López, F. E.; Reyes Gómez, E.; Porras Montenegro, Nelson; Brandi, H. S.; Oliveira, L. E. (2010-01)
Abstract:The influence of an intense laser field on shallow-donor states in cylindrical GaAs–Ga1−xAlxAs quantum-well wires under an external magnetic field applied along the wire axis is theoretically studied. Numerical calculations are performed in the framework of the effective-mass approximation, and the impurity energies corresponding to the ground state and 2p ± excited states are obtained via a variational procedure. The laser-field effects on the shallow-donor states are considered within the extended dressed-atom approach, which allows one to treat the problem 'impurity + heterostructure + laser field + magnetic field' as a renormalized 'impurity + heterostructure + magnetic field' problem, in which the laser effects are taken into account through a renormalization of both the conduction-band effective mass and fundamental semiconductor gap.
Es proyecto?:no
Autor:López, F. E.
Programa Nal. Colciencias:Programa nacional de ciencias básicas
Insitución cofinanciadora:Departamento Administrativo de Ciencia, Tecnología e Innovación [CO] Colciencias
Institución participante:Universidad del Valle, Univalle
Tipo de producto resultado de investigación:info:eu-repo/semantics/article
Fecha:2010-01
Proyecto id:1106-452-21296
Nombre de proyecto principal:Control cuántico de las propiedades electrónicas y de espín en nanoestructuras inorgánicas, orgánicas y biológicas
Comunidad vinculada:Comunidad científica colombiana