Abstract
This paper describes three-dimensional (3D) nanohole arrays whose high optical transmission is mediated more by localized surface plasmon (LSP) excitations than by surface plasmon polaritons (SPPs). First, LSPs on 3D hole arrays lead to optical transmission an order of magnitude higher than 2D planar hole arrays. Second, LSP-mediated transmission is broadband and more tunable than SPP-enhanced transmission, which is restricted by Bragg coupling. Third, for the first time, two types of surface plasmons can be selectively excited and manipulated on the same plasmonic substrate. This new plasmonic substrate fabricated by high-throughput nanolithography techniques paves the way for cutting-edge optoelectronic and biomedical applications.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 3173-3178 |
| Number of pages | 6 |
| Journal | Nano letters |
| Volume | 10 |
| Issue number | 8 |
| DOIs | |
| State | Published - Aug 11 2010 |
Funding
Keywords
- Nanohole array
- enhanced optical transmission
- localized surface plasmon
- molding
- plasmonics
- surface plasmon polariton
ASJC Scopus subject areas
- General Chemistry
- Condensed Matter Physics
- Mechanical Engineering
- Bioengineering
- General Materials Science