Physical Review Letters
We have observed violet photon emission resulting from energy-pooling collisions between ultracold Rb atoms illuminated by two colors of near-resonant infrared laser light. We have used this emission as a probe of doubly excited state ultracold collision dynamics. We have observed the lowest saturation intensity for light-induced ultracold collisions seen to date which we identify as due to depletion of incoming ground state flux. We have also varied the detuning of the lasers which allows us to clearly identify the effect of spontaneous emission and optical shielding.
Original Publication Citation
Sukenik, C.I., Hoffmann, D., Bali, S., & Walker, T. (1998). Low saturation intensities in two-photon ultracold collisions. Physical Review Letters, 81(4), 782-785. doi: 10.1103/PhysRevLett.81.782
Sukenik, C. I.; Hoffman, D.; Bali, S.; and Walker, T., "Low Saturation Intensities in Two-Photon Ultracold Collisions" (1998). Physics Faculty Publications. 11.