Acoustic Diagnostics of Plasma Channels Induced by Intense Femtosecond Laser Pulses in Air

Chin. Phys. Lett.

2005, Vol. 22

Issue (3): 636-639 DOI:

Original Articles

Acoustic Diagnostics of Plasma Channels Induced by Intense Femtosecond Laser Pulses in Air

HAO Zuo-Qiang¹;YU Jin²;ZHANG Jie¹;LI Yu-Tong¹;YUAN Xiao-Hui^1,3;ZHENG Zhi-Yuan¹;WANG Peng¹;WANG Zhao-Hua¹;LING Wei-Jun¹;WEI Zhi-Yi¹

¹Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080 ²Laboratoire de Spectroétrie Ionique et Moléculaire, UMR CNRS 5579, Université Claude Bernard-Lyon 1,43, Bd. du 11 Novembre 1918, F-69622 Villeurbanne Cedex, France ³State Key Laboratory of Transient Optics Technology, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xian 710068

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HAO Zuo-Qiang, YU Jin, ZHANG Jie et al 2005 Chin. Phys. Lett. 22 636-639

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Abstract Long plasma channels induced by femtosecond laser pulses in air are diagnosed using the sonographic method. By detecting the sound signals along the channels, the length and the electron density of the channels are measured. Refocusing is also observed at different laser energies and different focal lengths. We find that the sonographic method has manifest advantages compared to other techniques.

Keywords: 52.38.Hb 52.35.Hp

Published: 01 March 2005

PACS:	52.38.Hb	(Self-focussing, channeling, and filamentation in plasmas)
	52.35.Hp

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2005/V22/I3/0636

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	HAO Zuo-Qiang
	YU Jin
	ZHANG Jie
	LI Yu-Tong
	YUAN Xiao-Hui
	ZHENG Zhi-Yuan
	WANG Peng
	WANG Zhao-Hua
	LING Wei-Jun
	WEI Zhi-Yi

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