Bandyopadhyay, Sankhyabrata and Basumallick, Nandini and Bysakh, Sandip and Dey, Tanoy Kumar and Biswas, Palas and Bandyopadhyay, Somnath (2018) Design of turn around point long period fiber grating sensor with Au-nanoparticle self monolayer. Optics and Laser Technology, 102. pp. 254-261. ISSN 0030-3992

PDF - Published Version Restricted to Registered users only Download (2271Kb) | Request a copy

Abstract

In this paper studies on the design and fabrication of a long period fiber grating (LPFG) with a self mono layer of gold nanoparticle (AuNP) has been presented. Refractive index (RI) sensitivity of a dispersed cladding mode (DCM) near turn around point (TAP) of its phase matching curve (PMC) has been investigated with and also without AuNP coated LPFG. The typical role played by the intermediate layer of AuNP on the effective index and thus on the sensitivity of the cladding mode to the surrounding RI has also been explored by carrying out coupled mode analysis of the requisite multilayer waveguide. Deposition of AuNP enhanced the sensitivity by more than a factor of 2. Measured sensitivity was found to be 3928 nm/refractive index unit (RIU) in the range of 1.3333-1.3428. (C) 2017 Published by Elsevier Ltd.

Item Type:	Article
Subjects:	Processing Science
Divisions:	Fiber Optics and Photonics
Depositing User:	Bidhan Chaudhuri
Date Deposited:	30 Aug 2018 07:36
Last Modified:	30 Aug 2018 07:36
URI:	http://cgcri.csircentral.net/id/eprint/4266

Actions (login required)

View Item