Spin–orbit effects on the nonlinear optical properties of a quantum dot in simultaneous electric and magnetic fields

•The nonlinear optical coefficients of a quantum dot are studied using a Woods–Saxon potential.•The Rashba spin–orbit effects on the nonlinear optical properties are investigated.•The competing effects of spin–orbit, dot size, electric and magnetic fields are given in detail.

We report on the nonlinear optical properties of a quantum dot including the Rashba spin–orbit interaction (RSOI) with external electric and magnetic fields. The effect of dot size is considered. We do not make any assumptions about the strength of the confinement. We use the numerical diagonalization of the Hamiltonian to determine the electronic structure. The confining potential is taken to be of the Woods–Saxon type. We find the effect of RSOI on nonlinear optical coefficients.

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