The ratio (ζ) of surface tension to viscosity of liquids can be determined using hollow core photonic crystal fibres (HCPCF), and we show here techniques to determine ζ of glucose levels within fluids, of nano-litre quantities. We demonstrate an optically integrated micro-capillary viscometer, to determine the concentrations of nano-litre solutions based on properties of their flow within HC-PCF. The filling of the fibres with liquids within a given range of refractive index will induce a shift in the photonic band gap of the fibre, allowing guidance of light at wavelengths that were originally outside the bandgap of the HC-PCF.
|Title of host publication||21st International Conference on Optical Fiber Sensors|
|Publication status||Published - 9 Jun 2011|
|Event||21st International Conference on Optical Fiber Sensors - Ottawa, ON, Canada|
Duration: 15 May 2011 → 19 May 2011
|Name||Proceedings of SPIE - The International Society for Optical Engineering|
|Conference||21st International Conference on Optical Fiber Sensors|
|Period||15/05/11 → 19/05/11|
Bibliographical noteCopyright 2011 SPIE. One print or electronic copy may be made for personal use only. Systematic reproduction, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
- biological fluids
- hollow core photonic crystal fibre