Conical forward THz emission from femtosecond-laser-beam filamentation in air

Research output: Contribution to journalArticlepeer-review

Abstract

We attribute a strong forward directed THz emission from femtosecond laser filaments in air to a transition-Cherenkov emission from the plasma space charge moving behind the ionization front at light velocity. Distant targets can be easily irradiated by this new source of THz radiation.

Original languageEnglish
Article number235002
JournalPhysical Review Letters
Volume98
Issue number23
DOIs
Publication statusPublished - 7 Jun 2007

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