Electromagnetically Induced Transparency in a Spin-Orbit-coupled Finite-Temperature Cold Atomic Ensemble

We investigated the electromagnetically induced transparency in spin-orbit-coupled finite-temperature cold quantum gases. We showed that spin-orbit coupling can induce an additional frequency shift in the absorption line, which can be observed nondestructively from the electromagnetically induced transparency spectroscopy. As an alternative method this shift can be used to detect and measure the spin-orbit coupling strength. The spin-orbit coupling can also be used as a switch to control laser light propagation in this medium. (C) 2018 Optical Society of America.