Electron- and photon-induced plasmonic excitations in two-dimensional silver nanostructures
- International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044 (Japan)
Plasmons are the quasi particles of collective oscillations of electrons and form the basis of plasmonics and optical metamaterials. We combined electron spectroscopy and optical spectroscopy techniques to study plasmons in atomically smooth Ag films and in epitaxial Ag nanodisks to map the momentum-energy dispersion curves of the two-dimensional (2D) sheet plasmon and the quasi-2D plasmons to clarify the essential differences between them. Our experimental results combined with the results of numerical electromagnetic simulations showed that the bulk-like nature of the silver plasmon starts in layers that are only two atoms thick.
- OSTI ID:
- 22304450
- Journal Information:
- Applied Physics Letters, Vol. 104, Issue 25; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
Similar Records
Surface plasmon resonance in nanostructured Ag incorporated ZnS films
Ultrafast dynamics of metal plasmons induced by 2D semiconductor excitons in hybrid nanostructure arrays
STEM/EELS Imaging of Magnetic Hybridization in Symmetric and Symmetry-Broken Plasmon Oligomer Dimers and All-Magnetic Fano Interference
Journal Article
·
Thu Oct 15 00:00:00 EDT 2015
· AIP Advances
·
OSTI ID:22304450
Ultrafast dynamics of metal plasmons induced by 2D semiconductor excitons in hybrid nanostructure arrays
Journal Article
·
Thu Nov 17 00:00:00 EST 2016
· ACS Photonics
·
OSTI ID:22304450
+9 more
STEM/EELS Imaging of Magnetic Hybridization in Symmetric and Symmetry-Broken Plasmon Oligomer Dimers and All-Magnetic Fano Interference
Journal Article
·
Thu Sep 29 00:00:00 EDT 2016
· Nano Letters
·
OSTI ID:22304450
+8 more