Characteristics of interelectrode flashover in air with the existence of a weakly ionized plasma channel induced by a KrF laser (248 nm)

1986 ◽  
Vol 60 (11) ◽  
pp. 3845-3849 ◽  
Author(s):  
J. Sasaki ◽  
S. Kubodera ◽  
R. Ozaki ◽  
T. Uchiyama
Keyword(s):  
Plasma Channel ◽  
Krf Laser ◽  
Weakly Ionized ◽  
Weakly Ionized Plasma

scholarly journals Experiments of Discharge Guiding using Strongly and Weakly Ionized Plasma Channel produced by KrF Laser

2003 ◽  
Vol 123 (12) ◽  
pp. 1246-1252 ◽  
Author(s):  
Yoshinori Shimada ◽  
Shigeaki Uchida ◽  
Zen-ichiro Kawasaki ◽  
Tatsuhiko Yamanaka ◽  
Yasuhiro Takagi ◽  
...  
Keyword(s):  
Plasma Channel ◽  
Krf Laser ◽  
Weakly Ionized ◽  
Weakly Ionized Plasma

Optical guiding in a plasma channel having top-hat refractive index radial profile

2011 ◽  
Vol 78 (1) ◽  
pp. 39-45 ◽  
Author(s):  
F. SOHBATZADEH ◽  
S. MIRZANEJHAD ◽  
M. GHALANDARI
Keyword(s):  
Refractive Index ◽  
Laser Pulse ◽  
Kerr Effect ◽  
Plasma Channel ◽  
Radial Profile ◽  
Intense Laser ◽  
Intense Laser Pulse ◽  
Weakly Ionized ◽  
Nonlinear Kerr Effect ◽  
Weakly Ionized Plasma

AbstractIn this paper, intense laser pulse guiding through a weakly ionized plasma channel is studied numerically. The radial profile of the channel refractive index is assumed to be top-hat. The propagating intense laser pulses are Gaussian TEM00 and Laguerre–Gaussian LG01 modes. The analysis includes the effects of plasma density inhomogeneity, diffraction, further ionization by the propagating laser pulse and nonlinearity arising from the nonlinear Kerr effect. Matched conditions are obtained for both TEM00 and LG01 laser modes for a top-hat refractive index profile. It is seen that the electron density profile changes the matched condition in the transmission of the laser pulse through the plasma channel. It is also shown that the nonlinear Kerr effect changes the matched condition and becomes the dominant effect in intense laser pulse propagation through the weakly ionized plasma channel.

Lifetime evaluation of weakly ionized plasma channel by accumulation effect of charged particles by means of laser absorption

2004 ◽  
Vol 95 (11) ◽  
pp. 6007-6010 ◽  
Author(s):  
Michiteru Yamaura ◽  
Nobuya Hayashi ◽  
Satoshi Ihara ◽  
Saburoh Satoh ◽  
Chobei Yamabe
Keyword(s):  
Plasma Channel ◽  
Charged Particles ◽  
Laser Absorption ◽  
Accumulation Effect ◽  
Weakly Ionized ◽  
Weakly Ionized Plasma
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