Fluorescence quenching in molecules near rough metal surfaces

A classical electrodynamic near field calculation for the interaction of a Drude oscillator molecular dipole with a rough metal surface is presented. Effects of electromagnetic coupling between surface bumps (assumed to be prolate hemispheroids) and the bulk metal are included. Fluorescence lifetimes are found to be two to four orders of magnitude smaller than those predicted for a flat plane in calculations on silver, and for sufficiently short distances, an avoided crossing splitting is predicted.

[1]  A. Nitzan,et al.  Spectroscopic properties of molecules interacting with small dielectric particles , 1981 .

[2]  H. Morawitz,et al.  Coupling of an excited molecule to surface plasmons , 1974 .

[3]  Charles B. Harris,et al.  Mechanisms for electronic energy transfer between molecules and metal surfaces: A comparison of silver and nickel , 1982 .

[4]  C. Harris,et al.  Electronic energy transfer from pyrazine to a silver(111) surface between 10 and 400 Å , 1982 .

[5]  R. Ruppin.  Electric field enhancement near a surface bump , 1981 .

[6]  A. Nitzan,et al.  Theoretical model for enhanced photochemistry on rough surfaces , 1981 .

[7]  Martin Moskovits,et al.  Surface roughness and the enhanced intensity of Raman scattering by molecules adsorbed on metals , 1978 .

[8]  G. Schatz,et al.  The role of surface roughness in surface enhanced raman spectroscopy (SERS): the importance of multiple plasmon resonances , 1981 .

[9]  Abraham Nitzan,et al.  Electromagnetic theory of enhanced Raman scattering by molecules adsorbed on rough surfaces , 1980 .

[10]  H. Metiu,et al.  Classical theory of light scattering by an adsorbed molecule. I. Theory , 1979 .

[11]  D. Weitz,et al.  The enhancement of Raman scattering, resonance Raman scattering, and fluorescence from molecules adsorbed on a rough silver surface , 1983 .

[12]  Wang,et al.  Simple treatment of the enhancement of Raman scattering due to a two-dimensional array of metallic spheroids. , 1985, Physical review. B, Condensed matter.

[13]  D. Berreman.  Anomalous Reststrahl Structure from Slight Surface Roughness , 1967 .

[14]  R. Ruppin,et al.  Decay of an excited molecule near a small metal sphere , 1982 .

[15]  R. W. Christy,et al.  Optical Constants of the Noble Metals , 1972 .

[16]  G. Schatz,et al.  The effect of randomly distributed surface bumps on local field enhancements in surface enhanced Raman spectroscopy , 1982 .