Strong terahertz emission enhancement via femtosecond laser filament concatenation in air

Strong terahertz emission enhancement via femtosecond laser filament concatenation in air

We investigate the emission of terahertz (THz) radiation from two laser filaments in air. An increase by 1 order of magnitude of the overall THz power is found when the two filaments are coherently linked on-axis, leading to a single longer concatenated filament. The observed enhancement is found to...

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Veröffentlicht in:Optics letters 2010-07, Vol.35 (14), p.2424-2426
Hauptverfasser: Manceau, J-M, Massaouti, M, Tzortzakis, S
Format: Artikel
Sprache:eng
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Zusammenfassung:We investigate the emission of terahertz (THz) radiation from two laser filaments in air. An increase by 1 order of magnitude of the overall THz power is found when the two filaments are coherently linked on-axis, leading to a single longer concatenated filament. The observed enhancement is found to be the same for the cases of single-color and two-color filamentation approaches.
ISSN:1539-4794
DOI:10.1364/OL.35.002424