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Binding energy of an off-center donor in cylindrical quantum-well wires under intense laser fields

E. C. NICULESCU1,* , A. M. RADU1

Affiliation

  1. Department of Physics, “Politehnica” University of Bucharest, RO-77206 Bucharest, Romania

Abstract

Calculation of the binding energy of an off-center donor hydrogenic impurity in a cylindrical quantum wire, in the simultaneous presence of an intense high frequency laser field and a static magnetic field, is reported. Different geometries concerning the size of quantum wire, the donor impurity position, as well as the polarization direction of the applied laser field with respect to the quantum structure, were considered. We found that in the strong confinement regime the presence of the linearly polarized laser radiation resolves partially the degeneracy of donor states corresponding to symmetrical position of the impurity..

Keywords

Quantum well wires, Off-center donor, Intense laser-field, Magnetic field, Binding energies.

Submitted at: July 13, 2007
Accepted at: Nov. 16, 2007

Citation

E. C. NICULESCU, A. M. RADU, Binding energy of an off-center donor in cylindrical quantum-well wires under intense laser fields, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 11, pp. 3598-3603 (2007)