| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9785643 | Optics Communications | 2005 | 8 Pages |
Abstract
A new class of nano-photonics for possible Ï3(Ï) applications have been synthesized by pulsed laser ablation and optically characterized. Compared to standard nano-composites exhibiting an exalted effective Ï3(Ï) due to the enhancement of the local electric field, these Au-VO2 nano-composites display an additional reversibly tunable surface plasmon frequency under external temperature stimuli. This is due to the semi-conducting/metallic first order transition of the host VO2 matrix. The nano-gold surface plasmon wavelength shifts reversibly from 645 to 598 nm when the Au-VO2 nano-composites temperature varies from 25 to 120 °C. Even if the spectral shift is not extensively large, such a tunability is positively genuine.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
M. Maaza, O. Nemraoui, C. Sella, A.C. Beye, B. Baruch-Barak,