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Needle-based refractive index measurement using low-coherence interferometry

Zysk, A.M., Adie, S.G., Armstrong, J.J., Leigh, M.S., Paduch, A., Sampson, David, Nguyen, F.T. and Boppart, S.A. (2007) Needle-based refractive index measurement using low-coherence interferometry Optics Letters, 32 (4). pp. 385-387.

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Abstract

We present a novel needle-based device for the measurement of refractive index and scattering using low-coherence interferometry. Coupled to the sample arm of an optical coherence tomography system, the device detects the scattering response of, and optical path length through, a sample residing in a fixed-width channel. We report use of the device to make near-infrared measurements of tissues and materials with known optical properties. The device could be used to exploit the refractive index variations of tissue for medical and biological diagnostics accessible by needle insertion.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences
Faculty of Health and Medical Sciences
Authors :
NameEmailORCID
Zysk, A.M.
Adie, S.G.
Armstrong, J.J.
Leigh, M.S.
Paduch, A.
Sampson, Davidd.sampson@surrey.ac.uk
Nguyen, F.T.
Boppart, S.A.
Date : 2007
DOI : 10.1364/OL.32.000385
Uncontrolled Keywords : Coherence interferometry, Optical path length, Refractive index measurement, Scattering response, Coherent light, Diagnosis, Interferometry, Light measurement, Optical properties, Optical tomography, Refractive index, Optical devices, article, equipment, equipment design, evaluation, fiber optics, image enhancement, instrumentation, interferometry, methodology, needle, optical coherence tomography, refractometry, reproducibility, sensitivity and specificity, transducer, Equipment Design, Equipment Failure Analysis, Fiber Optics, Image Enhancement, Interferometry, Needles, Refractometry, Reproducibility of Results, Sensitivity and Specificity, Tomography, Optical Coherence, Transducers
Depositing User : Maria Rodriguez-Marquez
Date Deposited : 11 Jun 2018 08:40
Last Modified : 19 Sep 2018 11:32
URI: http://epubs.surrey.ac.uk/id/eprint/846902

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