High-power ultra-short laser pulses can propagate through a significant distance in air after self-focusing and filamentation.. Upon self-focusing, the pulse undergoes self-phase modulation turning into a broadband pulse spectrally ranging from the UV to IR, yet of strong spectral coherence, hence a white light laser pulse. Molecules in the filament will be ionized, fragmented and the resulting particles will fluoresce with well resolved molecular spectra without the interference of a plasma continuum even at atmospheric pressure. This talk gives a summary of some of our recent findings on the above mentioned phenomena as well as on ring formation, etc.


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    Titel :

    Powerful femtosecond laser pulse propagation in the atmosphere and applications


    Beteiligte:
    Chin, S.L. (Autor:in) / Akozbek, N. (Autor:in) / Talebpour, A. (Autor:in) / Proulx, A. (Autor:in) / Petit, S. (Autor:in) / Bowden, C.M. (Autor:in)


    Erscheinungsdatum :

    01.01.2001


    Format / Umfang :

    148303 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch