Photoassociation Spectroscopy of the Lowest Triplet Potential of Na2
R Dumke, M Johanning, J D. Weinstein, Paul D. Lett
We have performed a type of Autler-Townes spectroscopy to investigate the level structure of the triplet ground state potential of the sodium dimer. By driving photoassociation transitions with continuous-wave lasers, we state-selectively form excited-state molecules from ultracold sodium atoms. By using a second laser to drive transitions from the excited state to the triplet ground state, we have been able to measure over 100 individual rovibrational and hyperfine states with a typical accuracy of 15 MHz. This is an improvement of roughly three orders of magnitude over previous work.We are currently completing construction of a new apparatus which will use similar techniques to produce, magnetically trap, and state-selectively detect sodium molecules. Progress towards using this apparatus to measure ultracold atom-molecule scattering properties will be discussed.
, Johanning, M.
, Weinstein, J.
and Lett, P.
Photoassociation Spectroscopy of the Lowest Triplet Potential of Na<sub>2</sub>, Sigma Xi Post Doctoral Poster Presentations, 2004
(Accessed September 27, 2023)