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Refractive Index Measurement within a Photonic Crystal Fibre Based on Short Wavelength Diffraction
School of Chemistry & Optical Fibre Technology Centre, University of Sydney, 206 National Innovation Centre, ATP, Sydney, NSW 1430, Australia
School of Electrical and Information Engineering, University of Sydney, NSW 2006, Australia
Department of Physics and Astronomy and Interdisciplinary Nanoscience Center (iNANO), University of Aarhus, Ny Munkegade, Building 1520, DK-8000 Århus C, Denmark
School of Physics, University of Sydney, NSW 2006, Australia
* Author to whom correspondence should be addressed.
Received: 18 September 2007; Accepted: 22 October 2007 / Published: 30 October 2007
Abstract: A new class of refractive index sensors using solid core photonic crystal fibres isdemonstrated. Coherent scattering at the cladding lattice is used to optically characterizematerials inserted into the fibre holes. The liquid to solid phase transition of water uponfreezing to ice 1h is characterized by determining the refractive index.
Keywords: optical fibre sensors; gratings; diffraction; photonic crystal fibres; microstructured fibres; capillary; ice.
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Martelli, C.; Canning, J.; Kristensen, M.; Groothoff, N. Refractive Index Measurement within a Photonic Crystal Fibre Based on Short Wavelength Diffraction. Sensors 2007, 7, 2492-2498.
Martelli C, Canning J, Kristensen M, Groothoff N. Refractive Index Measurement within a Photonic Crystal Fibre Based on Short Wavelength Diffraction. Sensors. 2007; 7(11):2492-2498.
Martelli, Cicero; Canning, John; Kristensen, Martin; Groothoff, Nathaniel. 2007. "Refractive Index Measurement within a Photonic Crystal Fibre Based on Short Wavelength Diffraction." Sensors 7, no. 11: 2492-2498.