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Optical Materials Express

Optical Materials Express

  • Editor: David J. Hagan
  • Vol. 2, Iss. 3 — Mar. 1, 2012
  • pp: 279–286

Optofluidic Fabry-Pérot sensor for water solutions at high flow rates

Gediminas Gervinskas, Daniel J. Day, and Saulius Juodkazis  »View Author Affiliations

Optical Materials Express, Vol. 2, Issue 3, pp. 279-286 (2012)

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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 ΔλP ≃ 0.075 nm/Pa and for the refractive index sensing at Δλn ≃ 390 nm per the refractive index unit.

© 2012 OSA

OCIS Codes
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(120.5475) Instrumentation, measurement, and metrology : Pressure measurement
(310.6845) Thin films : Thin film devices and applications

ToC Category:
Thin Films

Original Manuscript: January 10, 2012
Revised Manuscript: February 6, 2012
Manuscript Accepted: February 6, 2012
Published: February 16, 2012

Gediminas Gervinskas, Daniel J. Day, and Saulius Juodkazis, "Optofluidic Fabry-Pérot sensor for water solutions at high flow rates," Opt. Mater. Express 2, 279-286 (2012)

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