The nonlinear optical properties of GaAs-based quantum wells with Kratzer–Fues confining potential: Role of applied static fields and non-resonant laser radiation
| Autor: | R.L. Restrepo, F. Ungan, M.E. Mora-Ramos, J.C. Martínez-Orozco |
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| Přispěvatelé: | Ungan, F., Faculty of Technology, Department of Optical Engineering, Sivas Cumhuriyet University, Sivas, 58140, Turkey -- Martínez-Orozco, J.C., Unidad Académica de Física, Universidad Autónoma de Zacatecas, Calzada Solidaridad esquina con Paseo la Bufa S/N, Zacatecas, Zac. CP 98060, Mexico -- Restrepo, R.L., Universidad EIA, Envigado, CP 055428, Colombia -- Mora-Ramos, M.E., Centro de Investigación en Ciencias, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Cuernavaca, Morelos CP 62209, Mexico |
| Rok vydání: | 2019 |
| Předmět: |
Terahertz radiation
Physics::Optics 02 engineering and technology Electronic structure Photon energy 01 natural sciences law.invention 010309 optics law 0103 physical sciences Quantum well Electrical and Electronic Engineering Wave function Electric and magnetic field Envelope (waves) Physics 73.21.Fg Optical response 78.67.De Intense laser field 021001 nanoscience & nanotechnology Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Computational physics Nonlinear system 78.66.Fd 0210 nano-technology |
| Zdroj: | Optik. 185:881-887 |
| ISSN: | 0030-4026 |
| Popis: | In the present paper, we report a theoretical investigations on the linear and nonlinear optical properties of a GaAs-based quantum well with the Kratzer-Fues confining potential, including the effects of external applied static electric, magnetic, and intense THz laser fields. The electronic structure of this system is obtained by using the effective-mass and envelope wave function approaches. Then, the coefficients of linear, third-order nonlinear, and total optical absorption (OACs) and relative refractive index changes (RICs) are calculated by using the iterative solutions of the compact-density matrix approach (CDMA). The obtained numerical results are reported as functions of the incident photon energy taking into account several values of static electric, static magnetic, and intense THz laser fields. These results show that the nonlinear optical properties of this structure are significantly affected by the magnitude of the external applied fields. © 2019 Elsevier GmbH This research was partially supported by Universidad EIA through the project: “Propiedades optoelectrónicas en puntos cuánticos”. |
| Databáze: | OpenAIRE |
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