Experiment study of air ionization and plasma channel conducting with nanosecond ultraviolet laser pulses

CHEN De-zhang; GAO Jian-bo; YE Jing-feng; LU Ying-bin; WANG Sheng; QING Guang-bi; WANG Li-jun; CHEN Yi-qing

In order to validate the technical feasibility of air plasma channel with nanosecond ultraviolet laser,the interaction between air and 248nm ultraviolet laser was studied in laboratory.The air ionization threshold was measured in room.Continuous plasma channel was set up.The conducting experiments of plasma channel were carried out with direct current.Flash plasma channel length is about 8mm with 180mJ laser pulses.The conductive plasma channel length is about 20mm.It is possible to establish the continuous laser plasma conducting channel with nanosecond ultraviolent laser.

Corresponding author: CHEN De-zhang, chenhome163@163.com;

1. Southwest Institute of Technical Physics, Chengdu 610041, China;

2. Northwest Institute of Nuclear Technology, Xi'an 710024, China

Received Date: 2007-05-15

Accepted Date: 2007-07-04

Available Online: 2008-06-25

Abstract: In order to validate the technical feasibility of air plasma channel with nanosecond ultraviolet laser,the interaction between air and 248nm ultraviolet laser was studied in laboratory.The air ionization threshold was measured in room.Continuous plasma channel was set up.The conducting experiments of plasma channel were carried out with direct current.Flash plasma channel length is about 8mm with 180mJ laser pulses.The conductive plasma channel length is about 20mm.It is possible to establish the continuous laser plasma conducting channel with nanosecond ultraviolent laser.

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Reference (11)

[1]	SIRCAR A,DWIVEDI R K,THAREJA R K.Laser induced breakdown of Ar,N2 and O2 gases using 1.064,0.532,0.355 and 0.266μm radiation[J].Appl Phys,1996,B63(6):623-627.
[2]	PECHACEK R E,RALEIGH M,GREIG J R.A study of long aerosol initiated air breakdown plasma:U S,143967[P].1984-08-06.
[3]	YANG H,ZHANG J,YU W,et al.Long plasma channels generated by femtosecond laser pulse[J].Phys Rev,2001,E65 (1):016406-1-016406-5.
[4]	WANG Y,WANG X L,ZHANG N,et al.Study of ambient air ionization with femtosecond laser pulses[J].Proc SPIE,2005,5627:105-111.
[5]	RODRIGUEZ M,BOURAYOU R,MEJEAN G,et al.Kilometer-range nonlinear propagation of femtosecond laser pulses[J].Phys Rev,2004,E69(3):036607-1-036607-7.
[6]	YUAN X,LIU J R,LU B D.Picosecond UV laser pulses propagation in atmosphere[J].Proc SPIE,2005,5627:45-50.
[7]	ZHANG J,HAO Z Q,YUAN X H,et al.Propation of intense femtosecond laser pulses in air[J].Chinese Journal of Quantum Electronics,2006,23 (5):282-294 (in Chinese).
[8]	BALL L M.Laser lightning rod system:U S,4017767[P].19774)4-12.
[9]	KHAN N,MARIUN N,ARIS I.Laser-triggered lightning discharge[J].New Journal of Physics,2002(4):61.1-61.20.
[10]	GREIC J R,PECHACER R E,RALEIGH M.Characteristics of an atmospheric discharge plasma as an RF antenna:U S,1153627[P].1982-06-09.
[11]	HERR J E.Non-lethal tetanization weapon:U S,N5675103[P].1997-10-07.

Experiment study of air ionization and plasma channel conducting with nanosecond ultraviolet laser pulses

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