| 释义 |
Definition of group velocity in English: group velocitynoun Physics The speed at which the energy of a wave travels. Example sentencesExamples - Even when the phase velocity is faster than light, the group velocity should be slower.
- These numbers indicate a group velocity for these structures of approximately 1% of the speed of light in free space.
- The group velocity dispersion induced by optical elements in the fluorescence path was measured using white light generated by 800-nm pulses in the same flow cell tilled with water.
- Essentially, the group velocity of the wave must fall to zero at that location, dropping in such a way that there is sufficient time for the damping to dissipate all of the wave's energy before it gets to that point.
- He counters that when a beam passes between positive- and negative-index media the group velocity is negatively refracted.
Definition of group velocity in US English: group velocitynoun Physics The speed at which the energy of a wave travels. Example sentencesExamples - Essentially, the group velocity of the wave must fall to zero at that location, dropping in such a way that there is sufficient time for the damping to dissipate all of the wave's energy before it gets to that point.
- The group velocity dispersion induced by optical elements in the fluorescence path was measured using white light generated by 800-nm pulses in the same flow cell tilled with water.
- These numbers indicate a group velocity for these structures of approximately 1% of the speed of light in free space.
- He counters that when a beam passes between positive- and negative-index media the group velocity is negatively refracted.
- Even when the phase velocity is faster than light, the group velocity should be slower.
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