Electronic Resource
Springer
Applied physics
59 (1994), S. 179-185
ISSN:
1432-0649
Keywords:
32.80.Pj
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract We report some laser-cooling effects in a few172Yb+ ions held in a Paul trap. Pronounced cloud-to-crystal phase transitions have been observed as discontinuities in the Yb+ fluorescence spectrum of the 369 nm cooling transition. The first reported two-dimensional images of Yb+ clouds with evidence of crystal structure have been recorded using a photon-counting position-sensitive detector. An ion temperature of 100 mK has been estimated from the size of a single ion image. Step-wise cooling of a re-heated, few-ion Yb+ cloud was also observed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01081168
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