Comparison of ponderomotive self-channeling and higher-order relativistic effects on intense laser beams propagating in plasma channels

2006 ◽  
Vol 352 (4-5) ◽  
pp. 457-461 ◽  
Author(s):  
Mingwei Liu ◽  
Hong Guo ◽  
Bingju Zhou ◽  
Liqiang Tang ◽  
Xiaojuan Liu ◽  
...  
Keyword(s):  
Relativistic Effects ◽  
Higher Order ◽  
Intense Laser ◽  
Laser Beams ◽  
Plasma Channels

scholarly journals Influence of pointing fluctuation on intense laser beams propagation in plasma channels

2010 ◽  
Vol 18 (8) ◽  
pp. 8077 ◽  
Author(s):  
Mingwei Liu ◽  
Aihua Deng ◽  
Changquan Xia ◽  
Jiansheng Liu ◽  
Cheng Wang ◽  
...  
Keyword(s):  
Intense Laser ◽  
Laser Beams ◽  
Plasma Channels

scholarly journals Variational method in the study of intense laser beams propagation in plasma channels

2004 ◽  
Vol 53 (5) ◽  
pp. 1419
Author(s):  
Liu Ming-Wei ◽  
Guo Hong ◽  
Deng Dong-Mei ◽  
Zhang Yu ◽  
Chen Xu-Zong
Keyword(s):  
Variational Method ◽  
Intense Laser ◽  
Laser Beams ◽  
Plasma Channels

Relativistic effects on intense laser beam propagation in plasma channels

2003 ◽  
Vol 10 (5) ◽  
pp. 1483-1492 ◽  
Author(s):  
B. Hafizi ◽  
A. Ting ◽  
R. F. Hubbard ◽  
P. Sprangle ◽  
J. R. Peñano
Keyword(s):  
Laser Beam ◽  
Relativistic Effects ◽  
Beam Propagation ◽  
Intense Laser ◽  
Laser Beam Propagation ◽  
Intense Laser Beam ◽  
Plasma Channels

scholarly journals Self-compression of two co-propagating laser pulse having relativistic nonlinearity in plasma

2017 ◽  
Vol 35 (4) ◽  
pp. 722-729
Author(s):  
S. Kumar ◽  
P. K. Gupta ◽  
R. K. Singh ◽  
R. Uma ◽  
R. P. Sharma
Keyword(s):  
Laser Beam ◽  
Pulse Width ◽  
Pulse Compression ◽  
Group Velocity Dispersion ◽  
Refractive Index Profile ◽  
Intense Laser ◽  
Laser Beams ◽  
Critical Parameters ◽  
Beam Power ◽  
Laser Beam Intensity

AbstractThe study proposes a semi-analytical model for the pulse compression of two co-propagating intense laser beams having Gaussian intensity profile in the temporal domain. The high power laser beams create the relativistic nonlinearity during propagation in plasma, which leads to the modification of the refractive index profile. The co-propagating laser beams get self- compressed by virtue of group velocity dispersion and induced nonlinearity. The induced nonlinearity in the plasma broadens the frequency spectrum of the pulse via self-phase modulation, turn to shorter the pulse duration and enhancement of laser beam intensity. The nonlinear Schrodinger equations were set up for co-propagating laser beams in plasmas and have been solved in Matlab by considering paraxial approximation. The propagation characteristics of both laser beams inside plasma are divided into three regions through the critical divider curve, which has been plotted between pulse width τ01 and laser beam power P01. Based on the preferred value of critical parameters, these regions are oscillatory compression, oscillatory broadening, and steady broadening. In findings, it is observed that the compression of the laser beam depends on the combined intensity of both beams, plasma density, and initial pulse width.

Practical spot size definition for single higher-order rectangular-mode laser beams

1981 ◽  
Vol 20 (10) ◽  
pp. 1728 ◽  
Author(s):  
James T. Luxon ◽  
David E. Parker
Keyword(s):  
Spot Size ◽  
Higher Order ◽  
Laser Beams ◽  
Mode Laser

Generation of cluster-type entangled coherent states using weak nonlinearities

2011 ◽  
Vol 11 (1&2) ◽  
pp. 124-141
Author(s):  
Nguyen B. An ◽  
Kisik Kim ◽  
Jaewan Kim
Keyword(s):  
Coherent States ◽  
Single Photon ◽  
Optical Devices ◽  
Phase Shifters ◽  
Intense Laser ◽  
Laser Beams ◽  
Beam Splitters ◽  
Photo Detectors ◽  
Cluster Type ◽  
Entangled Coherent States

We propose a scheme to generate a recently introduced type of entangled coherent states using realistic weak cross-Kerr nonlinearities and intense laser beams. An intense laser can be filtered to make a faint one to be used for production of a single photon which is necessary in our scheme. The optical devices used are conventional ones such as interferometer, mirrors, beam-splitters, phase-shifters and photo-detectors. We also provide a detailed analysis on the effects of possible imperfections and decoherence showing that our scheme is robust against such effects.

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