This property is called dispersion, because signals become dispersed. That is, since any signal carrying information must consist of more than one frequency, ...

16 мая 2016 г. · When the phase velocity is a constant (with respect to wavelength), the group velocity will indeed be equal to it, as you yourself have ...

The group velocity of a wave is the velocity with which the overall envelope shape of the wave's amplitudes—known as the modulation or envelope of the wave— ...

The differences between the group velocity and the wave velocity can be understood as a property of the medium, which can be dispersive. In Figure 3, plotted is ...

We have seen with the cold plasma treatment that the wave phase velocity is actually greater than c. Therefore a proper relativistic distribution function ...

The dispersion branches are for a dense (left) and dilute (right) plasma. Note the tangents to all curves, indicating that the group velocity is always smaller.

Taken the limit Aω → 0, we thus define the group velocity. The group velocity is closely related to the concept of Poynting flux. ... electron plasma waves: ...

3 авг. 2010 г. · The nonlinear group velocity of an electron plasma wave is investigated numerically using a Vlasov code, and is found to assume values which ...

The velocity at which a particular amplitude of the wave's shape propagates in space is called group velocity. This calculator is used to calculate the ...

This module allows you to calculate the phase and group velocities of right- and left-handed plasma waves, their ellipticity, wavelengths, ...