Plasma channel formation in the wake of a short laser pulse

1997 ◽  
Author(s):  
E. Esarey ◽  
A. Ting ◽  
K. Krushelnick ◽  
C. Moore ◽  
M. Baine ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Plasma Channel ◽  
Short Laser Pulse ◽  
Channel Formation

Plasma channel formation in the knife-like focus of laser beam

2020 ◽  
Vol 86 (3) ◽  
Author(s):  
O. G. Olkhovskaya ◽  
G. A. Bagdasarov ◽  
N. A. Bobrova ◽  
V. A. Gasilov ◽  
L. V. N. Goncalves ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Laser Beam ◽  
Plasma Channel ◽  
Focal Length ◽  
Computer Code ◽  
Nanosecond Laser Pulse ◽  
Nanosecond Laser ◽  
Channel Formation ◽  
Azimuthal Symmetry ◽  
Sufficient Degree

The plasma channel formation in the focus of a knife-like nanosecond laser pulse irradiating a gas target is studied theoretically, and in gas-dynamics computer simulations. The distribution of the electromagnetic field in the focus region, obtained analytically, is used to calculate the energy deposition in the plasma, which then is implemented in the magnetohydrodynamic computer code. The modelling of the channel evolution shows that the plasma profile, which can guide the laser pulse, is formed by the tightly focused short knife-like lasers. The results of the simulations show that a proper choice of the convergence angle of a knife-like laser beam (determined by the focal length of the last cylindrical lens), and laser pulse duration may provide a sufficient degree of azimuthal symmetry of the formed plasma channel.

scholarly journals Ionization-induced leaking-mode channeling of intense short laser pulses in gases

1999 ◽  
Vol 17 (1) ◽  
pp. 129-138 ◽  
Author(s):  
A.M. SERGEEV ◽  
M. LONTANO ◽  
A.V. KIM ◽  
V.B. GILDENBURG ◽  
M.D. CHERNOBROVTSEVA ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Plasma Channel ◽  
Computational Study ◽  
Laser Pulses ◽  
Ultrashort Laser Pulses ◽  
Short Laser Pulse ◽  
Saturation Regime ◽  
Short Laser Pulses ◽  
Ultrashort Laser ◽  
Guiding Effect

We demonstrate that short laser pulse self-guiding over distances of many Rayleigh lengths can be achieved in the absence of any focusing nonlinearity as a result of trapping of a leaking wave in a plasma channel produced by field-induced ionization in the saturation regime. A detailed computational study of the new self-guiding effect in both cases of comparatively long laser pulses, when the traditional approximation of the slowly varying complex amplitude is valid, and of high intense ultrashort laser pulses comprising only few field cycles have been performed.

Study of channel formation and relativistic ultra-short laser pulse propagation in helium plasma

2016 ◽  
Vol 58 (5) ◽  
pp. 055007 ◽  
Author(s):  
Changhai Yu ◽  
Ye Tian ◽  
Wentao Li ◽  
Zhijun Zhang ◽  
Rong Qi ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Pulse Propagation ◽  
Short Laser Pulse ◽  
Helium Plasma ◽  
Channel Formation

Dynamics of a plasma channel created by the wakefield of a short laser pulse

2003 ◽  
Vol 10 (4) ◽  
pp. 1124-1134 ◽  
Author(s):  
L. M. Gorbunov ◽  
P. Mora ◽  
A. A. Solodov
Keyword(s):  
Laser Pulse ◽  
Plasma Channel ◽  
Short Laser Pulse

scholarly journals Self-focusing, channel formation, and high-energy ion generation in interaction of an intense short laser pulse with a He jet

1999 ◽  
Vol 59 (6) ◽  
pp. 7042-7054 ◽  
Author(s):  
G. S. Sarkisov ◽  
V. Yu. Bychenkov ◽  
V. N. Novikov ◽  
V. T. Tikhonchuk ◽  
A. Maksimchuk ◽  
...  
Keyword(s):  
Laser Pulse ◽  
High Energy ◽  
Short Laser Pulse ◽  
Channel Formation ◽  
Ion Generation ◽  
Self Focusing

Wakefield effects and solitary waves of an intense short laser pulse propagation in a plasma channel

2011 ◽  
Vol 18 (10) ◽  
pp. 103106 ◽  
Author(s):  
Xue-Ren Hong ◽  
Bai-Song Xie ◽  
Shan Zhang ◽  
Hai-Cheng Wu ◽  
Xue-Yan Zhao
Keyword(s):  
Laser Pulse ◽  
Solitary Waves ◽  
Pulse Propagation ◽  
Plasma Channel ◽  
Short Laser Pulse
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