August 2009

Conference Paper

Ultrafast Control of a Surface Plasmon Resonance via the Insulator to Metal Transition in V02 Nanoparticles

By:
Rini, Matteo; Cavalleri, Andrea; Lopez, R.; Boatner, Lynn A; Haglund, Richard F; Haynes, Tony E; Feldman, Leonard
Page Number:
792-794
Volume:
79
Book Title:
Ultrafast Phenomena XIV: Proceedings of the 14th International Conference, Niigata, Japan, July 25--30, 2004
Publication Date:
August 28, 2009
Conference Name:
14th International Conference, Ultrafast Phenomena XIV
Conference Location:
Niigata, Japan

Abstract

We report on the study of the ultrafast insulator-to-metal transition in nanoparticles of strongly correlated VO2. The particles are grown by ion-implantation and self-assembly in a Silica matrix and can be switched between the insulating and metallic phase within less than 100 fs. The prompt formation of the metallic state results in the appearance of a surface-plasmon resonance that is absent in the bulk and can be further tailored by controlling the particle shape.