Loading and cooling in an optical trap via hyperfine dark states
CAREY, Max
School of Physics and Astronomy [Southampton]
Laboratoire Photonique, Numérique et Nanosciences [LP2N]
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School of Physics and Astronomy [Southampton]
Laboratoire Photonique, Numérique et Nanosciences [LP2N]
CAREY, Max
School of Physics and Astronomy [Southampton]
Laboratoire Photonique, Numérique et Nanosciences [LP2N]
School of Physics and Astronomy [Southampton]
Laboratoire Photonique, Numérique et Nanosciences [LP2N]
MINARDI, Francesco
Istituto Nazionale di Ottica [Firenze] [INO-CNR]
Dipartimento di Fisica e Astronomia [Bologna]
< Reduce
Istituto Nazionale di Ottica [Firenze] [INO-CNR]
Dipartimento di Fisica e Astronomia [Bologna]
Language
en
Article de revue
This item was published in
Physical Review Research. 2020-02-26, vol. 2, n° 013212
American Physical Society
English Abstract
We present a novel optical cooling scheme capable of loading and cooling atoms directly inside deep optical dipole traps utilizing hyperfine dark states. In the presence of strong light shifts of the upper excited states, ...Read more >
We present a novel optical cooling scheme capable of loading and cooling atoms directly inside deep optical dipole traps utilizing hyperfine dark states. In the presence of strong light shifts of the upper excited states, this allows the velocity selective dark-state cooling of atoms into the conservative potential without loss of atoms. We report the lossless optical cooling inside the trap with a seven-fold increase in the number of atoms loaded. Our findings open the door to all-optical cooling of trapped atoms and molecules which lack the closed cycling transitions normally needed to achieve low temperatures and the high initial densities required for evaporative cooling.Read less <
Origin
Hal imported