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A single hollow-beam optical trap for cold atoms

S Kulin1, S Aubin2, S Christe2, B Peker2, S L Rolston1 and L A Orozco2

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We present an optical trap for atoms which we have developed for precision spectroscopy measurements. Cold atoms are captured in a dark region of space inside a blue-detuned hollow laser beam formed by an axicon. We analyse the light potential in a ray optics picture and experimentally demonstrate trapping of laser-cooled metastable xenon atoms.


PACS

37.10.Vz Mechanical effects of light on atoms, molecules, and ions

42.15.-i Geometrical optics

42.60.Fc Modulation, tuning, and mode locking

42.79.Bh Lenses, prisms and mirrors

37.10.De Atom cooling methods

Subjects

Atomic and molecular physics

Optics, quantum optics and lasers

Dates

Issue 6 (December 2001)

Received 6 July 2001, in final form 21 September 2001

Published 15 October 2001



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