Second-harmonic generation in asymmetric quantum dots in the presence of a static magnetic field

doi:10.1088/1674-1056/21/8/087303

Abstract The second-harmonic generation (SHG) coefficient in an asymmetric quantum dot (QD) with a static magnetic field is theoretically investigated. Within the framework of the effective-mass approximation, we obtain the confined wave functions and energies of electrons in QD. We also obtain the SHG coefficient by the compact-density-matrix approach and the iterative method. The numerical results for the typical GaAs/AlGaAs QD show that the SHG coefficient depends strongly on the magnitude of magnetic field, parameters of the asymmetric potential and the radius of the QD. The resonant peak shifts with the magnetic field or the radius of the QD changing.

Keywords: quantum dot nonlinear optical rectification magnetic field

Received: 12 December 2011
Revised: 15 March 2012
Accepted manuscript online:

PACS:	73.21.La	(Quantum dots)
	42.62.Ky
	81.40.Rs	(Electrical and magnetic properties related to treatment conditions)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 10975125).

Corresponding Authors: Li Xue-Chao, Wang An-Min
E-mail: xuechao@mail.ustc.edu.cn; anmwang@ustc.edu.cn

Cite this article:

Li Xue-Chao (李学超), Wang An-Min (王安民), Wang Zhao-Liang (王兆亮), Yang Yang (杨阳) Second-harmonic generation in asymmetric quantum dots in the presence of a static magnetic field 2012 Chin. Phys. B 21 087303

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Second-harmonic generation in asymmetric quantum dots in the presence of a static magnetic field

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