Nanostructured plasmonic gold films for enhanced sensitivity of SPR biological sensing and imaging

Ajay Kumar Agrawal; Nitin Gupta; Abhijit Das; Kaleem Ahmed; Anuj Dhawan

doi:10.1117/12.2511098

7 March 2019 Nanostructured plasmonic gold films for enhanced sensitivity of SPR biological sensing and imaging

Ajay Kumar Agrawal, Nitin Gupta, Abhijit Das, Kaleem Ahmed, Anuj Dhawan

Proceedings Volume 10894, Plasmonics in Biology and Medicine XVI; 108940M (2019) https://doi.org/10.1117/12.2511098
Event: SPIE BiOS, 2019, San Francisco, California, United States

Abstract

We present nanostructured gold films ⎯ with complex plasmonic nanostructures present on the surface of the films ⎯ for enhanced SPR-based sensing and imaging of biomolecules attached to the surface of these films. We employed rigorous coupled wave analysis (RCWA) for simulating the nanostructured plasmonic gold films. In our simulations, surface plasmon polaritons were excited on the surface of the nanostructured gold films using the Kretschmann configuration. We observe that these nanostructured gold films show a significant enhancement in the sensitivity of SPR sensing and imaging of biomolecules as compared to planar gold films when optimal geometries and sizes of the plasmonic nanostructures (present on the surface of the gold film) are employed.

Citation Download Citation

Ajay Kumar Agrawal, Nitin Gupta, Abhijit Das, Kaleem Ahmed, and Anuj Dhawan "Nanostructured plasmonic gold films for enhanced sensitivity of SPR biological sensing and imaging", Proc. SPIE 10894, Plasmonics in Biology and Medicine XVI, 108940M (7 March 2019); https://doi.org/10.1117/12.2511098

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