Cold Atoms in a Hollow Mirror Trap

1997 ◽  
Vol 11 (28) ◽  
pp. 3311-3317
Author(s):  
J. A. Kim ◽  
K. I. Lee ◽  
H. Nha ◽  
H. R. Noh ◽  
W. Jhe
Keyword(s):  
Laser Beam ◽  
Cold Atoms ◽  
Optical Trap ◽  
Statistical Properties ◽  
Magneto Optical Trap ◽  
Atom Trap ◽  
Circularly Polarized ◽  
Rubidium Atoms ◽  
Quantum Statistical ◽  
Polarization Configuration

We present a novel and simple vapour-cell magneto-optical atom trap in a pyramidal and a conical hollow mirror cavity. A single laser beam having modulation sidebands at microwaves is used for cooling, trapping and repumping of rubidium atoms. When the laser is circularly polarized and sent into the hollow region, three pairs of counterpropagating beams are automatically produced therein, having the same polarization configuration as in the conventional six beam magneto-optical trap. The precooled atom sources thus produced may be used to obtain much colder and denser atoms for study of their quantum statistical properties.

Long-distance channeling of cold atoms exiting a 2D magneto-optical trap by a Laguerre–Gaussian laser beam

2014 ◽  
Vol 39 (3) ◽  
pp. 719 ◽  
Author(s):  
Vincent Carrat ◽  
Citlali Cabrera-Gutiérrez ◽  
Marion Jacquey ◽  
José W. Tabosa ◽  
Bruno Viaris de Lesegno ◽  
...  
Keyword(s):  
Laser Beam ◽  
Cold Atoms ◽  
Optical Trap ◽  
Magneto Optical Trap ◽  
Gaussian Laser Beam ◽  
Long Distance

Transferring cold atoms in double magneto-optical trap by a continuous-wave transfer laser beam with large red detuning

2008 ◽  
Vol 79 (12) ◽  
pp. 123116 ◽  
Author(s):  
Junmin Wang ◽  
Jing Wang ◽  
Shubin Yan ◽  
Tao Geng ◽  
Tiancai Zhang
Keyword(s):  
Laser Beam ◽  
Cold Atoms ◽  
Continuous Wave ◽  
Optical Trap ◽  
Magneto Optical Trap

scholarly journals Loading of a far off-resonance dipole force trap for stable 39K

2007 ◽  
Vol 85 (1) ◽  
pp. 1-12 ◽  
Author(s):  
E J Prime ◽  
J A Behr ◽  
M R Pearson
Keyword(s):  
Ring Laser ◽  
Optical Trap ◽  
Magneto Optical Trap ◽  
Circularly Polarized ◽  
Dipole Force ◽  
Linearly Polarized ◽  
Achromatic Lens ◽  
High Level ◽  
20 Nm

A useful tool that can achieve a high level of spin polarization is a circularly polarized far off-resonance dipole force trap (CFORT). This work is the first step in its development; building the necessary components to successfully load stable 39K into a linearly polarized far off-resonance trap (FORT) from a magneto-optical trap, where the atoms are precooled to a temperature of 400 μK. The FORT consists of 700 mW of light from a titanium–sapphire ring laser, focused with a 200 mm achromatic lens to a waist of 35 μm. The light is detuned between 1 and 20 nm to the red of the D1 transition and this gives rise to trap depths in the region of a few milliKelvin. A characterization of the FORT's loading efficiency and lifetime as a function of FORT beam detuning, power, and ellipticity are studied. PACS Nos.: 32.80.Pj, 23.40.–s, 39.25.+k

Loss of cold atoms due to collisions with residual gases in free flight and in a magneto-optical trap

2018 ◽  
Vol 27 (7) ◽  
pp. 073701 ◽  
Author(s):  
Jing-feng Xiang ◽  
He-nan Cheng ◽  
Xiang-kai Peng ◽  
Xin-wen Wang ◽  
Wei Ren ◽  
...  
Keyword(s):  
Cold Atoms ◽  
Optical Trap ◽  
Magneto Optical Trap ◽  
Free Flight
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