Influence of electric field on electronic optical quantum transitions in a quantum dot - quantum ring semiconductor nanostructure

I. S. Hnidko; V. I. Gutsul; I. P. Koziarskyi; O. M. Makhanets

doi:10.1117/12.2615553

20 December 2021 Influence of electric field on electronic optical quantum transitions in a quantum dot - quantum ring semiconductor nanostructure

I. S. Hnidko, V. I. Gutsul, I. P. Koziarskyi, O. M. Makhanets

Author Affiliations +

Proceedings Volume 12126, Fifteenth International Conference on Correlation Optics; 121260Y (2021) https://doi.org/10.1117/12.2615553
Event: Fifteenth International Conference on Correlation Optics, 2021, Chernivtsi, Ukraine

Abstract

In the model of effective masses and rectangular potentials, the influence of a homogeneous electric field on the energy spectrum, electron wave functions, and oscillator strengths of intraband quantum transitions in a semiconductor (GaAs/Al_xGa₁-xAs) quantum dot-quantum ring nanostructure is theoretically investigated. In the presence of an electric field, the stationary Schrödinger equations for quasiparticles are not analytically solved. For their approximate solution, the unknown wave functions are sought in the form of an expansion over a complete set of cylindrically symmetric wave functions, and the electron energy is found from the solution of the corresponding secular equation. It is shown that the electric field significantly affects the localization of the electron in the multilayer nanostructure. In this case, both the electron energy and the strength of the oscillators of intraband quantum transitions depend nonmonotonically on the magnitude of the electric field strength.

Citation Download Citation

I. S. Hnidko, V. I. Gutsul, I. P. Koziarskyi, and O. M. Makhanets "Influence of electric field on electronic optical quantum transitions in a quantum dot - quantum ring semiconductor nanostructure", Proc. SPIE 12126, Fifteenth International Conference on Correlation Optics, 121260Y (20 December 2021); https://doi.org/10.1117/12.2615553

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KEYWORDS

Nanostructures

Quantum dots

Oscillators

Semiconductors

Quantum electronics

Gallium arsenide

Quasiparticles

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