Submitted:
12 November 2018
Posted:
13 November 2018
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Abstract
The wave packet consisting of two harmonic plane waves with the same frequencies, but with different wave vectors is considered. The dispersion relation of a packet is structurally similar to the dispersion relation of a relativistic particle with a nonzero rest mass. The possibility of controlling the group velocity of a quasi-monochromatic wave packet by varying the angle between the wave vectors of its constituent waves is discussed.
Keywords:
quasi-monochromatic waves
; group velocity
; dispersion relation
; longitudinal modulation
; coherence time
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