Design of an optical sensor based on plasmonic nanostructures

Marwa M. Tharwat; Haya AlSharif; Haifaa Alshabani; Eilaf Qadi; Maha Sultan

doi:10.1117/12.2227890

18 April 2016 Design of an optical sensor based on plasmonic nanostructures

Marwa M. Tharwat, Haya AlSharif, Haifaa Alshabani, Eilaf Qadi, Maha Sultan

Proceedings Volume 9883, Metamaterials X; 98830G (2016) https://doi.org/10.1117/12.2227890
Event: SPIE Photonics Europe, 2016, Brussels, Belgium

Abstract

Plasmonic nano-structured array sensors have been highlighted by their tremendously promising applications, such as the surface plasmon resonance (SPR) optical biosensors. In this paper, within the visible spectrum region, the optical transmission properties of a metallic thin film deposited over dielectric films of various refraction indices are investigated. With finite difference time domain (FDTD) method, we investigate the optical transmission spectra of such plasmonic structures based on both nano-holes and nano-disc arrays. This investigation includes monitoring the modification in both the transmission resonance wavelengths and peak transmittance. The results of this study provide a better understanding of the interaction between light and plasmonic nano-hole and nano-disc arrays. It shows that the changing the shapes of the nano-holes can affect the resonance wavelengths and the intensity of transmitted spectra and alter its resonance peak transmittance values. We found that the interaction coupling between the localized plasmons (LSP) and the propagating surface plasmons (PSP) can be tuned to boost the performance of the optical sensor.

Conference Presentation

Citation Download Citation

Marwa M. Tharwat, Haya AlSharif, Haifaa Alshabani, Eilaf Qadi, and Maha Sultan "Design of an optical sensor based on plasmonic nanostructures", Proc. SPIE 9883, Metamaterials X, 98830G (18 April 2016); https://doi.org/10.1117/12.2227890

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