Theoretical Study of the Local Surface Plasmon Resonance Properties of Silver Nanosphere Clusters
| Autor: | Jie Zhang, Zhao-Wang Wu, Ye-Wan Ma, Guo-Shu Jian, Shi Pan, Li-Hua Zhang |
|---|---|
| Jazyk: | angličtina |
| Předmět: |
Materials science
Scattering Surface plasmon Optical efficiencies Biophysics Physics::Optics Nanotechnology Molecular physics Ray Biochemistry Article symbols.namesake Green function Extinction (optical mineralogy) Local surface plasmon resonance Electric field symbols Surface plasmon resonance Absorption (electromagnetic radiation) Raman spectroscopy Silver nanosphere clusters Biotechnology |
| Zdroj: | Plasmonics (Norwell, Mass.) |
| ISSN: | 1557-1955 |
| DOI: | 10.1007/s11468-013-9541-y |
| Popis: | The local surface plasmon resonance properties in systems consisting of silver nanosphere clusters are studied by Green’s function. The extinction, absorption, and scattering efficiencies band of two, three, and more silver nanospheres clusters are discussed in detail. The clusters show new types of the local surface plasmon resonances compared with single silver nanosphere. Our results suggest that the resonances depend strongly on individual particles’ characteristics such as their shapes, gap distances, directions and polarizations of incident light waves, and the number of clusters. The spectrum shows that equilateral triangle nanospheres has a good absorption peak, while the better red-shifted with three aligned nanospheres. In addition, the distributions of electric field intensity for three and four touched silver nanospheres are also investigated. The study is useful to broaden the application scope of Raman spectroscopy and nanooptics. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|