Journal
ACS NANO
Volume 6, Issue 2, Pages 1299-1307Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nn2040389
Keywords
plasmon; gold; nanocubes; photoisomerization; near-field photochemical imaging; near-field depolarization; azobenzene; electromagnetic hot spot; electromagnetic cold spots
Categories
Funding
- Partner University Funds [PUF2010]
- NSF MRSEC [DMR-1121262]
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]
- European community
- HYN-NOV
- NANO'MAT
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1121262] Funding Source: National Science Foundation
Ask authors/readers for more resources
We report a near-field imaging study of colloidal gold nanocubes. This is accomplished through a photochemical imaging method in which molecular displacements are vectorial in nature, enabling sensitivity to the polarization of the optical near-field of the nanocubes. We analyze the confinement of both electromagnetic hot and cold spots with a resolution of lambda/35 and emphasize the particularly high spatial confinement of cold spots. The concept of a cold spot complements the well-known electromagnetic hot spot but can have significant advantages. The application of the ultraconfined cold spots to high resolution Imaging and spectroscopy is discussed.
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
Share Paper
