Sensitivity enhancement of a surface plasmon resonance based tapered fiber optic sensor using a high index dielectric layer

Priya Bhatia; B. D. Gupta

doi:10.1117/12.897798

23 August 2011 Sensitivity enhancement of a surface plasmon resonance based tapered fiber optic sensor using a high index dielectric layer

Priya Bhatia, B. D. Gupta

Author Affiliations +

Proceedings Volume 8173, Photonics 2010: Tenth International Conference on Fiber Optics and Photonics; 81731T (2011) https://doi.org/10.1117/12.897798
Event: International Conference on Fiber Optics and Photonics, 2010, Guwahati, India

Abstract

Surface plasmon resonance based tapered fiber optic refractive index sensor incorporating an additional high index dielectric layer between metal and sensing medium using wavelength interrogation method is analyzed. The simulation is carried out for gold and silver metals. The simulation predicts, for a given taper ratio, the increase in the sensitivity of the sensor with increase in the thickness of the dielectric layer. The sensitivity also increases with the increase in the taper ratio. The advantages of additional layer of dielectric, in addition to the increase in sensitivity, are the protection of metallic layer from oxidation and the tuning of wavelength range of operation of the sensor.

Citation Download Citation

Priya Bhatia and B. D. Gupta "Sensitivity enhancement of a surface plasmon resonance based tapered fiber optic sensor using a high index dielectric layer", Proc. SPIE 8173, Photonics 2010: Tenth International Conference on Fiber Optics and Photonics, 81731T (23 August 2011); https://doi.org/10.1117/12.897798

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available