TITLE

Surface plasmon based thermo-optic and temperature sensor for microfluidic thermometry

AUTHOR(S)
Davis, L. J.; Deutsch, M.
PUB. DATE
November 2010
SOURCE
Review of Scientific Instruments;Nov2010, Vol. 81 Issue 11, p114905
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report on a noninteracting technique for the thermal characterization of fluids based on surface plasmon resonance interrogation. Using liquid volumes less than 20 μl, we have determined the materials' thermo-optic coefficients with an accuracy of better than 1×10-5 °C-1 and demonstrated temperature sensing with an accuracy of 0.03 °C. The apparatus employs a low-power probe laser, requiring only a single wavelength, polarization, and interrogation angle for accurate characterization. The device is particularly suited for precise diagnostics of liquids and gases within microfluidic systems and may also be readily integrated into a variety of lab-on-chip platforms, providing rapid and accurate temperature diagnostics.
ACCESSION #
55509292

 

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