Photon scanning tunneling microscopy images of optical excitations of fractal metal colloid clusters

D. P. Tsai; J. Kovacs; Zhouhang Wang; Martin Moskovits; Vladimir M. Shalaev; J. S. Suh; R. Botet

doi:10.1103/PhysRevLett.72.4149

Photon scanning tunneling microscopy images of optical excitations of fractal metal colloid clusters

D. P. Tsai, J. Kovacs, Zhouhang Wang, Martin Moskovits, Vladimir M. Shalaev, J. S. Suh, and R. Botet

Phys. Rev. Lett. 72, 4149 – Published 27 June 1994

Abstract

Highly localized, laser-excited optical modes of silver colloid fractal clusters were observed using photon scanning tunneling microscopy. The spatial distribution of the modes shows the frequency and polarization selectivity suggested by numerical simulations. The results verify the main concepts of the recently developed resonant optical theory of fractal objects.

Received 27 July 1993

DOI:https://doi.org/10.1103/PhysRevLett.72.4149

Authors & Affiliations

D. P. Tsai, J. Kovacs, Zhouhang Wang, Martin Moskovits, Vladimir M. Shalaev, J. S. Suh, and R. Botet

Department of Chemistry and Ontario Laser and Lightwave Research Centre, University of Toronto, Toronto, Ontario, Canada M5S 1A1
Department of Chemistry Education, Seoul National University, Seoul 151-742
Center for Molecular Science, 373-1 Kusung-dong, Taejon 305-701, Korea
Laboratoire de Physique des Solides, Université Paris(enSud, Centre d’Orsay, 91405 Orsay Cedex, France