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Progress In Electromagnetics Research Letters
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THE NONLINEAR ABSORPTION OF A STRONG ELECTROMAGNETIC WAVES CAUSED BY CONFINED ELECTRONS IN A CYLINDRICAL QUANTUM WIRE

By H. D. Trien and N. V. Nhan

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Abstract:
The nonlinear absorption of a strong electromagnetic wave caused by electrons confined in cylindrical quantum wires is theoretically studied by using the quantum kinetic equation for electrons. An analytic expression of the nonlinear absorption coefficient of a strong electromagnetic wave caused by electrons confined in a cylindrical quantum wire with a parabolic potential for electron-optical phonon scattering is obtained. The dependence of the nonlinear absorption coefficient on the intensity E0 and the frequency Ω of the external strong electromagnetic wave, the temperature T of the system and the radius R of the wires is strong and nonlinear. Analytic expression is numerically calculated and discussed for a GaAs/GaAsAl quantum wire. The results are compared with those for normal bulk semiconductors and quantum wells to show the differences.

Citation:
H. D. Trien and N. V. Nhan, "The Nonlinear Absorption of a Strong Electromagnetic Waves Caused by Confined Electrons in a Cylindrical Quantum Wire," Progress In Electromagnetics Research Letters, Vol. 20, 87-96, 2011.
doi:10.2528/PIERL10110910

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