Local-field enhancement on rough surfaces of metals, semimetals, and semiconductors with the use of optical second-harmonic generation

Journal Article · Sun Jul 15 04:00:00 EDT 1984 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.30.519· OSTI ID:6364011

Boyd, G T; Rasing, T; Leite, J R.R.; Shen, Y R

Optical second-harmonic generation was used to study the local-field enhancement due to surface roughness on various materials ranging from the alkalis to a semiconductor. The roughness morphology was standardized by evaporating each material onto the same chemically etched glass slide, having microstructures hundreds to thousands of angstroms in size. With the laser excitation at 1.06 ..mu..m, the observed second-harmonic enhancements for different materials varied from 27 to 1 x 10/sup -3/ times that of silver. They were in fair agreement with a simple model calculation assuming that the rough surface is composed of a distribution of noninteracting hemispheroids on a plane. The results are used to predict some rather substantial enhancements for surface Raman scattering for a number of substrate materials.

• Research Organization: Department of Physics, University of California, Berkeley, California 94720 and Materials and Molecular Research Division, Lawrence Berkeley Laboratory, Berkeley, California 94720
• OSTI ID: 6364011
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 30:2; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
360603 -- Materials-- Properties
COATINGS
CRYSTAL STRUCTURE
DATA
ELEMENTS
EXPERIMENTAL DATA
FILMS
HARMONICS
INFORMATION
MATERIALS
METALS
MICROSTRUCTURE
NONLINEAR OPTICS
NUMERICAL DATA
OPTICAL PROPERTIES
OPTICS
OSCILLATIONS
PHYSICAL PROPERTIES
RAMAN EFFECT
ROUGHNESS
SEMICONDUCTOR MATERIALS
SEMIMETALS
SOLIDS
SURFACE PROPERTIES
SURFACES
VAPOR DEPOSITED COATINGS