%0 Journal Article
%T Surface Plasmon Resonance Tunability in Au VO2 Thermochromic Nano-composites
%A M. Maaza
%A O. Nemraoui
%A C. Sella
%A A. C. Beye
%J Gold Bulletin
%@ 2190-7579
%D 2005
%I Springer
%R 10.1007/BF03215243
%X A new type of photo-active nano-composite material appropriate for Ultra-fast Nonlinear Optical ¦Ö(3) (¦Ø) applications has been synthesized and optically characterized. Compared to standard noble metal particles- oxide nano-composites exhibiting a superior effective ¦Ö(3) (¦Ø) 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¡ãC to 120¡ãC.
%U http://link.springer.com/article/10.1007/BF03215243