Electric field effect on the impurity-related electromagnetically induced transparency in a quantum disk under non-resonant, intense laser radiation

Highlights: • Electromagnetically induced transparency in a disk-like quantum dot is studied. • Optical properties of the donor depend on the electric and non-resonant laser fields. • The transmission window and group velocity can be tuned by external parameters. - Abstract: By considering a three-level ladder-type system under electromagnetically induced transparency, the absorption and dispersion of the probe field in a GaAs disk-like quantum dot under simultaneous action of the electric field and non-resonant, intense laser radiation are investigated. We found that some characteristics such as the width of the transmission window and group velocity can be efficiently manipulated by tuning the control field intensity, non-resonant radiation amplitude and electric field strength. Our results may be relevant for future investigations of the optical process in semiconductor quantum structures and for the technological applications in solid- state optoelectronics.