Abstract The bi-dimensional optical lattices formed by several sets of laser evanescent standing waves propagating at the surface of a dielectric prism are investigated. The characteristics of the optical traps including their depths and the sizes are analysed. It is shown that the micro-optical lattice with a sub-half-wavelength size can be achieved by the interference of the selected evanescent waves. The scheme together with the recently developed atomic chip may be used for atomic quantum manipulation.
Received: 10 March 2006
Revised: 23 November 2006
Accepted manuscript online:
(Calculations and mathematical techniques in atomic and molecular physics)
Fund: Project supported by the National
Natural Science Foundation of China (Grant Nos 10434080 and
60578018), the National Basic Research Program of China (Grant No
2006CB921102) and also by the CFKSTIP (705010) and PCSIRT (IRT0516)
from
MEC.
Cite this article:
Zhang Jing(张静), Zhang Tian-Cai(张天才), Wang Jun-Min(王军民), and Peng Kun-Chi(彭堃墀) Generation of sub-half-wavelength micro-optical traps by dichroic evanescent standing waves 2007 Chinese Physics 16 1295
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