Atom trapping and guiding with a subwavelength-diameter optical fiber

2004/04/23 by V. I. Balykin, K. Hakuta, Fam Le Kien +4 · 8 citations
Engineering · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Mechanical and Optical Resonators #Photonic and Optical Devices #physics.atom-ph #physics.optics

paper · pdf · doi:10.1103/physreva.70.011401

5 pages, 5 figures

arxiv created 2004/04/23 · openalex publication_date 2004/07/20 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We suggest using an evanescent wave around a thin fiber to trap atoms. We show that the gradient force of a red-detuned evanescent-wave field in the fundamental mode of a silica fiber can balance the centrifugal force when the fiber diameter is about two times smaller than the wavelength of the light and the component of the angular momentum of the atoms along the fiber axis is in an appropriate range. As an example, the system should be realizable for cesium atoms at a temperature of less than 0.29\phantom\rule0.3em0exmK using a silica fiber with a radius of 0.2\phantom\rule0.3em0ex\ensuremathμm and a 1.3\text\ensuremath-\ensuremathμm-wavelength light with a power of about 27\phantom\rule0.3em0exmW.

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