Autler-Townes splitting via frequency up-conversion at ultralow-power levels in cold 87 Rb atoms using an optical nanofiber

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dc.contributor.authorKumar, Ravi
dc.contributor.authorGokhroo, Vandna
dc.contributor.authorDeasy, Kieran
dc.contributor.authorNic Chormaic, Síle
dc.contributor.funderOkinawa Institute of Science and Technology Graduate University
dc.contributor.funderJapan Society for the Promotion of Science
dc.date.accessioned2017-08-22T08:56:56Z
dc.date.available2017-08-22T08:56:56Z
dc.date.issued2015
dc.description.abstractThe tight confinement of the evanescent light field around the waist of an optical nanofiber makes it a suitable tool for studying nonlinear optics in atomic media. Here, we use an optical nanofiber embedded in a cloud of laser-cooled Rb-87 for near-infrared frequency up-conversion via a resonant two-photon process. Sub-nW powers of the two-photon radiation, at 780 and 776 nm, copropagate through the optical nanofiber and the generation of 420 nm photons is observed. A measurement of the Autler-Townes splitting provides a direct measurement of the Rabi frequency of the 780 nm transition. Through this method, dephasings of the system can be studied. In this work, the optical nanofiber is used as an excitation and detection tool simultaneously, and it highlights some of the advantages of using fully fibered systems for nonlinear optics with atoms.en
dc.description.sponsorshipJapan Society for the Promotion of Science (26400422)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid53842
dc.identifier.citationKumar, R., Gokhroo, V., Deasy, K. and Chormaic, S. N. (2015) ‘Autler-Townes splitting via frequency up-conversion at ultralow-power levels in cold 87Rb atoms using an optical nanofiber', Physical Review A, 91(5), 053842 (5pp). doi: 10.1103/PhysRevA.91.053842en
dc.identifier.doi10.1103/PhysRevA.91.053842
dc.identifier.issn1050-2947
dc.identifier.issn1094-1622
dc.identifier.issued5
dc.identifier.journaltitlePhysical Review Aen
dc.identifier.urihttps://hdl.handle.net/10468/4476
dc.identifier.volume91
dc.language.isoenen
dc.publisherAmerican Physical Societyen
dc.relation.urihttps://journals.aps.org/pra/abstract/10.1103/PhysRevA.91.053842
dc.rights© 2015, American Physical Societyen
dc.subject2-photon absorptionen
dc.subjectRB vaporen
dc.subjectTransitionen
dc.subjectCoherenten
dc.subjectRubidiumen
dc.subjectLaseren
dc.titleAutler-Townes splitting via frequency up-conversion at ultralow-power levels in cold 87 Rb atoms using an optical nanofiberen
dc.typeArticle (peer-reviewed)en
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