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Proceedings Paper

A novel interferometric sensor for measuring the refractive index of a solution based on nanofiber
Author(s): Pinghui Wu; Chenghua Sui; Gaoyao Wei; Danyang Xu
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Paper Abstract

A novel refractometric sensor based on nanofiber is presented. It is used to measure the refractive indices of glucose solutions of different concentrations. The sensor has a high sensitivity and can detect an index variation of ~10-6. In addition, by solving Maxwell equations and numerical calculations, phase shift of nanofiber caused by index change of ambient medium is obtained. Experimental results show that the measured values are in close agreement with the theoretical values. The stability of the sensor can be applied to many fields, such as biological, chemical and pharmaceutical and process control applications.

Paper Details

Date Published: 25 November 2009
PDF: 5 pages
Proc. SPIE 7634, Optical Sensors and Biophotonics, 763418 (25 November 2009); doi: 10.1117/12.851658
Show Author Affiliations
Pinghui Wu, Zhejiang Univ. of Technology (China)
Chenghua Sui, Zhejiang Univ. of Technology (China)
Gaoyao Wei, Zhejiang Univ. of Technology (China)
Danyang Xu, Zhejiang Univ. of Technology (China)

Published in SPIE Proceedings Vol. 7634:
Optical Sensors and Biophotonics
Xingde Li; Qingming Luo; Vasilis Ntziachristos; Yoshiaki Yasuno, Editor(s)

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