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Physics Education

Guiding atoms along hollow optical fibres: creating an atom hosepipe

Kishan Dholakia

Published Sep 1, 1998• 0 citations
Publisher

Abstract

Recent advances in atomic and laser physics have seen the emergence of a new area of atom guiding. Atoms are transported along hollow core optical fibres. This article outlines the motivation for this research and the physical ideas used to achieve these atom `hosepipes'.
DOI
10.1088/0031-9120/33/5/016

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We have used optical forces to guide atoms through hollow-core optical fibers. Laser light is launched into the hollow region of a glass capillary fiber and guided by grazing-incidence reflection from the walls. When the laser is detuned 1--30 GHz red of the Rb D2 resonance lines, dipole forces attract atoms to the high-intensity region along the axis and guide them through the fiber. We show that atoms may be guided around bends in the fiber and that in initial experiments the atoms experience up to 18 reflections from the potential walls with minimal loss.