Effect of magnetic field on linear and nonlinear optical properties in a parabolic cylindrical quantum dot

In the present work, the optical properties of a GaAs cylindrical quantum dot in the presence of an applied magnetic field is studied. For this purpose, the effect of magnetic field on linear, nonlinear and total refractive index changes and absorption coefficients is investigated. According to the obtained results, it is found that: (i) The linear, nonlinear, and total refractive index changes increase and shift towards higher energies when the magnetic field increases. (ii) The linear, nonlinear, and total absorption coefficient increases when the magnetic field increases. Also, the resonance peak shifts towards higher energies by increasing magnetic field.