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

• Published in: Physica. E, Low-dimensional systems & nanostructures Low-dimensional systems & nanostructures, 2014-11, Vol.64, p.29-32
• Main Authors: Aytekin, O., Turgut, S., Tomak, M.
• Format: Article
• Language: English
• Subjects: Applied sciences; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Cross-disciplinary physics: materials science; rheology; Electronics; Exact sciences and technology; Materials science; Molecular electronics, nanoelectronics; Nanocrystalline materials; Nanoscale materials and structures: fabrication and characterization; Nonlinear optics; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures; Physics; Quantum dot; Quantum dots; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; Spin–orbit
• ISSN: 1386-9477; 1873-1759
• DOI: 10.1016/j.physe.2014.06.018

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. [Display omitted] •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.