Eur. Phys. J. B (2014) 87: 71
https://doi.org/10.1140/epjb/e2014-40922-x

Regular Article

Third harmonic generation in quantum dot with Rashba spin orbit interaction

¹ Department of Physics & Astrophysics, University of Delhi, 110007 Delhi, India
² Department of Physics, Kirori Mal College, University of Delhi, 110007 Delhi, India
³ Department of Physics, DDU College, University of Delhi, 110007 Delhi, India

^a e-mail: manojmalikdu@gmail.com

Received: 16 October 2013
Received in final form: 28 January 2014
Published online: 19 March 2014

Abstract

Here we have investigated the influence of magnetic field and confinement potential on nonlinear optical property, third harmonic generation (THG) of a parabolically confinement quantum dot 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 confining potential, magnetic field, Rashba spin orbit interaction strength and photon energy. Our results indicate that an increase of Rashba spin orbit interaction coefficient produces strong effect on the peak positions of THG. The role of confinement strength and spin orbit interaction strength as control parameters on THG have been demonstrated.