Surface effects on Raman scattering from Sb deposited on Ag-island films

Opt Lett. 1983 Jul 1;8(7):374-6. doi: 10.1364/ol.8.000374.

Abstract

Surface-enhanced Raman scattering from crystal vibrational modes of a Sb film rather than from vibrational modes of individual molecules has been observed for the first time to our knowledge. A ~20x enhancement of the longitudinal-optical mode (150 cm(-1)) in the Raman spectra of crystalline Sb films deposited on silver-island films was obtained. The excitation profiles, as well as the dependence of Raman intensity on the thickness of Ag films, were studied.