A D-shaped refractive index SPR fiber optic sensor for NIR region

Ananya Banerjee; Rahul Dahiya; Jaisingh Thangaraj; Rakesh S. Moriangthem

doi:10.1117/12.2665093

22 May 2023 A D-shaped refractive index SPR fiber optic sensor for NIR region

Ananya Banerjee, Rahul Dahiya, Jaisingh Thangaraj, Rakesh S. Moriangthem

Proceedings Volume 12327, SPIE Future Sensing Technologies 2023; 123271L (2023) https://doi.org/10.1117/12.2665093
Event: SPIE Future Sensing Technologies, 2023, Yokohama, Japan

Conference Poster

Abstract

In this paper, we propose a Refractive index Fiber-Optic SPR sensor with a D-shaped structure. Due to numerous advantages such as miniaturized size, fast response, and immunity to electromagnetic interference, optical fiber has been comprehensively used for different sensing applications. It consists of a multi-mode sensor with a bi-metallic thin film structure with Ag and AlSb as the sensing layer. The refractive index (RI) of the testing solution gets incremented from 1.37 till 1.40. The refractive index sensitivity gets varied non-linearly from 15,400 to 30,800 nm/RIU in the NIR region. Fabrication of the sensor is easier and thereby it is suitable for any sensing environment.

Citation Download Citation

Ananya Banerjee, Rahul Dahiya, Jaisingh Thangaraj, and Rakesh S. Moriangthem "A D-shaped refractive index SPR fiber optic sensor for NIR region", Proc. SPIE 12327, SPIE Future Sensing Technologies 2023, 123271L (22 May 2023); https://doi.org/10.1117/12.2665093

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