Abstract
We describe calculations that predict and analyze distinctive features
in the velocity distribution in 1D laser cooling for light shift
potential well depths only a few times the recoil energy. These features
can be interpreted in terms of populations of energy bands or even Bloch
states in the periodic potential. They occur with a σ+
standing wave, with and without a small B field, and for lin⊥lin
laser cooling. We have observed these features experimentally in a beam
of metastable helium atoms cooled on the
23S1⇆23P2 transition,
with velocity resolution ~0.3 recoil.
Original language | English |
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Pages (from-to) | 2546-2549 |
Journal | Physical Review Letters |
Volume | 72 |
Issue number | 16 |
DOIs | |
Publication status | Published - 1 Apr 1994 |
Externally published | Yes |
Keywords
- Optical cooling of atoms
- trapping
- Mechanical effects of light on atoms molecules electrons and ions