Manipulation of linear and nonlinear optical properties of type I and type II quantum ring GaAs/AlxGa1−xAs
| Autor: | Rihab Sellami, Mohamed Souhail Kehili, Afef Ben Mansour, A. Melliti |
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| Rok vydání: | 2021 |
| Předmět: |
Ring (mathematics)
X-ray absorption spectroscopy Nanostructure Materials science Physics::Optics 02 engineering and technology Computer Science::Computational Geometry Type (model theory) 021001 nanoscience & nanotechnology 01 natural sciences Molecular physics Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials 010309 optics Condensed Matter::Materials Science Nonlinear optical Attenuation coefficient 0103 physical sciences Electrical and Electronic Engineering 0210 nano-technology Refractive index Quantum |
| Zdroj: | Optical and Quantum Electronics. 53 |
| ISSN: | 1572-817X 0306-8919 |
| DOI: | 10.1007/s11082-021-02863-6 |
| Popis: | We present a theoretical study of linear and nonlinear optical properties of carriers in types I and II GaAs /AlxGa1−xAs quantum rings (QRs). We are interested in the effects of incident optical intensity, Al concentration in the barrier and rim height (hM) on linear and nonlinear absorption and refractive index, for both types of QR. After a detailed analysis of the results and a comparison between the optical properties of type I and II QRs, we conclude that we can act on the linear and non-linear absorption coefficient and the refractive index by affecting the parameters of these nanostructures. Thus, GaAs /AlxGa1−xAs quantum rings are appropriate for tunable nano-optoelectronic devices. |
| Databáze: | OpenAIRE |
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