Optical method for determining the shape anisotropy of sodium nanoparticles in an island film |
| |
| Authors: | T. A. Vartanyan A. E. Logunov V. V. Khromov |
| |
| Affiliation: | (1) Center for Information Optical Technologies, St. Petersburg State University of Information Technologies, Mechanics, and Optics, St. Petersburg, 197101, Russia |
| |
| Abstract: | The optical anisotropy of nanoparticle ensembles on transparent dielectric substrates is studied by fluctuation-polarization microscopy. The method is based on measuring fluctuations in the optical characteristics of small areas of a film. The hypothesis that the resonance absorption peaks correspond to the plasma oscillation modes in different directions of sodium particles, which are simulated by three-axial ellipsoids, is confirmed by the frequency dispersion of the polarization signal. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
