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.

# All-Optical Generation and Photoassociative Probing of Sodium Bose-Einstein Condensates

Published

### Author(s)

R Dumke, M Johanning, Eduardo Gomez, J D. Weinstein, Kevin Jones, Paul D. Lett

### Abstract

We demonsatrate an all optical technique to evaporatively produce sodium Bose-Einsteincondensates (BEC). We use a crossed-dipole trap formed from light near 1 $\mu$m, and a simple ramp of the intensity to force evaporation. In addition, we introduce photoassociation as diagnostic of the trap loading process, and show that it can be used to detect the onset of Bose-Einstein condensation. Finally, we demonstrate that the production of multiple traps with condensates with this technique is straightforward, and that some control over the spinor state of the BEC is achieved by positioning the trap as well.
Citation
Physical Review A (Atomic, Molecular and Optical Physics)

### Keywords

atom optics, Bose-Einstein condensation, laser cooling, optical trapping, photoassociation

## Citation

Dumke, R. , Johanning, M. , Gomez, E. , Weinstein, J. , Jones, K. and Lett, P. (2006), All-Optical Generation and Photoassociative Probing of Sodium Bose-Einstein Condensates, Physical Review A (Atomic, Molecular and Optical Physics) (Accessed December 7, 2021)
Created May 1, 2006, Updated October 12, 2021