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The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by Strathclyde researchers, including by researchers from the Physical Activity for Health Group based within the School of Psychological Sciences & Health. Research here seeks to better understand how and why physical activity improves health, gain a better understanding of the amount, intensity, and type of physical activity needed for health benefits, and evaluate the effect of interventions to promote physical activity.

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Comparative study of microfiber and side-polished optical fiber sensors for refractometry in microfluidics

Duduś, Anna A. and Blue, Robert R. and Uttamchandani, Deepak G. (2013) Comparative study of microfiber and side-polished optical fiber sensors for refractometry in microfluidics. IEEE Sensors Journal, 13 (5). pp. 1594-1601.

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A simple theoretical analysis was undertaken to compare the change of guided mode index of microfiber and sidepolished single mode fiber sensors to the refractive index of surrounding fluids. This was followed by an experimental investigation using a broadband Mach-Zehnder interferometer to compare the sensitivity of the two types of sensing fibers by measuring the interferometer response to fluid refractive indices ranging from 1.330 to 1.451. The experiments show that a microfiber sensor of diameter close to 5 ìm and an average length of around 500 ìm generates a response similar to that generated from a side-polished fiber sensor of length 7 mm. A compact microfluidic cell was fabricated to enable a microfiber based refractive index sensor to be used in a microfluidics environment. Experimental refractometric results obtained using this arrangement are reported.