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Journal of Materials Science

Erschienen in:

03.01.2022 | Advanced Nanomaterials

Refractive index change of a D ₂ ⁺ complex in GaAs/Al_xGa_1−xAs quantum ring

verfasst von: N. Hernández, R. A. López-Doria, I. E. Rivera, M. R. Fulla

Erschienen in: Journal of Materials Science | Ausgabe 18/2022

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Abstract

The linear, nonlinear, and total relative refractive index change of a \(D^{+}_{2}\) complex confined in a GaAs quantum ring and capped by a \(Al_{x}Ga_{1-x}As\) matrix, under hydrostatic pressure and magnetic fields is reported. The variations of the angle between donors allow enhancing, reducing, and even nullifying the relative refractive index change. A red-shift of the relative refractive index change profiles by increasing the QR size is observed. In addition, when the concentration of the dopant material in the barrier is reduced, the electron has a higher probability of coupling with the optical field. A remarkable periodic oscillation of the relative refractive index change by increasing the magnetic field strength is obtained. The results reveal the possibility to tune the relative refractive index change within the THz band (below 20 meV).

Vorheriger Artikel Non-linear response under terahertz radiation of an asymmetric Ga1−xAlxAs/GaAs/Ga1−yAlyAs V-groove nanowire confining a singly-ionized double donor

Nächster Artikel Dynamic mechanical behavior and microstructural evolution of additively manufactured 316L stainless steel

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Titel: Refractive index change of a D 2 + complex in GaAs/AlxGa1−xAs quantum ring
verfasst von: N. Hernández
R. A. López-Doria
I. E. Rivera
M. R. Fulla
Publikationsdatum: 03.01.2022
Verlag: Springer US
Erschienen in: Journal of Materials Science / Ausgabe 18/2022
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI: https://doi.org/10.1007/s10853-021-06763-8

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