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Title: Electronic and intraband optical properties of single quantum rings under intense laser field radiation

The influence of an intense laser field on one-electron states and intraband optical absorption coefficients is investigated in two-dimensional GaAs/Ga{sub 0.7}Al{sub 0.3}As quantum rings. An analytical expression of the effective lateral confining potential induced by the laser field is obtained. The one-electron energy spectrum and wave functions are found using the effective mass approximation and exact diagonalization technique. We have shown that changes in the incident light polarization lead to blue- or redshifts in the intraband optical absorption spectrum. Moreover, we found that only blueshift is obtained with increasing outer radius of the quantum ring.
Authors:
 [1] ; ; ;  [2] ;  [3]
  1. Department of Physics, Politehnica University of Bucharest, 313 Splaiul Independentei, Bucharest RO-060042 (Romania)
  2. Department of Solid State Physics, Yerevan State University, Alex Manoogian 1, 0025 Yerevan (Armenia)
  3. Instituto de Alta Investigación, Universidad de Tarapacá, Casilla 7D, Arica (Chile)
Publication Date:
OSTI Identifier:
22314366
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 116; Journal Issue: 9; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ABSORPTION; ABSORPTION SPECTRA; EFFECTIVE MASS; ELECTRONS; ENERGY SPECTRA; GALLIUM ARSENIDES; LASER RADIATION; OPTICAL PROPERTIES; POLARIZATION; VISIBLE RADIATION