Refractometric micro-sensor using a mirrored capillary resonator

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dc.contributor.authorMorrish, W.
dc.contributor.authorWest, P.
dc.contributor.authorOrlando, N.
dc.contributor.authorKlantsataya, E.
dc.contributor.authorGardner, K.
dc.contributor.authorLane, S.
dc.contributor.authorDecorby, R.
dc.contributor.authorFrançois, A.
dc.contributor.authorMeldrum, A.
dc.date.issued2016
dc.descriptionPublished 17 Oct 2016
dc.description.abstractWe report on a flow-through optical sensor consisting of a microcapillary with mirrored channels. Illuminating the structure from the side results in a complicated spectral interference pattern due to the different cavities formed between the inner and outer capillary walls. Using a Fourier transform technique to isolate the desired channel modes and measure their resonance shift, we obtain a refractometric detection limit of (6.3 ± 1.1) x 10−6 RIU near a center wavelength of 600 nm. This simple device demonstrates experimental refractometric sensitivities up to (5.6 ± 0.2) x 102 nm/RIU in the visible spectrum, and it is calculated to reach 1540 nm/RIU with a detection limit of 2.3 x 10−6 RIU at a wavelength of 1.55 µm. These values are comparable to or exceed some of the best Fabry-Perot sensors reported to date. Furthermore, the device can function as a gas or liquid sensor or even as a pressure sensor owing to its high refractometric sensitivity and simple operation.
dc.description.statementofresponsibilityWilliam Morrish, Peter West, Nathan Orlando, Elizaveta Klantsataya, Kirsty Gardner, Stephen Lane, Raymond Decorby, Alexandre François, and Alkiviathes Meldrum
dc.identifier.citationOptics Express, 2016; 24(22):24959-24970
dc.identifier.doi10.1364/OE.24.024959
dc.identifier.issn1094-4087
dc.identifier.issn1094-4087
dc.identifier.orcidKlantsataya, E. [0000-0001-7029-3337]
dc.identifier.orcidFrançois, A. [0000-0003-0989-3813]
dc.identifier.urihttp://hdl.handle.net/2440/103126
dc.language.isoen
dc.publisherOptical Society of America
dc.rights© 2016 Optical Society of America. Open Access - CC BY license.
dc.source.urihttps://doi.org/10.1364/oe.24.024959
dc.titleRefractometric micro-sensor using a mirrored capillary resonator
dc.typeJournal article
pubs.publication-statusPublished

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