Journal
ACS NANO
Volume 4, Issue 12, Pages 7566-7572Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nn102003c
Keywords
plasmonics; waveguides; surface plasmons; plasmon hybridization; propagation length; nanogap; nanoparticle; metallic film; near-field coupling; transmission; SERS
Categories
Funding
- NSF IGERT [DGE-0504425]
- Welch Foundation [C-1220]
- Department of Defense [N00244-09-0067]
Ask authors/readers for more resources
Au nanoparticles deposited on a metallic film act as nanoantenna receivers and transmitters for the coupling of free-space radiation into, and out of, 20 surface plasmons. Nanosteps, sub-10-nm gaps between metallic films of differing thickness, can also launch and detect surface plasmons. Here we use both types of structures to locally launch propagating surface plasmon waves and probe their properties. Nanoparticle-launched surface plasmons emerge as two lobes of nominally 90 degree angular width, propagating along the direction of incident polarization. Alternatively, plasmons can be launched unidirectionally, by asymmetric illumination of a nanoparticle receiver.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available