| Jahr | 2014 |
| Autor(en) | Christian Huck, Frank Neubrech, Jochen Vogt, Andrea Toma, David Gerbert, Julia Katzmann, Thomas Härtling, and Annemarie Pucci |
| Titel | Surface-Enhanced Infrared Spectroscopy Using Nanometer-Sized Gaps |
| KIP-Nummer | HD-KIP 14-15 |
| KIP-Gruppe(n) | F6 |
| Dokumentart | Paper |
| Keywords (angezeigt) | plasmonic, nanogaps, surface-enhanced infrared absorption, SEIRA, optical nanoantenna, infrared |
| Quelle | ACS Nano, Vol. 8, No. 5 (2014), pp 4908–4914 |
| doi | doi:10.1021/nn500903v |
| Abstract (en) | We report on the near-field coupling of individual gold nanoantennas arranged in tip-to-tip dimer configuration, leading to strong electromagnetic field enhancements in the infrared, which is of great interest for sensing applications such as surface-enhanced infrared spectroscopy. We quantitatively evaluated the enhancement of vibrational excitations of a 5 nm thick test layer of 4,4′-bis(N-carbazolyl)-1,1′-biphenyl as a function of different gap sizes. The dimers with the smallest gaps under investigation (~3 nm) lead to more than 1 order of magnitude higher signal enhancement with respect to gaps of 50 nm width. The comparison of experimental data and finite-difference time-domain simulations reveals a nonperfect filling of the gaps with sizes below 10 nm, which means that morphological information on the nanoscale is obtained additionally to chemical information. |
| bibtex | @article{Huck14a,
author = {Huck, Christian and Neubrech, Frank and Vogt, Jochen and Toma, Andrea and Gerbert, David and Katzmann, Julia and H\"artling, Thomas and Pucci, Annemarie},
title = {Surface-Enhanced Infrared Spectroscopy Using Nanometer-Sized Gaps},
journal = {ACS Nano},
year = {2014},
volume = {8},
number = {5},
pages = {4908-4914},
month = {05},
doi = {10.1021/nn500903v},
url = {http://pubs.acs.org/doi/abs/10.1021/nn500903v}
} |
| Referenz | |
| URL | http://pubs.acs.org/doi/abs/10.1021/nn500903v |
