Measurements on release-recapture of cold Rb-85 atoms using an optical nanofibre in a magneto-optical trap
arXiv:1303.7344 · doi:10.1088/0957-0233/25/5/055203
Abstract
We have performed release-recapture temperature measurements of laser-cooled Rb-85 atoms using an optical nanofibre (ONF) in a magneto-optical trap (MOT). The effects of changing the cooling laser light-shift parameter on the temperature of the cold atoms and spring constant of the trap are studied. By varying the cold atom number density near the ONF, the onset of the multiple scattering regime is observed without the need for an estimation of the atom cloud size. Moreover, this sensitive ONF assisted release-recapture technique is easily able to detect any optical misalignment of the cooling laser beams in the MOT.
arXiv comment17 pages, 7 figures
References in corpus (14)
- Optical interface created by laser-cooled atoms trapped in the evanescent field surrounding an optical nanofiber
- Optical microsphere resonators: optimal coupling to high-Q whispering gallery modes
- Demonstration of a state-insensitive, compensated nanofiber trap
- Atom waveguide using a two-color evanescent light field around a subwavelength-diameter optical fiber
- Low-light-level nonlinear optics with slow light
- Atom trapping and guiding with a subwavelength-diameter optical fiber
- A heat-and-pull rig for fiber taper fabrication
- Observation of two-photon absorption at low power levels using tapered optical fibers in rubidium vapor
- Blue-detuned evanescent field surface traps for neutral atoms based on mode interference in ultra-thin optical fibres
- Tapered optical fibers as tools for probing magneto-optical trap characteristics
- Shaping the evanescent field of optical nanofibers for cold atom trapping
- Nanofiber-Based Double-Helix Dipole Trap for Cold Neutral Atoms
- Creating a self-induced dark spontaneous-force optical trap for neutral atoms
- Observation of Zeeman shift in the rubidium D2 line using an optical nanofiber in vapor