Humidity Sensing Using Gelatin and Cobalt Chloride Coating on Indium Tin Oxide-Coated Long-Period Grating

., Nidhi and Kaler, R.S. and Kapur, Pawan (2014) Humidity Sensing Using Gelatin and Cobalt Chloride Coating on Indium Tin Oxide-Coated Long-Period Grating. Fiber and Integrated Optics, 33 (1-2). pp. 120-125. ISSN 0146-8030 (Print), 1096-4681 (Online)

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Official URL: http://www.tandfonline.com/doi/abs/10.1080/0146803...

Abstract

In this article, humidity sensing using gelatin and cobalt chloride on indium tin oxide coated long-period gratings was proposed and demonstrated. First, a thin overlay of indium tin oxide was deposited on a long-period grating by using a simple dip coating methodology. Similarly, a combination of gelatin and cobalt chloride was deposited onto the indium tin oxide layer. A field emission scanning electron microscope provided detailed evidence of the attachment of amalgamation on long-period gratings. The designed sensor showed a significant shift in the resonance wavelength when the relative humidity varied from 40% to 95%, with a sensitivity of 0.12 nm/% relative humidity and an accuracy of 98.45%.

Item Type: Article
Uncontrolled Keywords: long-period grating, humidity sensor, indium tin oxide
Subjects: CSIO > Optics
CSIO > Photonics Instrumentation
Divisions: Photonics Instrumentation
Depositing User: Ms. Jyotsana
Date Deposited: 09 Aug 2018 12:07
Last Modified: 09 Aug 2018 12:07
URI: http://csioir.csio.res.in/id/eprint/557

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