Multilayer MoS 2 Coated Etched Fiber Bragg Grating Based Hydrophone

Sebastian, S and Sridhar, S and Jilin, RA and Varu, SAV and Sreejith, A and Asokan, S (2018) Multilayer MoS 2 Coated Etched Fiber Bragg Grating Based Hydrophone. In: 17th IEEE SENSORS Conference, SENSORS 2018, 28 October 2018 - 31 October 2018, New Delhi.

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Abstract

This paper demonstrates multilayer Molybdenum disulfide (MoS 2 ) coated etched Fiber Bragg Grating (eFBG) as highly sensitive hydrophone. Multilayer coating of MoS 2 on eFBG is achieved using sputtering of Molybdenum (Mo) followed by sulfurization at 450°C in an inert gas atmosphere. MoS 2 coated eFBG subjected to underwater acoustic pressure showed an increase in pressure sensitivity of nearly 20 times at 231Hz in comparison with bare FBG sensors.

Item Type:	Conference Paper
Publication:	Proceedings of IEEE Sensors
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to the Institute of Electrical and Electronics Engineers Inc.
Keywords:	Fiber Bragg gratings; Hydrophones; Inert gases; Layered semiconductors; Multilayers; Sulfur compounds; Underwater acoustics, Acoustic pressure sensors; Etched fiber bragg grating; FBG sensor; Increase in pressure; Inert gas atmosphere; Molybdenum disulfide; Multi-layer-coating, Molybdenum compounds
Department/Centre:	Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	29 Jul 2022 09:46
Last Modified:	29 Jul 2022 09:46
URI:	https://eprints.iisc.ac.in/id/eprint/75043

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