Accession Number:

ADA172675

Title:

Coherent Scattering of Light by Nuclear Spins.

Descriptive Note:

Final rept.,

Corporate Author:

MARYLAND UNIV COLLEGE PARK DEPT OF PHYSICS AND ASTRONOMY

Personal Author(s):

• Weber,J.

Report Date:

1986-06-01

Pagination or Media Count:

44.0

Abstract:

A new kind of coherent interaction is possible for strongly coupled scatterers. The general theory is presented and applied to the coherent absorption of light by an ensemble of coupled nuclei, with polarized spins. Three kinds of experiments have been carried out, in which the coupling of scatterers with each other is important. These are a Low energy antineutrinos interacting with nuclei of a solid b Raman scattering of light by electrons in a thin conducting film on the surface of polarized dielectric and c Interaction of light with polarized nuclei of a crystal. For a the theory is the interaction of two current densities and the lowest order process is antineutrino scattering, b is a scattering process described by the interaction of light with electrons, and c is an absorption process described by the interaction of light with magnetic moments. All of these processes may have total cross sections orders greater than the corresponding ones for scatterers which are not tightly bound. This appears true for all tightly bound scatterer interactions.

Descriptors:

• *LIGHT SCATTERING
• *COHERENT SCATTERING
• *NUCLEAR SPINS
• COUPLING(INTERACTION)
• POLARIZATION
• NUCLEAR MAGNETIC RESONANCE
• THIN FILMS
• DIELECTRICS
• CURRENT DENSITY
• CRYSTALS
• LASER BEAMS
• SAPPHIRE
• ELECTRONS
• LOW ENERGY
• NUMERICAL METHODS AND PROCEDURES
• ABSORPTION CROSS SECTIONS
• RESONANCE ABSORPTION
• MOMENTUM TRANSFER
• ELEMENTARY PARTICLES

Subject Categories:

• Numerical Mathematics
• Optics
• Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE