Estimation of phase and group velocities for multi-modal ground roll ...
(b) The ratio vI (k)/vg between the barrier perturbed information velocity and the free group velocity is plotted as a function of the barrier ...
Effects of a transient barrier on wavepacket traversalThe pulse propagation velocity (also known as the group velocity vg= c/ng) differs from the propagation velocity of the carrier (also known as the phase ... Theory and Application of SBS-based Group Velocity Manipulation ...The delay time Td is proportional to the gain G0 and inversely proportional to the pump spectral bandwidth ?. As a result, we are able to control the delay time ... Power law decay of zero group velocity Lamb modesIn this paper, we investigate another phenomenon: the power law decay of ZGV Lamb modes due to the second order term in the dispersion relation.
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