Autler-Townes splitting via frequency upconversion at ultra-low power levels in cold ${}^{87}$Rb atoms using an optical nanofiber

Ravi Kumar, Vandna Gokhroo, Kieran Deasy +1

The tight confinement of the evanescent light field around the waist of an optical nanofiber makes it a suitable tool for studying nonlinear optics in atomic media. Here, we use an…