Abstract
The deposition of organic molecules on gold nanoantennas is reported through chemisorption for sensing in the midinfrared (mid-IR) spectral range. The specific nanostructures are gold asymmetric-split ring resonators (A-SRRs) based on circular-geometry with two different lengths. The plasmonic resonant coupling technique was used to match the vibrational responses of the targeted molecules for their enhanced detection. Gold nanostructures are functionalised through chemisorption of octadecanethiol (ODT) in ethanol solution. The molecular vibrational responses were measured using a microscope coupled Fourier Transform Infrared (FTIR) spectroscopy. The experimental findings are closely supported using FDTD simulation. The modified nanoantennas surfaces are capable of supporting wide range of organic-sensing applications.
Original language | English |
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Title of host publication | Metamaterials XI |
Editors | Peter Markos, Tomasz Szoplik, Vladimir Kuzmiak |
Publisher | SPIE |
Volume | 10227 |
ISBN (Electronic) | 9781510609563 |
ISBN (Print) | 9781510609556 |
DOIs | |
Publication status | Published - 16 May 2017 |
Event | SPIE Optics + Optoelectronics 2017 - Prague, Czech Republic Duration: 26 Apr 2017 → 27 Apr 2017 |
Conference
Conference | SPIE Optics + Optoelectronics 2017 |
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Country/Territory | Czech Republic |
City | Prague |
Period | 26/04/17 → 27/04/17 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering