Observation of atoms laser cooled below the Doppler limit
Paul D. Lett,Richard N. Watts,Christoph I Westbrook,William D. Phillips,Phillip L. Gould,Harold Metcalf +5 more
- Vol. 61, Iss: 2, pp 169-172
TLDR
This "Doppler cooling limit" results from the minimization of the detuning-dependent temperature at low laser power1.Abstract:
The generally accepted theory of laser cooling of free atoms predicts that the lowest achievable temperature is given by kaT = hγ/2, where kB is Boltzmann's constant arid γ is the natural linewidth of the transition for laser cooling. This "Doppler cooling limit" results from the minimization of the detuning-dependent temperature at low laser power1:read more
Citations
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Laser cooling below the Doppler limit by polarization gradients: simple theoretical models
TL;DR: In this article, two cooling mechanisms based on laser polarization gradients are presented, which lead to temperatures well below the Doppler limit, and they work at low laser power when the optical-pumping time between different ground-state sublevels becomes long.
References
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Journal ArticleDOI
Laser cooling below the Doppler limit by polarization gradients: simple theoretical models
TL;DR: In this article, two cooling mechanisms based on laser polarization gradients are presented, which lead to temperatures well below the Doppler limit, and they work at low laser power when the optical-pumping time between different ground-state sublevels becomes long.
Journal ArticleDOI
Cooling of gases by laser radiation
TL;DR: In this article, it was shown that a low-density gas can be cooled by illuminating it with intense, quasi-monochromatic light confined to the lower-frequency half of a resonance line's Doppler width.
Journal ArticleDOI
Three-dimensional viscous confinement and cooling of atoms by resonance radiation pressure
TL;DR: The confinement and cooling of atoms with laser light is reported, in which the atoms are localized in a 0.2 cm volume for a time in excess of 0.1 second and cooled to a temperature of T = 2.4 × 10−4K.
Journal ArticleDOI
Laser Deceleration of an Atomic Beam
TL;DR: In this article, the deceleration and velocity bunching of Na atoms in an atomic beam have been observed, caused by absorption of counter-propagating resonant laser light.
Journal ArticleDOI
Radiation-Pressure Cooling of Bound Resonant Absorbers
TL;DR: In this article, the first observation of radiation-pressure cooling on a system of resonant absorbers which are elastically bound to a laboratory fixed apparatus was reported, and they were cooled to 40 K by irradiating them with the 8-ensuremath{\mu}W output of a frequency doubled, single-mode dye laser tuned to the low-frequency side of the Doppler profile on the $S 2S 1/2