title: Multicore fiber for cold-atomic cloud monitoring.
abstract: Thanks to an all solid core photonic crystal fiber (PCF) used as a multicore fiber, we propose and experimentally demonstrate what is to our knowledge a new optical detection scheme for the spontaneous emission collection of cold atoms. A Magneto-Optical Trap (MOT) is placed in front of a polished PCF end-face. As they display a higher optical index than the surrounding cladding silica, the 108 rods (equivalent to a 108 pixels camera) of this PCF are light guiding and behave like an array of detectors. Both global and local properties of the trapped atoms are probed. A MOT lifetime is reported. We also take advantage of the multi-core geometry for a real time detection of the center-of-mass motion of the atomic cloud.
authors: Laboratoire de Physique des Lasers, Atomes et Molécules, Université Lille 1 Sciences et Technologies, CNRS UMR 8523, CERLA, F-59655 Villeneuve d’Ascq Cedex, France. jean-francois.clement@univ-lille1.fr
authors: Jean-François
authors: JF
authors: Clément
authors: Denis
authors: D
authors: Bacquet
authors: Alexandre
authors: A
authors: Kudlinski
authors: Géraud
authors: G
authors: Bouwmans
authors: Olivier
authors: O
authors: Soppera
authors: Jean Claude
authors: JC
authors: Garreau
authors: Pascal
authors: P
authors: Szriftgiser