Biswas, Palas and Dey, Tanoy Kumar and Basumallick, Nandini and Sinha, Prasanta Kumar and Dasgupta, Kamal and Bandyopadhyay, Somnath (2014) Design of long period fiber grating with optimal sensitivity for detecting adhesion of nano-layer on the fiber surface. In: 23RD INTERNATIONAL CONFERENCE ON OPTICAL FIBRE SENSORS, JUN 02-06, 2014, Santander, SPAIN.

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Abstract

For detecting bio-molecular interaction using long period grating (LPG) we believe that a quantitative data concerning sensitivity for addition of layers on the surface and subsequently to optimize the same appears to be more usefull than defining LPG sensitivity for a surrounding refractive index change in bulk form. For the first time, to the best of our knowledge, we quantify the shift of resonant wavelength (Delta lambda(res)) of the mode of interest around the transition point as a function of unit bi-layer thickness (Delta d) of poly-electrolyte, deposited by ionic self assembly, and subsequently optimize the sensitivity Delta lambda(res)/Delta d. Experimental result show that a shift of similar to 12.5 nm/bi-layer is possible with optimum number of bi-layer deposition.

Item Type:	Conference or Workshop Item (Paper)
Additional Information:	23rd International Conference on Optical Fibre Sensors, Santander, SPAIN, JUN 02-06, 2014
Subjects:	Processing Science
Divisions:	Fiber Optics and Photonics
Depositing User:	Bidhan Chaudhuri
Date Deposited:	25 Mar 2015 10:25
Last Modified:	11 Mar 2016 17:56
URI:	http://cgcri.csircentral.net/id/eprint/2765

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