Photon absorption in regimented quantum dot arrays

A study of the intraband absorption coefficient in cuboid InAs quantum dot periodic nanostructures embedded in GaAs is presented. The miniband structure of electron states in the conduction band is related to the shape of the quantum dots. The effect of strain is also taken into account in the simulations through a previous 8×8 k·p calculation. We analyze the influence on the absorption coefficient on the miniband structure of the systems.