Optical properties of Ag hemisphere-like nanoparticles.
J Nanosci Nanotechnol
; 13(1): 568-71, 2013 Jan.
Article
in En
| MEDLINE
| ID: mdl-23646775
ABSTRACT
We investigated the optical properties of Ag hemisphere-like nanoparticles. The nanoparticles were prepared by using magnetron sputtering and post-thermal annealing. The scanning-electron microscopy images reveal that hemisphere-like nanoparticles were successfully produced. The transmission spectra exhibit the surface plasmon resonance effect. From the spatial intensity distributions obtained by solving Maxwell equations using the three-dimensional, finite-difference time-domain method, we found that there is strong confinement of the optical field near the nanoparticle. This optical confinement makes it easy to exhibit the plasmon resonance effect.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Silver
/
Surface Plasmon Resonance
/
Metal Nanoparticles
/
Nanospheres
Language:
En
Journal:
J Nanosci Nanotechnol
Year:
2013
Document type:
Article