Spin–orbit interaction effect on nonlinear optical rectification of quantum wire in the presence of electric and magnetic fields

• DOI: 10.1016/j.physb.2013.12.044
• Publication Date: 2014-01-08T07:30:56Z
• Authors: Manoj Kumar; Siddhartha Lahon; Pradip Kumar Jha; Sukirti Gumber; Man Mohan
• Keywords: Spin–orbit interaction; Orbit (dynamics); Quantum wire; Optical rectification

Abstract Here we have investigated the influence of external electric field and magnetic field on the nonlinear optical rectification of a parabolic confinement wire in the presence of Rashba spin–orbit interaction. We have used density matrix formulation for obtaining optical properties within the effective mass approximation. The results are presented as a function of quantum wire radius, electric field, magnetic field, Rashba spin–orbit interaction strength and photon energy. Our results indicate an increase of electric field gives the red-shift of the peak positions of nonlinear optical rectification. The role of confinement strength and spin–orbit interaction strength as control parameters on this nonlinear property have been demonstrated.