Observation of two surface-plasmon modes on gold particles
Journal Article
·
· Phys. Rev. B: Condens. Matter; (United States)
Annealed, thin films of gold were studied by electron microscopy and optical transmission. The particles ranged in size from less than 5 to 100 nm (longest dimensions). The observation of two surface-plasmon peaks was analyzed by treating the particles as oblate spheroids in which the average shape, as determined by optical measurements, is governed by the heat treatment and evaporation thickness. The depolarizing effect of the substrate was clearly demonstrated by shifts in the frequencies of the resonance peaks. Two resonances associated with surface-plasmon modes of oscillation were observed for each of the two axes of the model oblate spheroids.
- Research Organization:
- Health and Safety Research Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 5462520
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 34:4; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ANNEALING
DATA
DEPOLARIZATION
DIELECTRIC PROPERTIES
DIFFERENTIAL EQUATIONS
ELECTRICAL PROPERTIES
ELECTRON MICROSCOPY
ELEMENTS
EQUATIONS
EXPERIMENTAL DATA
FILMS
FREQUENCY DEPENDENCE
GOLD
HEAT TREATMENTS
INFORMATION
LAPLACE EQUATION
LIGHT TRANSMISSION
METALS
MICROSCOPY
NUMERICAL DATA
PARTIAL DIFFERENTIAL EQUATIONS
PHYSICAL PROPERTIES
PLASMONS
QUASI PARTICLES
RESONANCE
SPHEROIDS
SUBSTRATES
SURFACES
THIN FILMS
TRANSITION ELEMENTS
360104* -- Metals & Alloys-- Physical Properties
ANNEALING
DATA
DEPOLARIZATION
DIELECTRIC PROPERTIES
DIFFERENTIAL EQUATIONS
ELECTRICAL PROPERTIES
ELECTRON MICROSCOPY
ELEMENTS
EQUATIONS
EXPERIMENTAL DATA
FILMS
FREQUENCY DEPENDENCE
GOLD
HEAT TREATMENTS
INFORMATION
LAPLACE EQUATION
LIGHT TRANSMISSION
METALS
MICROSCOPY
NUMERICAL DATA
PARTIAL DIFFERENTIAL EQUATIONS
PHYSICAL PROPERTIES
PLASMONS
QUASI PARTICLES
RESONANCE
SPHEROIDS
SUBSTRATES
SURFACES
THIN FILMS
TRANSITION ELEMENTS