Abstract
The detection of probe molecules at ultralow concentrations, even at the
single-molecule level, can be addressed with the breakthrough concept of
plasmonic hot-spot engineering. In view of that, the fabrication of nanostructures
endowed with sub-10 nm gaps and extremely large near-field enhancement
has gained increasing attention, becoming a key-condition for improved
sensitivity. The present work demonstrates a new perspective in ultrasensitive
detection by engineering every individual plasmonic nanostructure with a
giant electric field confinement and superior hot-spot densities, thus eliminating
the need for extremely narrow interparticle separations.
single-molecule level, can be addressed with the breakthrough concept of
plasmonic hot-spot engineering. In view of that, the fabrication of nanostructures
endowed with sub-10 nm gaps and extremely large near-field enhancement
has gained increasing attention, becoming a key-condition for improved
sensitivity. The present work demonstrates a new perspective in ultrasensitive
detection by engineering every individual plasmonic nanostructure with a
giant electric field confinement and superior hot-spot densities, thus eliminating
the need for extremely narrow interparticle separations.
| Originalsprog | Engelsk |
|---|---|
| Artikelnummer | 1600836 |
| Tidsskrift | Advanced Optical Materials |
| Vol/bind | 5 |
| Udgave nummer | 4 |
| Antal sider | 7 |
| ISSN | 2195-1071 |
| DOI | |
| Status | Udgivet - 2017 |