Accession Number : ADA138321

Title :   Surface Plasmon-Enhanced Raman Scattering at Thin Silver Films.

Descriptive Note : Technical rept.,


Personal Author(s) : Corn,R. M. ; Philpott,M. R.

Report Date : NOV 1983

Pagination or Media Count : 22

Abstract : Raman spectra are reported for liquids and Langmuir films enhanced by the electromagnetic fields of plasma surface polaritons at flat silver surfaces. The Kretschmann prism coupling configuration is used to excite the incident surface polariton and to couple out the Raman shifted surface wave. The spectra are interpreted with the help of a simple quantum theory and compared with previously reported grating spectra. Enhancement factors, polarization characteristics, and the feasibility of using surface polaritons to enhance the Raman spectra of adsorbates on flat electrodes in contact with aqueous electrolyte are discussed. (Author)

Descriptors :   *Raman spectra, *Light scattering, *Electrodes, *Plasmons, *Electrochemistry, Liquids, Silver, Thin films, Electromagnetic fields, Surfaces, Excitation, Prisms(Optics), Coupling(Interaction), Configurations, Surface waves, Polarization, Adsorbates, Electrolytes, Molecules, Molecular properties, Quantum theory

Subject Categories : Atomic and Molecular Physics and Spectroscopy
      Quantum Theory and Relativity

Distribution Statement : APPROVED FOR PUBLIC RELEASE