Lasing Action in Air Induced by Ultrafast Laser Filamentation
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.
Become a member or log in to view the full text of this article.
OSA Members get the full text of Optics & Photonics News, plus a variety of other member benefits.