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dc.contributor.authorForeman, M.R.
dc.contributor.authorAvino, Saverio
dc.contributor.authorZullo, Rosa
dc.contributor.authorLoock, Hans-Peter
dc.contributor.authorVollmer, F.
dc.contributor.authorGagliardi, G.
dc.date.accessioned2016-02-25T20:41:04Z
dc.date.available2016-02-25T20:41:04Z
dc.date.issued2016-02-25
dc.identifier.issn1951-6355 (print)
dc.identifier.issn1951-6401 (online)
dc.identifier.otherDOI: 10.1140/epjst/e2014-02240-9
dc.identifier.urihttp://hdl.handle.net/1974/14079
dc.description.abstractWhispering gallery mode particle sensing experiments are commonly performed with solid resonators, whereby the sensing volume is limited to the weak evanescent tail of the mode near the resonator surface. In this work we discuss in detail the sensitivity enhancements achievable in liquid droplet resonators wherein the stronger internal fields and convenient means of particle delivery can be exploited. Asymptotic formulae are derived for the relative resonance shift, line broadening and mode splitting of TE and TM modes in liquid droplet resonators. As a corollary the relative fraction of internal and external mode energy follows, which is shown to govern achievable sensitivity enhancements of solute concentration measurements in droplet sensors. Experimental measurements of nanoparticle concentration based on whispering gallery mode resonance broadening are also presented.en_US
dc.language.isoenen_US
dc.subjectNanoparticle Detectionen_US
dc.subjectLiquid Droplet Resonatorsen_US
dc.titleEnhanced Nanoparticle Detection with Liquid Droplet Resonatorsen_US
dc.typejournal articleen_US


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