Spherical quantum dot in modified Kratzer–Coulomb potential: study of optical rectification coefficients

Abstract

We consider the effects of quantum dot radius, confinement potential depth and controllable effective mass on the optical rectification coefficient (ORC) in spherical quantum dots, which is confined with Modified Kratzer-Coulomb Potential (MKCP). Using Nikiforov-Uvarov (N-U) method and compact density matrix theory, the ground state energy, optical rectification coefficient and wave function of electrons under the combined action of many factors are calculated. The results show that they affect the optical rectification response from different angles, including the position of peak and formant.

Linear and nonlinear optical properties in spherical quantum dots: Modified Möbius squared potential

“…In the past years, the study of low dimensional materials (quantum well, quantum rings, quantum wires and quantum dots) has gained popularity [1] , [2] , [3] , [4] , [5] , [6] , [7] , [8] , [9] , [10] . Among them, QDs offer a wide research perspective due to confinement in three dimensions.…”