Tunable Optical Antennas Based on Metallic Nanoshells with Nanoknobs
| Autor: | Maria A. Tinskaya, Andrey Denisyuk, A. V. Shelaev, Mikhail I. Petrov, P. S. Dorozhkin |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Models
Molecular Electromagnetic field Materials science Light business.industry Biomedical Engineering Metal Nanoparticles Physics::Optics Nanoparticle Bioengineering General Chemistry Surface Plasmon Resonance Condensed Matter Physics Ray Nanoshell Wavelength Models Chemical Scattering Radiation Optoelectronics Computational electromagnetics Computer Simulation General Materials Science Surface plasmon resonance business Plasmon |
| Zdroj: | Journal of Nanoscience and Nanotechnology. 12:8651-8655 |
| ISSN: | 1533-4880 |
| Popis: | We investigate optical properties of a new complex plasmonic nanostructure, which consists of a spherical metallic nanoshell and a small metallic nanoparticle ("nanoknob") situated on its surface. The plasmon resonance wavelength of the entire structure is guided by the geometrical and material properties of the nanoshell whereas the electromagnetic field of the incident light is localized and enhanced near the "nanoknob". The idea is supported with electromagnetic modeling and near-field optical microscopy imaging. In addition, we proposed and demonstrated a new method of nanoparticle precise manipulation under electron beam, which could be used in fabrication of such plasmonic structures and other nanosized elements. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|