Modulational Instability of the Coupled Waves Between High-Frequency Magnetosonic Wave and Low-Frequency Magnetosonic Wave

It is well known that the ponderomotive force of a relatively high-frequency magnetosonic wave (HMSW) can excite the low-frequency magnetosonic wave (LMSW). By using the coupled system of dynamical equations of LMSW in the presence of a ponderomotive force of HMSW (pump wave), we have studied the mo...

Full description

Saved in:
Bibliographic Details
Published inIEEE transactions on plasma science Vol. 49; no. 1; pp. 396 - 400
Main Authors Wang, Fang-Ping, Han, Juan-Fang, Duan, Wen-Shan
Format Journal Article
LanguageEnglish
Published New York IEEE 01.01.2021
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Force
Growth rate
Laser beams
Laser excitation
Magnetic fields
Magnetoacoustic effects
Magnetosonic wave (MSW)
Mathematical model
modulational instability
Perturbation
Perturbation methods
Plasmas
ponderomotive force
Ponderomotive forces
Waves
Online AccessGet full text

Cover

More Information
Summary:It is well known that the ponderomotive force of a relatively high-frequency magnetosonic wave (HMSW) can excite the low-frequency magnetosonic wave (LMSW). By using the coupled system of dynamical equations of LMSW in the presence of a ponderomotive force of HMSW (pump wave), we have studied the modulational instability of the coupled waves between the HMSW and the LMSW. It is found that there are instabilities for the coupled waves between the HMSW and the LMSW. It is also found that the growth rate depends on several system parameters, such as the frequency of HMSW, the perturbation wave vector, and the background magnetic field.
ISSN:0093-3813
1939-9375
DOI:10.1109/TPS.2020.3043419