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Open AccessArticle

Fibre Coupled Photonic Crystal Cavity Arrays on Transparent Substrates for Spatially Resolved Sensing

Department of Physics, University of York, York, YO10 5DD, UK,
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Photonics 2014, 1(4), 412-420; https://doi.org/10.3390/photonics1040412
Received: 14 October 2014 / Revised: 30 October 2014 / Accepted: 30 October 2014 / Published: 3 November 2014
(This article belongs to the Special Issue Photonic Crystal Sensors)
We introduce a photonic crystal cavity array realised in a silicon thin film and placed on polydimethlysiloxane (PDMS) as a new platform for the in-situ sensing of biomedical processes. Using tapered optical fibres, we show that multiple independent cavities within the same waveguide can be excited and their resonance wavelength determined from camera images without the need for a spectrometer. The cavity array platform combines sensing as a function of location with sensing as a function of time. View Full-Text
Keywords: photonic crystal sensors; tapered fibre; PDMS transfer photonic crystal sensors; tapered fibre; PDMS transfer
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Scullion, M.G.; Fischer, M.; Krauss, T.F. Fibre Coupled Photonic Crystal Cavity Arrays on Transparent Substrates for Spatially Resolved Sensing. Photonics 2014, 1, 412-420.

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