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Lasing action in air induced by ultra-fast laser filamentation

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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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Authors and Affiliations

  1. Centre d’Optique, Photonique et Laser (COPL) et Département de Physique, de Génie Physique et d’Optique, Université Laval, Québec, Québec G1K 7P4, Canada, , , , , , CA

    Q. Luo, W. Liu & S.L. Chin

Authors
  1. Q. Luo
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  2. W. Liu
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  3. S.L. Chin
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Additional information

Received: 11 October 2002 / Revised version: 3 December 2002 / Published online: 26 February 2003

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ID="*"Corresponding author. Fax: +1-418/6562-623, E-mail: qluo@phy.ulaval.ca

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Luo, Q., Liu, W. & Chin, S. Lasing action in air induced by ultra-fast laser filamentation . Appl Phys B 76, 337–340 (2003). https://doi.org/10.1007/s00340-003-1115-9

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  • DOI: https://doi.org/10.1007/s00340-003-1115-9

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