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Proceedings Paper

Non-contact optical sensor for detection of glucose concentration using a magneto-optic effect
Author(s): Nisan Ozana; Yevgeny Beiderman; Arun Anand; Baharam Javidi; Sagi Polani; Ariel Schwarz; Amir Shemer; Javier García; Zeev Zalevsky
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Paper Abstract

In this paper we aim to experimentally verify a speckle based technique for non-contact measurement of glucose concentration in blood stream while the vision for the final device aims to contain a single wristwatch-style device containing an AC (alternating) electro-magnet generated by a solenoid, a laser and a camera. The experiments presented in work are performed in-vitro in order to verify the effects that are responsible for the operation principle. When a glucose substance is inserted into a solenoid generating an alternating magnetic field it exhibits Faraday rotation which affects the temporal changes of the secondary speckle patterns distribution. The temporal frequency resulting from the AC magnetic field was found to have a lock-in amplification role which increased the observability of the relatively small magneto-optic effect. Experimental results to support the proposed concept are presented.

Paper Details

Date Published: 22 April 2016
PDF: 8 pages
Proc. SPIE 9721, Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XIII, 97210S (22 April 2016); doi: 10.1117/12.2211615
Show Author Affiliations
Nisan Ozana, Bar-Ilan Univ. (Israel)
Yevgeny Beiderman, Bar-Ilan Univ. (Israel)
Arun Anand, The Maharaja Sayajirao Univ. of Baroda (India)
Baharam Javidi, Univ. of Connecticut (United States)
Sagi Polani, ContinUse Biometrics Ltd. (Israel)
Ariel Schwarz, ContinUse Biometrics Ltd. (Israel)
Amir Shemer, Bar-Ilan Univ. (Israel)
Javier García, Univ. de València (Spain)
Zeev Zalevsky, Bar-Ilan Univ. (Israel)

Published in SPIE Proceedings Vol. 9721:
Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XIII
Alexander N. Cartwright; Dan V. Nicolau; Dror Fixler, Editor(s)

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