Lasing action in air induced by ultrafast laser filamentation

Q. Luo; W. Liu; S. L. Chin

Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference
Technical Digest (Optica Publishing Group, 2003),
paper CThB3

Lasing action in air induced by ultrafast laser filamentation

Q. Luo, W. Liu, and S. L. Chin

Conference on Lasers and Electro-Optics 2003

Baltimore, Maryland United States
1–6 June 2003
ISBN: 1-55752-733-4

From the session
Femtosecond Laser Atmospheric Propagation (CThB)

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Q. Luo, W. Liu, and S. L. Chin, "Lasing action in air induced by ultrafast laser filamentation," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference, Technical Digest (Optica Publishing Group, 2003), paper CThB3.

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Abstract

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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