Optical properties in a two-dimensional quantum ring: Confinement potential and Aharonov-Bohm effect

OPTICS COMMUNICATIONS

卷:284

Article

Liang, Shijun¹  Xie, Wenfang¹  Shen, Huaya² 

[1] Guangzhou Univ, Dept Phys, Coll Phys & Elect Engn, Guangzhou 510006, Guangdong, Peoples R China

[2] China Inst Radiat Protect, Taiyuan 030006, Peoples R China

关键词: Pseudopotential;    Magnetic field;    Magnetic flux;    Optical properties;    Oscillator strength;   

DOI  :  10.1016/j.optcom.2011.08.080

来源: Elsevier

【 摘 要 】

Optical properties of a two-dimensional quantum ring with pseudopotential in the presence of an external magnetic field and magnetic flux have been theoretically investigated. Our results show that both of the pseudopotential and magnetic field can affect the third non-linear susceptibility and oscillator strength. In addition, we found that the oscillator strength and the absolute value of the resonant peak of the linear, non-linear and total absorption coefficient demonstrates the Aharonov-Bohm oscillation with magnetic flux, moreover, changes in confinement potential can influence the Aharonov-Bohm oscillation in peak while the resonant peak value of the linear, non-linear and total refractive index changes decreases as magnetic flux increases. (C) 2011 Elsevier B.V. All rights reserved.

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