Surface-Induced Spectral Broadening during Efficient Two-Photon Excitation of Cold ${}^{133}\text{Cs}$ Atoms near an Optical Nanofiber

Yuan Jiang, Xiaodong Qi, Nicolás Vera Paz +5

We report the experimental observation of the ${}^{\text{133}}$Cs 6S${}_{\text{1/2}}$ to 6D${}_{\text{5/2}}$ single-frequency two-photon transition at low excitation power using an optic…