Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

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.
Proceedings Title
Sigma Xi Post Doctoral Poster Presentations, 2004
Conference Dates
February 19-20, 2004


lowest, Na^d2, photoassocation, potential, spectroscopy, triplet


Dumke, R. , Johanning, M. , Weinstein, J. and Lett, P. (2004), Photoassociation Spectroscopy of the Lowest Triplet Potential of Na<sub>2</sub>, Sigma Xi Post Doctoral Poster Presentations, 2004 (Accessed July 22, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created February 1, 2004, Updated February 17, 2017