Transfer of ultracold 87Rb from a QUIC magnetic trap into a far off resonance optical trap

2007 ◽  
Vol 85 (3) ◽  
pp. 247-258 ◽  
Author(s):  
H Ming ◽  
W A van Wijngaarden
Keyword(s):  
Laser Beam ◽  
Magnetic Trap ◽  
Temporal Evolution ◽  
Optical Trap ◽  
Probe Laser ◽  
Ultracold Atom ◽  
Trapped Atoms ◽  
Atom Cloud ◽  
Optically Trapped

Ultracold 87Rb atoms were transferred from a QUIC (quadrupole and Ioffe configuration) magnetic trap into a far off resonance optical trap (FORT). FORTs were created by focusing a 150 mW laser beam having a wavelength of 852 nm to a spot having a radius of 20 and 30 µm. A probe laser then passed through the ultracold atom cloud after the magnetic trap was turned off to study the temporal evolution of the optically trapped atoms. Nearly 106 atoms could be transferred into the FORT at temperatures as low as 1 µK with an efficiency as high as 50%. PACS No.: 32.80.Pj

Optimization of transfer of laser-cooled atom cloud to a quadrupole magnetic trap

Pramana ◽  
2014 ◽  
Vol 82 (2) ◽  
pp. 419-423
Author(s):  
S P RAM ◽  
S K TIWARI ◽  
S R MISHRA ◽  
H S RAWAT
Keyword(s):  
Magnetic Trap ◽  
Atom Cloud

ORIENTATING MANIPULATION OF CYLINDRICAL PARTICLES WITH OPTICAL TWEEZERS

2008 ◽  
Vol 17 (04) ◽  
pp. 387-394 ◽  
Author(s):  
XIUDONG SUN ◽  
XUECONG LI ◽  
JIANLONG ZHANG
Keyword(s):  
Escherichia Coli ◽  
Carbon Nanotubes ◽  
Laser Beam ◽  
Optical Tweezers ◽  
Optical Trap ◽  
Polarization Direction ◽  
Beam Shape ◽  
E Coli ◽  
Potential Applications ◽  
Cylindrical Particles

Orientating manipulations of cylindrical particles were performed by optical tweezers. Vertical and horizontal manipulations of Escherichia coli (E. coli) were carried out by changing the trapping depth and the focused laser beam shape. It was found that carbon nanotubes bundles (CNTBs) could be rotated in the linear polarized optical trap until it orientated its long axis along the linear polarization direction of the laser beam. However, E.coli could not be orientated in this way. Corresponding mechanisms were discussed based on the anisomeric electric characters of CNTBs. These orientation technologies of cylindrical objects with optical trap have potential applications in assembling nano-electric devices.

Design and characterization of a velocity-map imaging apparatus for low-energy photo-ion spectroscopy using magneto-optically trapped atoms

2021 ◽  
Vol 92 (4) ◽  
pp. 043103
Author(s):  
Feng Fang ◽  
Wenchang Zhou ◽  
Yufan Li ◽  
Dongbin Qian ◽  
Changjie Luo ◽  
...  
Keyword(s):  
Low Energy ◽  
Velocity Map Imaging ◽  
Trapped Atoms ◽  
Ion Spectroscopy ◽  
Optically Trapped

Enhancement of the thermal lens signal induced by sample matrix absorption of the probe laser beam

2002 ◽  
Vol 41 (27) ◽  
pp. 5814 ◽  
Author(s):  
Victor I. Grishko ◽  
Chieu D. Tran ◽  
Walter W. Duley
Keyword(s):  
Laser Beam ◽  
Thermal Lens ◽  
Probe Laser ◽  
Sample Matrix ◽  
Probe Laser Beam ◽  
Thermal Lens Signal

Loading dynamics of optical trap and parametric excitation resonances of trapped atoms

2006 ◽  
Vol 100 (5) ◽  
pp. 054903 ◽  
Author(s):  
Jinwei Wu ◽  
Raymond Newell ◽  
Marc Hausmann ◽  
David J. Vieira ◽  
Xinxin Zhao
Keyword(s):  
Parametric Excitation ◽  
Optical Trap ◽  
Trapped Atoms

Deep cooling of optically trapped atoms implemented by magnetic levitation without transverse confinement

2017 ◽  
Vol 88 (5) ◽  
pp. 053104 ◽  
Author(s):  
Chen Li ◽  
Tianwei Zhou ◽  
Yueyang Zhai ◽  
Jinggang Xiang ◽  
Tian Luan ◽  
...  
Keyword(s):  
Magnetic Levitation ◽  
Trapped Atoms ◽  
Optically Trapped

Spin relaxation of optically trapped atoms by light scattering

1994 ◽  
Vol 19 (3) ◽  
pp. 207 ◽  
Author(s):  
R. A. Cline ◽  
J. D. Miller ◽  
M. R. Matthews ◽  
D. J. Heinzen
Keyword(s):  
Light Scattering ◽  
Spin Relaxation ◽  
Trapped Atoms ◽  
Optically Trapped
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