Paul, J. , McMeekin, S. G., De La Rue, R. M. and Johnson, N. P. (2017) Deposition of Organic Molecules on Gold Nanoantennas for Sensing. In: SPIE Optics + Optoelectronics: Metamaterials XI, Prague, Czech Republic, 24-27 Apr 2017, 102270Z. (doi: 10.1117/12.2269937)
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151070.pdf - Accepted Version 874kB |
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 ‘arc’ 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.
| Item Type: | Conference Proceedings |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Johnson, Dr Nigel and De La Rue, Professor Richard and Paul, Dr Jharna |
| Authors: | Paul, J., McMeekin, S. G., De La Rue, R. M., and Johnson, N. P. |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| ISSN: | 0277-786X |
| Copyright Holders: | Copyright © 2017 SPIE |
| Publisher Policy: | Reproduced in accordance with the copyright policy of the publisher |
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