Tapered optical fibers as tools for probing magneto-optical trap characteristics

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dc.contributor.author Morrissey, Michael J.
dc.contributor.author Deasy, Kieran
dc.contributor.author Wu, Yuqiang
dc.contributor.author Chakrabarti, Shrabana
dc.contributor.author Nic Chormaic, Síle
dc.date.accessioned 2011-02-28T13:16:08Z
dc.date.available 2011-02-28T13:16:08Z
dc.date.copyright 2009
dc.date.issued 2009-05-01
dc.identifier.citation Morrissey, M.J., Deasy, K., Wu, Y., Chakrabarti, S., Nic Chormaic, S., 2009. Tapered optical fibers as tools for probing magneto-optical trap characteristics. Review of Scientific Instruments, 80(5), pp.053102-1 - 053102-5 en
dc.identifier.volume 80 en
dc.identifier.issued 5 en
dc.identifier.startpage 053102-1 en
dc.identifier.endpage 053102-5 en
dc.identifier.uri http://hdl.handle.net/10468/233
dc.identifier.doi 10.1063/1.3117201
dc.description.abstract We present a novel technique for measuring the characteristics of a magneto-optical trap (MOT) for cold atoms by monitoring the spontaneous emission from trapped atoms coupled into the guided mode of a tapered optical nanofiber. We show that the nanofiber is highly sensitive to very small numbers of atoms close to its surface. The size and shape of the MOT, determined by translating the cold atom cloud across the tapered fiber, is in excellent agreement with measurements obtained using the conventional method of fluorescence imaging using a charge coupled device camera. The coupling of atomic fluorescence into the tapered fiber also allows us to monitor the loading and lifetime of the trap. The results are compared to those achieved by focusing the MOT fluorescence onto a photodiode and it was seen that the tapered fiber gives slightly longer loading and lifetime measurements due to the sensitivity of the fiber, even when very few atoms are present. en
dc.description.sponsorship Science Foundation Ireland (Grant Nos. 02/IN1/128 and 07/RFP/PHYF518); IRCSET (Embark Initiative) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher American Institute of Physics en
dc.relation.uri http://link.aip.org/link/doi/10.1063/1.3117201
dc.rights © 2009 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Morrissey, M.J., Deasy, K., Wu, Y., Chakrabarti, S., Nic Chormaic, S., 2009. Tapered optical fibers as tools for probing magneto-optical trap characteristics. Review of Scientific Instruments, 80(5), pp.053102-1 - 053102-5 and may be found at http://link.aip.org/link/doi/10.1063/1.3117201 en
dc.rights.uri http://rsi.aip.org/about/rights_and_permissions en
dc.subject Atom-photon collisions en
dc.subject Fibre optic sensors en
dc.subject Laser cooling en
dc.subject Magneto-optical effects en
dc.subject Spontaneous emission en
dc.subject.lcsh Fluorescence en
dc.subject.lcsh Nanophotonics en
dc.subject.lcsh Photodiodes en
dc.subject.lcsh Radiation pressure en
dc.title Tapered optical fibers as tools for probing magneto-optical trap characteristics en
dc.type Article (peer-reviewed) en
dc.internal.authorurl http://publish.ucc.ie/researchprofiles/D006/snicchormaic/pub en
dc.internal.authorurl http://www.tyndall.ie/research/quantum-optics-group/yuqiang_wu.html en
dc.internal.authorcontactother Síle Nic Chormaic, Physics, University College Cork, Cork, Ireland. +353-21-490-3000 Email: s.nicchormaic@ucc.ie en
dc.internal.authorcontactother Yuqiang Wu, Photonics Centre, Tyndall National Institute, Prospect Row, Cork, Ireland. +353-21-490-4864 Email: yuqiang.wu@tyndall.ie en
dc.internal.availability Full text available en
dc.date.updated 2010-10-12T09:57:14Z
dc.description.version Published Version en
dc.internal.rssid 43335076
dc.contributor.funder Science Foundation Ireland en
dc.contributor.funder Irish Research Council for Science Engineering and Technology en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Review of Scientific Instruments en
dc.internal.copyrightchecked RoMEO en
dc.internal.IRISemailaddress s.nicchormaic@ucc.ie en


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