Published in Physical Review A, Volume 73, Issue 1, January 20, 2006, pages 013409-1-013409-6.
Copyright © 2006 American Physical Society. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Physical Society. The following article appeared in Physical Review and may be found at http://dx.doi.org/10.1103/PhysRevA.73.013409.
NOTE: At the time of publication, the authors Glen Gillen and Katharina Christandl were not yet affiliated with Cal Poly.
We theoretically investigate the feasibility of using intensity distributions of light of a single laser beam diffracted by a circular aperture as optical dipole traps for cold neutral atoms. Localized and cylindrically symmetric traps on the central axis of the circular aperture exist for both blue- and red-detuned laser light. Experimental mapping of the spots of interest using CO2 laser light demonstrates the existence of these light distributions for laboratory conditions and their agreement with theoretical predictions.