Reflectance-based low-cost disposable optical fiber surface plasmon resonance probe with enhanced biochemical sensitivity

Papiya Dhara; Vinod Kumar Singh; Massimo Olivero; Guido Perrone

doi:10.1117/1.OE.55.4.046114

26 April 2016 Reflectance-based low-cost disposable optical fiber surface plasmon resonance probe with enhanced biochemical sensitivity

Papiya Dhara, Vinod Kumar Singh, Massimo Olivero, Guido Perrone

Author Affiliations +

Optical Engineering, Vol. 55, Issue 4, 046114 (April 2016). https://doi.org/10.1117/1.OE.55.4.046114

Abstract

A reflectance-based surface plasmon resonance (SPR) fiber sensor with enhanced sensitivity for biochemical sensing is reported after comparing its result with the transmittance-based SPR optical fiber sensors. The fabricated SPR sensor contains a gold-coated multimode fiber with the implementation of a standard source-sensor-spectrometer interrogation system. As the refractive index of the liquid under test is increased, a redshift of the SPR is observed. The coupling of the source to the fiber sensor is optimized by investigating the effect of an intentional misalignment in transmission-based setup. When a fiber tip coated with the silver mirror and the bifurcated fiber bundle is used, an alignment-free disposable sensor probe is achieved. A comprehensive characterization of the proposed reflectance-based SPR probe is discussed. The maximum sensitivity of 3212.19 nm/refractive index unit (RIU) is obtained.

Citation Download Citation

Papiya Dhara, Vinod Kumar Singh, Massimo Olivero, and Guido Perrone "Reflectance-based low-cost disposable optical fiber surface plasmon resonance probe with enhanced biochemical sensitivity," Optical Engineering 55(4), 046114 (26 April 2016). https://doi.org/10.1117/1.OE.55.4.046114

Published: 26 April 2016

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