N Houston et al 2008 J. Phys. B: At. Mol. Opt. Phys. 41 211001 doi:10.1088/0953-4075/41/21/211001
N Houston, E Riis and A S Arnold
Show affiliationsWe demonstrate the generation of highly adaptable and reproducible dark optical ring lattices, which do not require Laguerre–Gauss beams or interferometric stability. In conjunction with a magnetic trap, these scanned 2D intensity distributions will enable low-decoherence trapping and straightforward dynamic manipulation of ultracold species in annular geometries using low-intensity regions of blue-detuned light. The technique is ideal for azimuthal ratchet, Mott insulator and persistent current experiments with quantum degenerate gases.
03.75.Be Atom and neutron optics
37.10.Vz Mechanical effects of light on atoms, molecules, and ions
Issue 21 (14 November 2008)
Received 28 August 2008, in final form 11 September 2008
Published 13 October 2008
N Houston et al 2008 J. Phys. B: At. Mol. Opt. Phys. 41 211001