A nanofiber-based optical conveyor belt for cold atoms

Author(s): S.T. Dawkins, R. Mitsch, D. Reitz, E. Vetsch, A. Rauschenbeutel

Journal: Applied Physics B

Volume: 110

Page(s): 279

Year: 2013

DOI Number: 10.1007/s00340-012-5268-2

Link: Link to publication

Abstract:

We demonstrate optical transport of cold cesium atoms over millimeter-scale distances along an optical nanofiber. The atoms are trapped in a one-dimensional optical lattice formed by a two-color evanescent field surrounding the nanofiber, far red- and blue-detuned with respect to the atomic transition. The blue-detuned field is a propagating nanofiber-guided mode while the red-detuned field is a standing-wave mode which leads to the periodic axial confinement of the atoms. Here, this standing wave is used for transporting the atoms along the nanofiber by mutually detuning the two counter-propagating fields which form the standing wave. The performance and limitations of the nanofiber-based transport are evaluated and possible applications are discussed.

Note: http://arxiv.org/abs/1207.3021

Rauschenbeutel Group Rauschenbeutel Group