论文信息 - Lasing action in air induced by ultra-fast laser filamentation

Lasing action in air induced by ultra-fast laser filamentation

Abstract.The backscattered fluorescence of nitrogen from filaments generated by intense ultra-fast Ti:sapphire laser pulses propagating in air is studied. The backscattered fluorescence from N2 molecules and ions show an exponential increase with increasing filament length, indicating amplified spontaneous emission.

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