Trapping of Neutral Sodium Atoms with Radiation Pressure
1987; American Physical Society; Volume: 59; Issue: 23 Linguagem: Inglês
10.1103/physrevlett.59.2631
ISSN1092-0145
AutoresE. L. Raab, Mara Prentiss, Alex Cable, Steven Chu, David E. Pritchard,
Tópico(s)Atomic and Molecular Physics
ResumoWe report the confinement and cooling of an optically dense cloud of neutral sodium atoms by radiation pressure. The trapping and damping forces were provided by three retroreflected laser beams propagating along orthogonal axes, with a weak magnetic field used to distinguish between the beams. We have trapped as many as ${10}^{7}$ atoms for 2 min at densities exceeding ${10}^{11}$ atoms ${\mathrm{cm}}^{\ensuremath{-}3}$. The trap was \ensuremath{\simeq}0.4 K deep and the atoms, once trapped, were cooled to less than a millikelvin and compacted into a region less than 0.5 mm in diameter.
Referência(s)