Effects of magnetic field and hydrostatic pressure on a confined exciton in a strained GaAs0.9P0.1/GaAs0.6P0.4 quantum dot
by Ada Vinolin; A. John Peter
International Journal of Nanoparticles (IJNP), Vol. 7, No. 3/4, 2014

Abstract: Simultaneous effects of magnetic field and the hydrostatic pressure on the confined exciton in a cylindrical GaAs0.9P0.1/GaAs0.6P0.4 strained quantum dot are investigated taking into account the geometrical confinement effect. Calculations are done using variational formulism within the single band effective mass approximation numerically. The oscillator strength as a function of dot radius is computed in the influence of magnetic field strength and pressure effect. Second order nonlinear coefficient, second order harmonic generation and the third-order nonlinear optical susceptibility of third order harmonic generation as a function of dot radius, are carried out in the presence of magnetic field strength and the hydrostatic pressure. Our results show that the optical properties strongly depend on the spatial confinement, the hydrostatic pressure and magnetic field strength.

Online publication date: Sat, 28-Feb-2015

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