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Optical and Quantum Electronics

Erschienen in:

01.01.2023

High pressure and polaron effects on optical properties of GaN wedge-shaped quantum dot

verfasst von: A. Sayari, M. Servatkhah, R. Pourmand

Erschienen in: Optical and Quantum Electronics | Ausgabe 1/2023

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Abstract

In the paper, the optical properties of GaN wedge-shaped quantum dots under the influence of pressure and with electron-phonon (e-p) interaction are taken into account. To this end, we first exert a polarized monochromatic electromagnetic field on our system and theoretically consider intersubband transitions for the electrons. The energy difference and dipole matrix elements are evaluated by considering the effects of e-p and pressure. Then, the refractive index changes (RICs) and absorption coefficients (ACs) are calculated. It is deduced that the energy difference and dipole matrix elements reduce by considering the e-p and pressure effects. It results that the pressure enhances the e-p effect on the energy difference. The ACs and RICs move to lower energies considering the e-p and pressure effects. The RICs and ACs are increased in the presence of the e-p effect, whereas they are reduced with considering the pressure. Considering the e-p and pressure effects on total ACs, it is seen that the peak of AC splits into two peaks.

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Titel: High pressure and polaron effects on optical properties of GaN wedge-shaped quantum dot
verfasst von: A. Sayari
M. Servatkhah
R. Pourmand
Publikationsdatum: 01.01.2023
Verlag: Springer US
Erschienen in: Optical and Quantum Electronics / Ausgabe 1/2023
Print ISSN: 0306-8919
Elektronische ISSN: 1572-817X
DOI: https://doi.org/10.1007/s11082-022-04257-8

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