Amplification of transition-Cherenkov terahertz radiation of femtosecond filament in air - Archive ouverte HAL Access content directly
Journal Articles Applied Physics Letters Year : 2008

Amplification of transition-Cherenkov terahertz radiation of femtosecond filament in air

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Abstract

The transition-Cherenkov terahertz radiation from a femtosecond laser filament in air is enhanced by three orders of magnitude in the presence of a longitudinal static electric field, while the radiation pattern and the polarization remain the same. An amplified longitudinal electron current inside the filament is responsible for this amplified terahertz emission.
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Dates and versions

hal-00458429 , version 1 (05-03-2010)

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Yi Liu, Aurélien Houard, Bernard Prade, André Mysyrowicz, Abdourahmane Diaw, et al.. Amplification of transition-Cherenkov terahertz radiation of femtosecond filament in air. Applied Physics Letters, 2008, 93 (5), pp.051108. ⟨10.1063/1.2965612⟩. ⟨hal-00458429⟩
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