Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Quantum Electronics and Laser Science Conference
  • OSA Technical Digest (Optica Publishing Group, 1992),
  • paper QThA4

Magnetic inhibition of sub-Doppler laser cooling in σ+−σ - optical molasses

Not Accessible

Your library or personal account may give you access

Abstract

We examine sub-Doppler laser cooling in a one-dimensional optical molasses with σ+−σ. polarization, focusing on limitations introduced by the application of a magnetic field parallel to the laser beams. Cooling atoms in this configuration depends on a velocity-sensitive cooperation between multiphoton coherences and spontaneous optical pumping. The combination induces an atomic orientation which, by virtue of selection rules, makes the atom absorb strongly from the laser beam opposing its velocity. If an atom has different Landé g factors in its ground and excited states, the cooperation between coherent and incoherent processes is inhibited by the presence of a magnetic field. The efficiency of cooling therefore decreases.

© 1992 Optical Society of America

PDF Article
More Like This
MAGNETIC-FIELD-INDUCED LASER COOLING BELOW THE DOPPLER LIMIT*

S-Q. Shang, B. Sheehy, P. van der Straten, and H. Metcalf
QPDP22 International Quantum Electronics Conference (IQEC) 1990

Optical molasses and teste of a new theory of laser cooling

D. S. WEISS, P. J. UNGAR, Y. SHEW, E. RIIS, and STEVEN CHU
THLL2 Quantum Electronics and Laser Science Conference (CLEO:FS) 1989

Longitudinal-magnetic-field effects in sub-Doppler cooling

R. Gupta, S. Padua, C. Xie, H. Batelaan, and H. Metcalf
QTuK9 Quantum Electronics and Laser Science Conference (CLEO:FS) 1993

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved