Foreign Gas Pressure Broadening and Shifts of the 2S-4S Two-Photon Transition in Lithium
W DeGraffenreid, S C. Campbell, Craig J. Sansonetti
We have observed broadening and shift of the 2S-4S Doppler-free two-photon transition of atomic Li by collisions with neon and argon buffer gases in a heat-pipe oven. Measured broadening and shift rates are presented and compared with theoretical predictions calculated in the impact approximation using three different interaction potentials. A superposition of polarization and modified Fermi potentials gives good agreement with the experimental data.
Journal of Physics B-Atomic Molecular and Optical Physics
, Campbell, S.
and Sansonetti, C.
Foreign Gas Pressure Broadening and Shifts of the 2S-4S Two-Photon Transition in Lithium, Journal of Physics B-Atomic Molecular and Optical Physics
(Accessed June 10, 2023)