Interband transitions in a narrow-gap InSb cylindrical quantum dot
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- Kazaryan, E.M., Meliksetyan, A.V. & Sarkisyan, H.A. Tech. Phys. Lett. (2007) 33: 964. doi:10.1134/S1063785007110223
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Interband transitions in a narrow-gap InSb cylindrical quantum dot (QD) have been theoretically studied in the regime of strong dimensional quantization with allowance for a nonparabolic dispersion of electrons and light holes. The corresponding absorption coefficients and threshold frequencies for a QD array are calculated within the framework of a two-band Kane model for electrons and light holes and a parabolic dispersion law for heavy holes. These threshold frequencies fall in the IR range. Quantitative calculations are performed using the recent data of Moiseev et al.  on the growth of InSb quantum dots by liquid phase epitaxy.