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Optics Express

Side-illuminated hollow-core optical fiber for atom guiding

Fredrik K. Fatemi, Mark Bashkansky, S. Moore

Published Jun 27, 2005• 8 citations
Publisher

Abstract

We demonstrate a technique for coupling guiding light into hollow-core optical fibers for atom guiding. Microprisms embedded into a multimode, double-clad hollow fiber, allow light to be coupled into the fiber at multiple locations along the length of the fiber. The technique offers significant advantages over end-pumped configurations.
DOI
10.1364/opex.13.004890

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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.