Bound states of chirped Airy–Gaussian beams in a medium with a parabolic potential

Towards implementation of a magic optical-dipole trap for confining ground-state and Rydberg-state cesium cold atoms

“…Although realization of UV laser for the single-photon Rydberg excitation is technically challenging, it is still of great significance for solving the physical issues. With the welldeveloped fiber laser, fiber amplifier and efficient frequency conversion PPXX (periodically poled nonlinear crystal) material and technology, we have implemented a narrow-linewidth continuous-tunable 319 nm UV laser with more than 2 W output [42] for Cs 6S 1/2 ↔ nP 3/2 (n = 70-100) single-photon Rydberg excitation [34][35][36]. To further realize the spatial localization of cold atomic ensemble against the atomic diffusion and decoherence caused by residual atomic thermal motion, a magic ODT will be a powerful tool for manipulating the cold atoms.…”

“…Compared with the magic ODT for low-excited state, the magic ODT for Rydberg states is normally not so far-detuned, which ranges from several hundreds MHz to several GHz. Our goal is to identify the most useful magic detuning for Cs nS 1/2 and nP 3/2 Rydberg states [10,11,[34][35][36]. The photon scattering rate in the ODT with a given trap potential depth is calculated and analyzed, and the trapping lifetime of Rydberg atoms confined in the magic ODT is discussed.…”