Electron-phonon interaction effect on optical absorption in cylindrical quantum wires |
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Authors: | You-Bin Yu |
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Affiliation: | a National Laboratory of Solid State Microstructures, Department of Physics, Nanjing University, Nanjing 210093, China b School of Physics and Electronic Engineering, Guihuagang Campus, Guangzhou University, Guangzhou 510405, China |
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Abstract: | Electron-phonon interaction effects on linear and nonlinear optical absorption in cylindrical quantum wires are investigated. The linear and nonlinear optical absorption coefficients are obtained by using compact-density-matrix approach and iterative method, and the numerical results are presented for GaAs/AlAs cylindrical quantum-well wires. The results show that electron-phonon interaction not only influences the relaxation rate but also distinctly influences the wave functions and energies of the electron. The correction of electron-phonon interaction effect on the wave functions of the electron dominates the values of absorption coefficients. Moreover, the correction of electron-phonon interaction effect on the energies of the electron makes the absorption peaks blue shift and become wider. |
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Keywords: | 71.38.&minus k 68.65.La 71.35.Ee |
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