M., Maaza and O., Nemraoui and C., Sella and A. C., Beye (2005) Surface Plasmon Resonance Tunability in Au-VO2 Thermochromic Nano-composites. Gold Bulletin, 38 (3). pp. 100-106.
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Official URL: http://www.ingentaconnect.com/content/wgc/gb/2005/...
Abstract
A new type of photo-active nano-composite material appropriate for Ultra-fast Nonlinear Optical (3)() applications has been synthesized and optically characterized. Compared to standard noble metal particles- oxide nano-composites exhibiting a superior effective (3)() 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. Such a smart plasmon tunability is correlated to the Mott's type semiconducting/metallic 1st order transition of the host VO2 matrix. The nano-gold surface plasmon wavelength shifts reversibly from 645 nm to 598nm when the Au-VO2 nano-composites temperature varies from 25°C to 120°C.
| Item Type: | Article |
|---|---|
| Subjects: | Material Science > Functional and hybrid materials Material Science > Nanofabrication processes and tools Physical Science > Nano objects Physical Science > Quantum phenomena Material Science > Nanostructured materials Physical Science > Photonics |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Physics |
| ID Code: | 7872 |
| Deposited By: | Dr Balla Diop Ngom |
| Deposited On: | 28 Nov 2009 20:10 |
| Last Modified: | 21 Jan 2010 16:33 |
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