2021•Physical Review AOpen access

Free-space group-velocity dispersion induced in space-time wave packets by V-shaped spectra

Layton A. Hall, Ayman F. Abouraddy

Abstract

The authors introduce a space-time wave-packet structure that propagates in free space with a group velocity fixed at the speed of light in vacuum and large anomalous dispersion in free space. This is a noteworthy addition to the family of known optical wave packets and could have applications in optical signal processing and nonlinear optics.

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Key concepts: Group velocity, Wave packet, Physics, Dispersion (optics), Space (punctuation), Optics, Network packet, Space time