A novel interferometric sensor for measuring the refractive index of a solution based on nanofiber

Pinghui Wu; Chenghua Sui; Gaoyao Wei; Danyang Xu

doi:10.1117/12.851658

25 November 2009 A novel interferometric sensor for measuring the refractive index of a solution based on nanofiber

Pinghui Wu, Chenghua Sui, Gaoyao Wei, Danyang Xu

Proceedings Volume 7634, Optical Sensors and Biophotonics; 763418 (2009) https://doi.org/10.1117/12.851658
Event: Asia Communications and Photonics, 2009, Shanghai, Shanghai , China

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.

Citation Download Citation

Pinghui Wu, Chenghua Sui, Gaoyao Wei, and Danyang Xu "A novel interferometric sensor for measuring the refractive index of a solution based on nanofiber", Proc. SPIE 7634, Optical Sensors and Biophotonics, 763418 (25 November 2009); https://doi.org/10.1117/12.851658

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