Ultralow threshold green lasing and optical bistability in ZBNA (ZrF4–BaF2–NaF–AlF3) microspheres

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dc.contributor.author Wu, Yuqiang
dc.contributor.author Ward, Jonathan M.
dc.contributor.author Nic Chormaic, Síle
dc.date.accessioned 2011-02-24T13:10:17Z
dc.date.available 2011-02-24T13:10:17Z
dc.date.copyright 2010
dc.date.issued 2010-02
dc.identifier.citation Wu, Y., Ward, J.M., Nic Chormaic, S., 2010. Ultralow threshold green lasing and optical bistability in ZBNA (ZrF4-BaF2-NaF-AlF3) microspheres. Journal of Applied Physics, 107(3), pp.033103-1 - 033103-6 en
dc.identifier.volume 107 en
dc.identifier.issued 3 en
dc.identifier.startpage 033103-1 en
dc.identifier.endpage 033103-6 en
dc.identifier.issn 0021-8979
dc.identifier.issn 1089-7550
dc.identifier.uri http://hdl.handle.net/10468/226
dc.identifier.doi 10.1063/1.3277024
dc.description.abstract Upconversion lasing and fluorescence from active microspheres fabricated from a novel fluorozirconate, Er3+ doped glass, ZBNA (ZrF4-BaF2-NaF-AlF3), when pumped at 978 nm via a tapered optical fiber is demonstrated. An ultralow, green lasing threshold of similar to 3 mu W for 550 nm emissions is measured. This is one order of magnitude lower than that previously reported for ZBLAN (ZrF4-BaF2-LaF3-AlF3-NaF) microspheres. Optical bistability effects in ZBNA microspheres are reported and the bistable mechanism is discussed and attributed to shifts of the whispering gallery modes due to thermal expansion of the sphere, where heating is achieved by optical pumping around 978 nm. The effect of the bistability on the upconversion lasing is examined and we report multiple bistability loops within the microspheres. en
dc.description.sponsorship Science Foundation Ireland (Grant Nos. 02/IN1/128 and 07/RFP/PHYF518s2); 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/10.1063/1.3277024
dc.rights © 2010 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 Wu, Y., Ward, J.M., Nic Chormaic, S., 2010. Ultralow threshold green lasing and optical bistability in ZBNA (ZrF4-BaF2-NaF-AlF3) microspheres. Journal of Applied Physics, 107(3), pp.033103-1 - 033103-6 and may be found at http://link.aip.org/link/doi/10.1063/1.3277024 en
dc.rights.uri http://www.aip.org/aip/copyright.html en
dc.subject Thermal expansion en
dc.subject Optical fabrication en
dc.subject.lcsh Laser materials en
dc.subject.lcsh Fluorescence en
dc.subject.lcsh Solid-state lasers en
dc.subject.lcsh Optical bistability en
dc.subject.lcsh Optical materials en
dc.subject.lcsh Optical pumping en
dc.subject.lcsh Laser beams en
dc.title Ultralow threshold green lasing and optical bistability in ZBNA (ZrF4–BaF2–NaF–AlF3) microspheres en
dc.type Article (peer-reviewed) en
dc.internal.authorurl http://www.tyndall.ie/research/quantum-optics-group/yuqiang_wu.html en
dc.internal.authorurl http://www.tyndall.ie/research/quantum-optics-group/jonathan_ward.html en
dc.internal.authorurl http://publish.ucc.ie/researchprofiles/D006/snicchormaic 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.authorcontactother Jonathan M. Ward, Photonics Centre, Tyndall National Institute, Prospect Row, Cork, Ireland. +353-21-490-4864 Email: jonathan.ward@tyndall.ie en
dc.internal.availability Full text available en
dc.date.updated 2010-10-12T09:54:30Z
dc.description.version Published Version en
dc.internal.rssid 43334547
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 Journal of Applied Physics en
dc.internal.copyrightchecked RoMEO en
dc.internal.IRISemailaddress s.nicchormaic@ucc.ie en


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