Surface Plasmon and Polariton Dispersion at Rough Boundaries

The influence of surface roughness on electromagnetic surface modes is investigated theoretically. A frequency or wave vector shift is found and a damping of the modes depending on the autocorrelation of the surface roughness. This could be described by an explicit analytic expression. There is good agreement with experimental results on sinus-odially modulated silver surfaces. Der Einflus von Oberflachenrauhigkeit auf elektromagnetische Oberflachenanregungen wird theoretisch untersucht. Eine von der Autokorrelation der Oberflachenrauhigkeit ab-hangige Wellenvektor- oder Frequenzverschiebung sowie eine Dampfung der Anregungen wird gefunden. Diese Effekte lassen sich durch cinen expliziten analytischen Ausdruck beschreiben. Es besteht gute Ubereinstimmung mit experimentellen Ergebnissen an sinus-formig modulierten Silberoberflachen.

[1]  E. Kretschmann,et al.  Die bestimmung der oberflächenrauhigkeit dünner schichten durch messung der winkelabhängigkeit der streustrahlung von oberflächenplasmaschwingungen , 1974 .

[2]  F. Toigo,et al.  Light scattering from rough surfaces: General incidence angle and polarization , 1975 .

[3]  R. Apter,et al.  A Detailed Experimental Study of the Anomalies of a Sinusoidal Diffraction Grating , 1973 .

[4]  E. Kretschmann,et al.  Decay of non radiative surface plasmons into light on rough silver films. Comparison of experimental and theoretical results , 1972 .

[5]  E. Kroeger,et al.  Reflection and transmission of light by a rough surface, including results for surface-plasmon effects , 1975 .

[6]  A. Otto,et al.  On the quantitative measurement of the roughness spectrum of silver films , 1974 .

[7]  E. Kroeger,et al.  Scattering of light by slightly rough surfaces or thin films including plasma resonance emission , 1970 .

[8]  I. Pockrand.  Reflection of light from periodically corrugated silver films near the plasma frequency , 1974 .

[9]  J. M. Elson,et al.  Light scattering from semi-infinite media for non-normal incidence , 1975 .

[10]  E. Arakawa,et al.  Effect of surface roughness on surface plasmon resonance absorption , 1974 .

[11]  H. Kapitza.  Influence of surface roughness on the reflection of gold films in the region of surface plasmon excitation , 1976 .

[12]  R. Petit.  Electromagnetic grating theories: Limitations and successes , 1975 .

[13]  G. Benford,et al.  Green's function for Markovian systems , 1973 .

[14]  H. Juranek.  Streuung elektromagnetischer Wellen an einer rauhen Oberfläche , 1970 .

[15]  D. Mills.  Attenuation of surface polaritons by surface roughness , 1975 .

[16]  E. Kretschmann,et al.  The angular dependence and the polarisation of light emitted by surface plasmons on metals due to roughness , 1972 .

[17]  Stochastic Master Equations: A Perturbative Approach , 1972 .