Qi Luo, Seyed Abbas Hosseini, Weiwei Liu and See Leang Chin
Backscattered fluorescence from nitrogen molecules from filaments induced by intense, ultrafast Ti:sapphire laser pulses increases exponentially with an increase in the length of the filament. This shows that the fluorescence undergoes amplified spontaneous emission along the filament direction, a finding that could have applications in lightning discharge
control and remote sensing.
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