Third-Order Nonlinear Optical Susceptibility of Special Asymmetric Quantum Wells |
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Authors: | WANG Guang-Hui GUO Kang-xian GUO Qi |
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Institution: | 1. Institute of Quantum Electronics, South China Normal University, Guangzhou 510631, China
;2. Department of Physics, Guangzhou
University, Guihuagang Campus, Guangzhou 510405, China |
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Abstract: | A detailed procedure for the calculation of the third-harmonic-generation susceptibility tensor is given in special asymmetric quantum wells, and an analytic formula for the third-harmonic-generation susceptibility is obtained by the compact density matrix approach and the iterative procedure. Finally, the numerical results are presented for typical GaAs/AlGaAs asymmetric quantum wells. The calculated results show that the origin of the large thirdharmonic-generation susceptibility is due to the increase in asymmetry of the quantum well. |
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Keywords: | third-harmonic generation asymmetric quantum well density matrix approach |
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