Accession Number:

ADA008413

Title:

Eigenmodes, Quasimodes, and Quasiparticles.

Descriptive Note:

Technical rept.,

Corporate Author:

POLYTECHNIC INST OF NEW YORK FARMINGDALE DEPT OF ELECTRICAL ENGINEERING AND ELECTROPHYSICS

Personal Author(s):

• Marcuvitz,N.

Report Date:

1975-03-01

Pagination or Media Count:

34.0

Abstract:

A general linear field supports both a discrete and continuous spectrum of modes or source-free field solutions. Although only eigenmodes are necessary for a complete representation of fields excited by sources, non eigen discrete modes quasimodes provide a useful and rapidly convergent alternative to the continuum eigenmode part of a field representation. Quasimode field representations, and their interpretation in terms of quasiparticles, are discussed both generally and for the special case of a vector electron plasma field, for which the complete set of eigenmodes is found via a resolvent or characteristic Greens function method.

Descriptors:

• *ELECTROMAGNETIC SCATTERING
• LINEAR SYSTEMS
• MATRICES(MATHEMATICS)
• EIGENVECTORS
• PARTIAL DIFFERENTIAL EQUATIONS
• GREENS FUNCTIONS

Subject Categories:

• Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE