtained by the compact-density-matrix approach in presence of the multifrequency incident optical field. An analytic formula for third-harmonic-generation was presented by graphic technology(Feynman). Numerical results were presented for typical GaAs/AlGaAs Morse quantum well. The results showed that third-harmonic-generation increased with the enhancement of a and decreased with relaxation constant increasing. Therefore, if the parameter was increased or the relaxation constant was reduced with the effects on the system associated by environment and other factors limited to minimum,a large third-harmonic-generation coefficient would be obtained.

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Abstrcat The linear and nonlinear susceptibilities had been obtained by the compact-density-matrix approach in presence of the multifrequency incident optical field. An analytic formula for third-harmonic-generation was presented by graphic technology(Feynman). Numerical results were presented for typical GaAs/AlGaAs Morse quantum well. The results showed that third-harmonic-generation increased with the enhancement of a and decreased with relaxation constant increasing. Therefore, if the parameter was increased or the relaxation constant was reduced with the effects on the system associated by environment and other factors limited to minimum,a large third-harmonic-generation coefficient would be obtained.
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