Combining whispering gallery mode lasers and microstructured optical fibers for in-vivo biosensing applications

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dc.contributor.authorFrançois, A.
dc.contributor.authorRowland, K.
dc.contributor.authorReynolds, T.
dc.contributor.authorNicholls, S.
dc.contributor.authorMonro, T.
dc.contributor.conferencePhotonics North (2013 : Ottawa, Canada)
dc.contributor.editorCheben, P.
dc.contributor.editorSchmid, J.
dc.contributor.editorBoudoux, C.
dc.contributor.editorChen, L.R.
dc.contributor.editorDelage, A.
dc.contributor.editorJanz, S.
dc.contributor.editorKashyap, R.
dc.contributor.editorLockwood, D.J.
dc.contributor.editorLoock, H.P.
dc.contributor.editorMi, Z.
dc.date.issued2013
dc.description.abstractWhispering Gallery Modes (WGMs) have been widely studied for the past 20 years for various applications, including biological sensing. While the different WGM-based sensing approaches reported in the literature enable useful sensor characteristics, at present this technology is not yet mature, mainly for practical reasons. Our work has been focused on developing a simple, yet efficient, WGM-based sensing platform capable of being used as a dip sensor for in-vivo biosensing applications. We recently demonstrated that a dye-doped polymer microresonator, supporting WGMs, positioned onto the tip of a suspended core Microstructured Optical Fiber can be used as a dip sensor. In this architecture, the resonator is located on an air hole next to the fiber core at the fiber's tip, enabling a significant portion of the sphere to overlap with the guided light emerging from the fiber tip. This architecture offers significant benefits that have never been reported in the literature in terms of radiation efficiency, compared to the standard freestanding resonators, which arise from breaking the symmetry of the resonator. In addition to providing the remote excitation and collection of the WGMs' signal, the fiber also allows easy manipulation of the microresonator and the use this sensor in a dip sensing architecture, alleviating the need for a complex microfluidic interface. Here, we present our recent results on the microstructured fiber tip WGM-based sensor, including its lasing behavior and enhancement of the radiation efficiency as a function of the position of the resonator on the fiber tip. We also show that this platform can be used for clinical diagnostics and applying this technology to the detection of Troponin T, an acute myocardial infarction biomarker, down to a concentration of 7.4 pg/mL. © 2013 SPIE.
dc.description.statementofresponsibilityA. François, K.J. Rowland, T. Reynolds, S.J. Nicholls, T.M. Monro
dc.identifier.citationPhotonics North, 2013 / P. Cheben, J. Schmid, C. Boudoux, et al (eds.): 891518
dc.identifier.doi10.1117/12.2037511
dc.identifier.isbn9780819497918
dc.identifier.issn0277-786X
dc.identifier.issn1996-756X
dc.identifier.orcidFrançois, A. [0000-0003-0989-3813]
dc.identifier.orcidReynolds, T. [0000-0003-0543-9170]
dc.identifier.orcidNicholls, S. [0000-0002-9668-4368]
dc.identifier.urihttp://hdl.handle.net/2440/82492
dc.language.isoen
dc.publisherSPIE
dc.publisher.placeOnline
dc.relation.ispartofseriesProceedings of SPIE
dc.rights© 2013 SPIE
dc.source.urihttps://doi.org/10.1117/12.2037511
dc.subjectBiosensors
dc.subjectWhispering Gallery Mode
dc.subjectMicrostructured Optical Fiber
dc.titleCombining whispering gallery mode lasers and microstructured optical fibers for in-vivo biosensing applications
dc.typeConference paper
pubs.publication-statusPublished

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