The backscattered fluorescence of nitrogen from long filaments generated by intense ultrafast Ti-sapphire laser pulses propagating in air is studied. It shows an exponential increase with increasing filament length, indicating amplified spontaneous emission (ASE).


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    Title :

    Lasing action in air induced by ultrafast laser filamentation


    Contributors:
    Luo, Q. (author) / Liu, W. (author) / Chin, S.L. (author)


    Publication date :

    2003-01-01


    Size :

    144165 byte



    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English