Confinement of ultracold atoms in a Laguerre-Gaussian laser beam created with diffractive optics
arXiv:1308.1326 · doi:10.1016/j.optcom.2014.01.084
Abstract
We report 2D confinement of Rb 87 atoms in a Laguerre-Gaussian laser beam. Changing of the sign of the detuning from the atomic resonance dramatically alters the geometry of the confinement. With the laser detuned to the blue, the atoms are confined to the dark, central node of the Laguerre-Gaussian laser mode. This trapping method leads to low ac Stark shifts to the atomic levels. Alternatively, by detuning the laser to the red of the resonance, we confine atoms to the high intensity outer ring in a multiply-connected, toroidal configuration. We model the confined atoms to determine azimuthal intensity variations of the trapping laser, caused by slight misalignments of the Laguerre-Gaussian mode generating optics.
References in corpus (14)
- Observation of persistent flow of a Bose-Einstein condensate in a toroidal trap
- Optical ferris wheel for ultracold atoms
- Vortex coupler for atomic Bose-Einstein condensates
- Toroidal optical dipole traps for atomic Bose-Einstein condensates using Laguerre-Gaussian beams
- Atom trapping in an interferometrically generated bottle beam trap
- Cold atom confinement in an all-optical dark ring trap
- Imaging trapped ions with a microfabricated lens for quantum information processing
- A crossed vortex bottle beam trap for single-atom qubits
- A single hollow beam optical trap for cold atoms
- Efficient Collection of Single Photons Emitted from a Trapped Ion into a Single Mode Fiber for Scalable Quantum Information Processing
- Vortices in Bose-Einstein condensates confined in a multiply connected Laguerre-Gaussian optical trap
- Integration of fluorescence collection optics with a microfabricated surface electrode ion trap
- Atom trapping in a bottle beam created by a diffractive optical element
- Bose-Einstein condensation transition studies for atoms confined in Laguerre-Gaussian laser modes
Cited by in corpus (6)
- Realizing the Harper model with Ultracold Atoms in a Ring Lattice
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- Vector polarizability of atomic state induced by a linearly polarized vortex beam: External control of magic, tune-out wavelengths, and heteronuclear spin oscillations
- Transfer of orbital angular momentum superposition from asymmetric Laguerre-Gaussian beam to Bose-Einstein Condensate
- Rotation Sensitive Quench and Revival of Coherent Oscillations in a Ring Lattice
- Quantum Rotor Atoms in Light Beams with Orbital Angular Momentum: Highly Accurate Rotation Sensor