9 February 2007 Single-beam, dark toroidal optical traps for cold atoms
Author Affiliations +
Abstract
We demonstrate the generation of single-beam dark toroidal optical intensity distributions, which are of interest for neutral atom storage and atom interferometry. We demonstrate experimentally and numerically optical potentials that contain a ring-shaped intensity minimum, bounded in all directions by higher intensity. We use a spatial light modulator to alter the phase of an incident laser beam, and analyze the resulting optical propagation characteristics. For small toroidal traps (< 50 &mgr;m diameter), we find an optimal superposition of Laguerre-Gaussian modes that allows the formation of single-beam toroidal traps. We generate larger toroidal bottle traps by focusing hollow beams with toroidal lenses imprinted onto the spatial light modulator.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Fredrik K. Fatemi, Spencer E. Olson, Mark Bashkansky, Zachary Dutton, Matthew Terraciano, "Single-beam, dark toroidal optical traps for cold atoms", Proc. SPIE 6483, Complex Light and Optical Forces, 648307 (9 February 2007); doi: 10.1117/12.701078; https://doi.org/10.1117/12.701078
PROCEEDINGS
10 PAGES


SHARE
RELATED CONTENT

Spatial superpositions of Gaussian beams
Proceedings of SPIE (February 25 2014)
Classical entanglement of vector vortex beams
Proceedings of SPIE (August 25 2015)
Raman-Nath approximation for two bunch atom interferometry
Proceedings of SPIE (January 25 2012)
Comparison between various types of multiple optical tweezers
Proceedings of SPIE (September 09 2008)

Back to Top