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- Title
- Optofluidic Fabry-Perot sensor for water solutions at high flow rates
- Author(s)
- Gervinskas, Gediminas; Day, Daniel J.; Juodkazis, Saulius
- Abstract
- Optofluidic sensor for water solutions has been fabricated using a transfer adhesive film and simple all-room-temperature procedures. Performance of a Fabry-Perot (FP) cavity subjected to the high water throughput of ∼ 2 ml per 1 min (at a 0.8 m/s flow velocity) was spectrally characterized. The 25-μm-wide cavity can be repeatedly subjected to pressures causing up to a 1.5% its width’s increase upon pressure cycling. Potential of the new optofluidic platform for applications where (i) large water volumes should be filtered as well as (ii) for measurements of turbulence onset in two-dimensional flows at high 1 m/s velocity are discussed. We show possibility to use FP cavity for the pressure sensing at sensitivity of Δλ/ΔP ≃ 0.075 nm/Pa and for the refractive index sensing at Δλ/Δn ≃ 390 nm per the refractive index unit.
- Publication type
- Journal article
- Research centre
- Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Centre for Micro-Photonics
- Source
- Optical Materials Express, Vol. 2, no. 3 (Mar 2012), pp. 279-286
- Publication year
- 2012
- Keyword(s)
- Fabry-Perot cavity; Fabry-Perot sensors; Optofluidic sensors; Water solutions
- Publisher
- Optical Society of America
- ISSN
- 2159-3930
- Publisher URL
- http://dx.doi.org/10.1364/OME.2.000279
- Copyright
- Copyright © 2012 Optical Society of America. This paper was published in Optics Materials Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OME.2.000279. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
- Full text
- Peer reviewed
