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Low energy exciton states in a nanoscopic semiconducting ring

Hui Hu·Guang-Ming Zhang·Jia-Lin Zhu·Jia-Jiong Xiong
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Abstract

We consider an effective mass model for an electron-hole pair in a simplified confinement potential, which is applicable to both a nanoscopic self-assembled semiconducting InAs ring and a quantum dot. The linear optical susceptibility, proportional to the absorption intensity of near-infrared transmission, is calculated as a function of the ring radius $% R_0$. Compared with the properties of the quantum dot corresponding to the model with a very small radius $R_0$, our results are in qualitative agreement with the recent experimental measurements by Pettersson {\it et al}.

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Hui Hu, Guang-Ming Zhang, Jia-Lin Zhu, Jia-Jiong Xiong. 2000-10-13. Low energy exciton states in a nanoscopic semiconducting ring. https://doi.org/10.1103/physrevb.63.045320

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