Crossing Points in Spectra and Light Absorption in Spheroidal and Cone-Shaped Quantum Dots
Optics and Its Applications(2022)
摘要
We briefly review the analysis of the energy spectrum, the envelope eigenfunctions of electron, hole and exciton states, and the direct interband light absorption in cone-shaped and spheroidal impenetrable quantum dots. We apply high-order finite element method and calculation schemes of Kantorovich method in comparison with the adiabatic approximation (in the strong size quantization limit) for solving boundary-value problems that describe axially symmetric quantum dots. We demonstrate the efficiency of the algorithms and software by benchmark calculations of spectral and optical characteristics of the cone-shaped and spheroidal quantum dots and crossing points in their spectra.
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关键词
Cone-shaped and Spheroidal quantum dots, Energy spectra, Crossing points, Light absorption, Finite element method, Kantorovich method, Adiabatic approximation
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