Novel compact architecture for high-resolution sensing with plasmonic gratings in conical mounting

Gianluca Ruffato; Elisabetta Pasqualotto; Agnese Sonato; Gabriele Zacco; Davide Silvestri; Monica Dettin; Margherita Morpurgo; Alessandro De Toni; Filippo Romanato

doi:10.1117/12.2014272

29 May 2013 Novel compact architecture for high-resolution sensing with plasmonic gratings in conical mounting

Gianluca Ruffato, Elisabetta Pasqualotto, Agnese Sonato, Gabriele Zacco, Davide Silvestri, Monica Dettin, Margherita Morpurgo, Alessandro De Toni, Filippo Romanato

Author Affiliations +

Proceedings Volume 8722, Fiber Optic Sensors and Applications X; 87220U (2013) https://doi.org/10.1117/12.2014272
Event: SPIE Defense, Security, and Sensing, 2013, Baltimore, Maryland, United States

Abstract

A novel compact architecture implementing grating-coupled surface plasmon resonance (GCSPR) based on polarization modulation in conical mounting is presented. In this system a plasmonic grating is azimuthally rotated in order to support the excitation of high-sensitivity surface plasmon polaritons (SPPs). At SPP resonance, a scan of the incident polarization is performed before and after the binding event and the phase term of the output trend is exploited as sensing parameter. The mechanical complexity of the SPR system is significantly reduced and a resolution down to 10^-7 refractive index units is assured. In this work a numerical study of the polarization-based grating-coupled SPR technique is performed and analyzed with Chandezon’s method. Therefore an experimental test on an assembled prototype is presented and applied to the detection of binding events on the grating surface (avidin/biotin reaction, DNA/PNA probes).

Citation Download Citation

Gianluca Ruffato, Elisabetta Pasqualotto, Agnese Sonato, Gabriele Zacco, Davide Silvestri, Monica Dettin, Margherita Morpurgo, Alessandro De Toni, and Filippo Romanato "Novel compact architecture for high-resolution sensing with plasmonic gratings in conical mounting", Proc. SPIE 8722, Fiber Optic Sensors and Applications X, 87220U (29 May 2013); https://doi.org/10.1117/12.2014272

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