Accession Number:

ADA114278

Title:

The Use of a Perfectly Conducting Sphere to Excite the Plasmon of a Flat Surface. I. Calculation of the Local Field with Applications to Surface Enhanced Spectroscopy.

Descriptive Note:

Interim technical rept.,

Corporate Author:

CALIFORNIA UNIV SANTA BARBARA DEPT OF CHEMISTRY

Personal Author(s):

• Aravind,P. K.
• Metiu,Horia

Report Date:

1982-04-01

Pagination or Media Count:

49.0

Abstract:

We study the electromagnetic properties of a system consisting of a perfectly conducting sphere and a dielectric half-space driven by a laser. We show that the local field in the space between the sphere and the plane is strongly enhanced, making the system an interesting candidate for surface enhanced spectroscopy. The dependence of the local field on the incident frequency and the spatial distribution of the enhancement factor are presented. Possible applications are discussed. Author

Descriptors:

• *Raman spectroscopy
• *Surface chemistry
• *Spheres
• *Molecular structure
• *Laser beams
• Polarization
• Dipoles
• Oscillation
• Emission spectra
• Resonance
• Intensity
• Energy transfer
• Surface roughness
• Electromagnetic properties
• Spatial distribution
• Plasmons

Subject Categories:

• Lasers and Masers
• Atomic and Molecular Physics and Spectroscopy
• Nuclear Physics and Elementary Particle Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE