Optical properties of cylindrical quantum dots with diluted magnetic semiconductors structure

Abstract

The optical properties of diluted magnetic semiconductor cylindrical quantum dot caused by interband transitions are investigated. The behavior of a quantum dot as a function of the energy of an incident photon is studied for various values of temperature, magnetic field, and structural parameters. It is shown that a change in the distance between the energies of electrons and holes in identical quantum states affects the maximum of the absorption coefficient. According to the results obtained, an increase in temperature increases the absorption maximum and shifts it toward lower energy. As the magnetic field increases, the absorption maximum decreases and shifts toward higher energy. In addition, it was found that the absorption threshold frequency varies linearly at high temperatures and nonlinearly at low temperatures depending on the magnetic field.