Filamentation of femtosecond laser pulse in atmosphere and its application

Zhao Shanghong; Shi Lei; Li Yujiang; Zhu Ruipin

Zhao Shanghong, Shi Lei, Li Yujiang, Zhu Ruipin. Filamentation of femtosecond laser pulse in atmosphere and its application[J]. LASER TECHNOLOGY, 2003, 27(3): 256-258.

Citation:

Zhao Shanghong, Shi Lei, Li Yujiang, Zhu Ruipin. Filamentation of femtosecond laser pulse in atmosphere and its application[J]. LASER TECHNOLOGY, 2003, 27(3): 256-258.

Citation:

Zhao Shanghong, Shi Lei, Li Yujiang, Zhu Ruipin. Filamentation of femtosecond laser pulse in atmosphere and its application[J]. LASER TECHNOLOGY, 2003, 27(3): 256-258.

Filamentation of femtosecond laser pulse in atmosphere and its application

Graphical Abstract

Graphical Abstract

Abstract

Abstract

The mechanism of filamentation formed by femtosecond pulse laser beam propagating in atmosphere is investigated.The balance between the self-focusing of laser beam due to Kerr effect is countered by plasma defocusing caused by multiphoton ionization creates the stabilized long-distance filament propagation in atmosphere.The potential application of filament in ultra-wide-band lidar and laser induced lightning is also analyzed.