Accession Number:

ADA066723

Title:

Mode Coupling of Modulational Instabilities.

Descriptive Note:

Interim rept.,

Corporate Author:

CALIFORNIA UNIV LOS ANGELES SCHOOL OF ENGINEERING AND APPLIED SCIENCE

Personal Author(s):

• Himmell,Lewis C.

Report Date:

1978-08-01

Pagination or Media Count:

28.0

Abstract:

A general formalism is developed to describe the nonlinear evolution associated with the parametric decay of an intense, coherent electromagnetic wave into an electrostatic wave, its second harmonic, and scattered electromagnetic waves in a homogeneous plasma. The effects of pump depletion are neglected and it is assumed that all waves are coherent. Two classes of solutions are found. One class is explosively unstable, while the other consists of growing aperiodic oscillations. The evolution of modulational modes is discussed. Author

Descriptors:

• *PLASMAS(PHYSICS)
• *ELECTROMAGNETIC SCATTERING
• *ELECTROSTATICS
• *COHERENT ELECTROMAGNETIC RADIATION
• PARAMETRIC ANALYSIS
• TAYLORS SERIES
• HARMONICS
• NONLINEAR SYSTEMS
• MODULATION
• OSCILLATION
• DECAY
• FOURIER ANALYSIS

Subject Categories:

• Electricity and Magnetism
• Plasma Physics and Magnetohydrodynamics
• Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE