Nonlinear Optical Rectification and Second Harmonic Generation in 2D Quantum Rings under Electric Field and Magnetic Fields

ABSTRACT: By using the effective mass and parabolic band approximations, the nonlinear optical rectification and the second harmonic generation are calculated in a two-dimensional quantum ring under the simultaneous effects of perpendicularly applied magnetic field and in-plane applied electric field. The geometry of the ring is modeled via the combined influences of a parabolic and inverse square confining potentials. The exact solutions for the two-dimensional motion of the conduction band electrons are used as the basis for a perturbation-theory treatment of the static electric field effect. The variation of one of the different potential energy parameters, for a fixed configuration of the remaining ones, leads to either blueshifts or redshifts of the resonant peaks as well as to distinct rates of change for their amplitudes.

• Autores: Morales Aramburo, Álvaro Luis; Mora Ramos, Miguel Eduardo; Duque Echeverri, Carlos Alberto
• Tipo de recurso: Article of investigation
• Fecha de publicación: 2014
• Institución: Universidad de Antioquia
• Repositorio: Repositorio UdeA
• Idioma: eng
• OAI Identifier: oai:bibliotecadigital.udea.edu.co:10495/20842
• Acceso en línea: http://hdl.handle.net/10495/20842
• Palabra clave: Campos eléctricos; Electric fields; Campo magnético; Magnetic field; Óptica no lineal; Anillos cuánticos
• Rights: openAccess
• License: https://creativecommons.org/licenses/by-nc-nd/4.0/