Research Article

Effect of Ring Radius and Electric Field on the Relative Refractive Index of a GaAs Quantum Ring

Volume: 43 Number: 1 March 30, 2022
EN

Effect of Ring Radius and Electric Field on the Relative Refractive Index of a GaAs Quantum Ring

Abstract

The influence of inner ring radius and in-plane electric field on the relative refractive index of a GaAs-AlGaAs single circular quantum ring is theoretically studied. The energy levels and corresponding wave functions are obtained by solving the Schrödinger equation within effective mass and envelope wave function approximations. The changes in the intraband transition energies are presented in terms of varying ring radius and external electric fields. Relative refractive index changes are calculated through the compact-density matrix approach. The results show that both ring radius and electric field significantly affect the location and also the peak intensities of relative refractive index changes on the incident photon energy.

Keywords

References

  1. [1] Lavenère-Wanderley L. A., Bruno-Alfonso A., Latge A., Electronic states in quantum rings: Electric field and eccentricity effects, Journal of Physics Condensed Matter, 14 (2002) 259-270.
  2. [2] Bruno-Alfonso A., Latgé A., Aharonov-Bohm oscillations in a quantum ring: Eccentricity and electric-field effects, Physical Review B, 71 (2005) 125312.
  3. [3] Niculescu E. C., Stan C., Bejan D., Cartoaje C., Impurity and eccentricity effects on the nonlinear optical rectification in a quantum ring under lateral electric fields, Journal of Applied Physics, 122 (2017) 144301.
  4. [4] Bejan D., Stan C., Niculescu E. C., Optical properties of an elliptic quantum ring: Eccentricity and electric field effects, Optical Materials, 78 (2018) 207-219.
  5. [5] Nasri D., On the eccentricity effects on the intraband optical transitions in two dimensional quantum rings with and without donor impurity, Physica B: Condensed Matter, 540 (2018) 51-57.
  6. [6] Silva J. C., Ferreira R., Chaves A., Farias G. A., Eccentricity effects on the quantum confinement in double quantum rings, Solid State Communications, 151 (2011) 1200-1204.
  7. [7] Vinasco J. A., Radu A., Niculescu E., Mora-Ramos M. E., Feddi E., Tulupenko V., Restrepo R. L., Kasapoglu E., Morales A. L., Duque C. A., Electronic states in GaAs-(Al,Ga)As eccentric quantum rings under nonresonant intense laser and magnetic fields, Scientific Reports, 9 (2019) 1427. [8] Nasri D., Electronic and optical properties of eccentric quantum ring under parallel magnetic field, Physica B: Condensed Matter, 615 (2021) 413077.
  8. [9] Chakraborty T., Manaselyan A., Barseghyan M., Laroze D., Controllable continuous evolution of electronic states in a single quantum ring, Physical Review B, 97 (2018) 041304(R).

Details

Primary Language

English

Subjects

Classical Physics (Other)

Journal Section

Research Article

Publication Date

March 30, 2022

Submission Date

November 22, 2021

Acceptance Date

February 11, 2022

Published in Issue

Year 2022 Volume: 43 Number: 1

APA
Salman Durmuşlar, A. (2022). Effect of Ring Radius and Electric Field on the Relative Refractive Index of a GaAs Quantum Ring. Cumhuriyet Science Journal, 43(1), 126-131. https://doi.org/10.17776/csj.1026826

Cited By

As of 2026, Cumhuriyet Science Journal will be published in six issues per year, released in February, April, June, August, October, and December