Evanescent light-wave atomic funnel: A tandem hollow-fiber, hollow-beam approach Article

cited authors

  • Yin, J; Zhu, Y; Wang, Y

fiu authors

abstract

  • We propose an atomic funnel consisting of a dark hollow, divergent laser beam and an evanescent light in a short micron-sized hollow optical fiber. The cold atoms extracted from a magneto-optical trap experience effective Sisyphus cooling in the dark hollow beam. We calculate the potential barriers for atomic guiding in the evanescent light and the dark hollow beam, and analyze the atomic losses during the guiding and funneling process. Our results show that the equilibrium three-dimensional root-mean-square momentum of about [Formula Presented] (temperature [Formula Presented]) and the funneling efficiency of about 95% could be obtained. A low-velocity, intense coherent atomic beam can be generated in this funnel scheme and its potential applications in atom optics are briefly discussed. © 1998 The American Physical Society.

publication date

  • January 1, 1998

Digital Object Identifier (DOI)

start page

  • 1957

end page

  • 1966

volume

  • 57

issue

  • 3