Related Experiment Video
Updated: Aug 14, 2026

Investigation of Early Plasma Evolution Induced by Ultrashort Laser Pulses
Published on: July 2, 2012
Low-frequency electrostatic waves in self-gravitating dusty plasmas with dust-ion collisions
G Jacobs1, V V Yaroshenko, F Verheest
1Sterrenkundig Observatorium, Universiteit Gent, Krijgslaan 281, B-9000, Gent, Belgium.
Abstract:
The influence of dust-ion collisions on low-frequency modes in a self-gravitating dusty plasma is studied. The stability of the system is easily determined using elementary principles of rootlocus theory. It shows that collisions between ions and dust grains do not change the criteria for gravitational collapse at any value of their collision frequency, but diminish the growth rate of unstable dusty plasmas. Moreover, the rootlocus plots visualize qualitatively the evolution of the real frequencies and damping decrements of the dust-acoustic and ion-acoustic modes as the dust-ion collision frequency increases.
Related Concept Videos
Gauss's Law in Dielectrics
Electromagnetic Waves
Plane Electromagnetic Waves I
The EM field is assumed to be a...
Momentum And Radiation Pressure
Ampere-Maxwell's Law: Problem-Solving
To solve the problem, we can use the equations from the analysis of an RC circuit and Maxwell's version of Ampère's law.
For the first part of the problem,...
Inductively Coupled Plasma Atomic Emission Spectroscopy: Principle
The ions and electrons produced interact with the fluctuating magnetic field created by a water-cooled...

