Examples of 'group velocity' in a sentence
Meaning of "group velocity"
group velocity: In physics, group velocity refers to the velocity at which the overall shape of a wave packet propagates through a medium. It is different from phase velocity and plays a crucial role in wave mechanics and optics
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- the propagation velocity of the envelope of a modulated travelling wave, which is considered as the propagation velocity of information or energy contained in it.
How to use "group velocity" in a sentence
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group velocity
This explains the group velocity formula.
The group velocity is the speed of the modulation or envelope.
These studies included negative group velocity.
Wave packets have group velocity and phase velocity.
The energy transport velocity is the group velocity.
A group velocity is basically the speed at which a wave group travels.
Slow light refers to a very low group velocity of light.
The group velocity also turns out to be the energy transport velocity.
Phase velocity is two thirds of group velocity in this limit.
In dispersive media the phase velocity is not necessarily the same as the group velocity.
The associated quadrupole polaritons have low group velocity approaching the speed of sound.
One of these coupled modes presents a strong radiative coupling and a weak group velocity.
Animation, phase and group velocity of electrons.
The group velocity itself is usually a function of the wave 's frequency.
It is an interesting model in which the group velocity may degenerate.
See also
The deep-water group velocity is half the phase velocity.
Slow light refers to a large reduction in the group velocity of light.
The magnitude of the group velocity is equal to the particle 's speed.
If the velocities differ, the pulse is said to be moving at the group velocity.
By " dispersive " we mean that the group velocity is a function of wavelength or frequency.
For this purpose, a comparison with a simplified model involving group velocity is proposed.
Here, we will present group velocity maps several periods which represent.
Although each photon, always moving at the speed c ¸ the group velocity is greater than c.
Group velocity in a crystal lattice " PDF.
Dispersion is the name given to the property of group velocity variation with wavelength.
Group velocity for 6mm thick steel plate.
This means that phase - and group velocity of the waves are frequency dependent.
The stronger the magnetic tension, the weaker the wave group velocity and gradient force.
The group velocity of a wave ( e.g., a light beam ) may also exceed c in some circumstances.
Slow light is a dramatic reduction in the group velocity of light, not the phase velocity.
Golkowski measured the lightning 's group velocity - the speed at which the energy of a wave travels.
We first applied a ' classical ' ambient noise group velocity tomography.
In general, shorter waves have an eastward group velocity and long waves a westward group velocity.
Phase velocity, b Group velocity.
The constant v { \ displaystyle v } is called the group velocity or Lieb-Robinson velocity.
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