Light scattering by surface acoustic waves on corrugated metal surfaces

Journal Article · Thu Mar 15 00:00:00 EST 1990 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.41.4986· OSTI ID:6978738

Robertson, W M; Grimsditch, M ^[1]; Moretti, A L; Kaufman, R G; Hulse, G R ^[2]; Fullerton, E; Schuller, I K ^[3]

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1. Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439-4843 (USA)
2. Amoco Technology Company, P.O. Box 400, Naperville, Illinois 60566 (USA)
3. Department of Physics, University of California, San Diego, La Jolla, California 92093 (USA)

We report the results of a Brillouin-scattering study of corrugated Ag surfaces. The corrugation plays a dramatic role in the wave-vector--selection rules governing coupling to surface phonons, and this effect is substantially different when the effective wave vector of the surface corrugation is collinear or perpendicular to the scattering plane. In processes that involve the grating wave vector, we show that the coupling mechanism between light and phonons is governed by surface plasmons which introduce a new scattering interaction with unusual polarization features in the Brillouin-scattering process.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38; FG03-87ER45332
• OSTI ID: 6978738
• Journal Information: Physical Review, B: Condensed Matter; (USA), Vol. 41:8; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
SILVER
BRILLOUIN EFFECT
CORRELATIONS
DOPPLER EFFECT
GRATINGS
LIGHT SCATTERING
PHONONS
ROUGHNESS
SURFACE PROPERTIES
COHERENT SCATTERING
ELEMENTS
METALS
QUASI PARTICLES
SCATTERING
TRANSITION ELEMENTS
360104* - Metals & Alloys- Physical Properties