Research Papers: General

Noncontact speckle-based optical sensor for detection of glucose concentration using magneto-optic effect

[+] Author Affiliations
Nisan Ozana, Yevgeny Beiderman, Amir Shemer, Zeev Zalevsky

Bar-Ilan University, Faculty of Engineering and the Institute of Nanotechnology and Advanced Materials, Ramat Gan 52900, Israel

Arun Anand

MS University of Baroda, Applied Physics Department, Faculty of Technology and Engineering, Optics Laboratory, Vadodara 390001, India

Baharam Javidi

University of Connecticut, Department of Electrical and Computer Engineering, Storrs, Connecticut 06269-4157, United States

Sagi Polani, Ariel Schwarz

ContinUse Biometrics Ltd., Tel-Aviv 6912209, Israel

Javier Garcia

Universitat de València, Departamento de Óptica, Burjassot 46100, Spain

J. Biomed. Opt. 21(6), 065001 (Jun 02, 2016). doi:10.1117/1.JBO.21.6.065001
History: Received February 23, 2016; Accepted May 17, 2016
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Abstract.  We experimentally verify a speckle-based technique for noncontact measurement of glucose concentration in the bloodstream. The final device is intended to be a single wristwatch-style device containing a laser, a camera, and an alternating current (ac) electromagnet generated by a solenoid. The experiments presented are performed in vitro as proof of the concept. When a glucose substance is inserted into a solenoid generating an ac magnetic field, it exhibits Faraday rotation, which affects the temporal changes of the secondary speckle pattern distributions. 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.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Nisan Ozana ; Yevgeny Beiderman ; Arun Anand ; Baharam Javidi ; Sagi Polani, et al.
"Noncontact speckle-based optical sensor for detection of glucose concentration using magneto-optic effect", J. Biomed. Opt. 21(6), 065001 (Jun 02, 2016). ; http://dx.doi.org/10.1117/1.JBO.21.6.065001


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