Cold atom gas at very high densities in an optical surface microtrap

Abstract

An optical microtrap is realized on a dielectric surface by crossing a tightly focused laser beam with an horizontal evanescent-wave atom mirror. The nondissipative trap is loaded with $\sim$$10^5$ cesium atoms through elastic collisions from a cold reservoir provided by a large-volume optical surface trap. With an observed 300-fold local increase of the atomic number density approaching $10^{14}{\mathrm{cm}}^{-3}$, unprecedented conditions of cold atoms close to a surface are realized.

References in corpus (2)

• All Optical Formation of an Atomic Bose-Einstein Condensate
• Bose-Einstein Condensation in a Surface Micro Trap

Cited by in corpus (12)

• Two-dimensional Bose-Einstein condensate in an optical surface trap
• Evanescent-wave trapping and evaporative cooling of an atomic gas near two-dimensionality
• Heating in Nanophotonic Traps for Cold Atoms
• Evaporative cooling of cold atoms at surfaces
• Sculpting quasi one-dimensional Bose-Einstein condensate to generate calibrated matter-waves
• Probing Surface-Bound Atoms with Quantum Nanophotonics
• Conditions for order and chaos in the dynamics of a trapped Bose-Einstein condensate in coordinate and energy space
• Tuning quantum reflection in graphene with an external magnetic field
• Long-time averaged dynamics of a Bose-Einstein condensate in a bichromatic optical lattice with external harmonic confinement
• A Parabolic Model for the Dimple Potentials
• Opto-mechanical measurement of micro-trap via nonlinear cavity enhanced Raman scattering spectrum
• Cloud parameter estimation for interacting BEC after time-of-flight