scholarly journals Flying mirror model for interaction of a super-intense laser pulse with a thin plasma layer: Transparency and shaping of linearly polarized laser pulses

2007 ◽  
Vol 14 (11) ◽  
pp. 113102 ◽  
Author(s):  
Victor V. Kulagin ◽  
Vladimir A. Cherepenin ◽  
Min Sup Hur ◽  
Hyyong Suk
Keyword(s):  
Laser Pulse ◽  
Plasma Layer ◽  
Laser Pulses ◽  
Intense Laser ◽  
Intense Laser Pulse ◽  
Linearly Polarized ◽  
Thin Plasma

Self-Guided Intense Laser Pulse Propagation in Air

2001 ◽  
Vol 6 (1) ◽  
pp. 21-26
Author(s):  
R. Danielius ◽  
D. Mikalauskas ◽  
A. Dubietis ◽  
A. Piskarskas
Keyword(s):  
Laser Pulse ◽  
Laser Beam ◽  
Phase Modulation ◽  
Large Scale ◽  
Pulse Propagation ◽  
Picosecond Laser ◽  
Laser Pulses ◽  
Intense Laser ◽  
Intense Laser Pulse ◽  
Self Phase Modulation

We report on observation of self-guiding of picosecond laser pulses in air that produces large-scale self-phase modulation. The converging picosecond laser beam produced a confined filament over 3 m of propagation with the whitelight spectrum.

scholarly journals Acceleration of high-quality, well-collimated return beam of relativistic electrons by intense laser pulse in a low-density plasma

2004 ◽  
Vol 22 (3) ◽  
pp. 307-314 ◽  
Author(s):  
LI BAIWEN ◽  
S. ISHIGURO ◽  
M.M. šKORIĆ ◽  
H. TAKAMARU ◽  
T. SATO
Keyword(s):  
Electron Beam ◽  
Laser Pulse ◽  
Plasma Layer ◽  
Time History ◽  
Electron Acceleration ◽  
Intense Laser ◽  
Acceleration Process ◽  
Relativistic Electrons ◽  
Intense Laser Pulse ◽  
High Quality

The mechanism of electron acceleration by intense laser pulse interacting with an underdense plasma layer is examined by one-dimensional particle-in-cell (1D-PIC) simulations. The standard dephasing limit and the electron acceleration process are discussed briefly. A new phenomenon, of short high-quality, well-collimated return relativistic electron beam with thermal energy spread, is observed in the direction opposite to laser propagation. The process of the electron beam formation, its characteristics, and the time-history inxandpxspace for test electrons in the beam, are analyzed and exposed clearly. Finally, an estimate for the maximum electron energy appears in a good agreement with simulation results.

scholarly journals Cylindrically and non-cylindrically symmetric expansion dynamics of tin microdroplets after ultrashort laser pulse impact

2021 ◽  
Vol 127 (2) ◽  
Author(s):  
Tiago de Faria Pinto ◽  
Jan Mathijssen ◽  
Randy Meijer ◽  
Hao Zhang ◽  
Alex Bayerle ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Droplet Deformation ◽  
Cylindrically Symmetric ◽  
Linearly Polarized ◽  
Particle Hydrodynamics ◽  
Deformation Dynamics ◽  
Smoothed Particle ◽  
Asymmetric Shock

AbstractIn this work, the expansion dynamics of liquid tin micro-droplets irradiated by femtosecond laser pulses were investigated. The effects of laser pulse duration, energy, and polarization on ablation, cavitation, and spallation dynamics were studied using laser pulse durations ranging from 220 fs to 10 ps, with energies ranging from 1 to 5 mJ, for micro-droplets with an initial radius of 15 and 23 $$\upmu$$ μ m. Using linearly polarized laser pulses, cylindrically asymmetric shock waves were produced, leading to novel non-symmetric target shapes, the asymmetry of which was studied as a function of laser pulse parameters and droplet size. A good qualitative agreement was obtained between smoothed-particle hydrodynamics simulations and high-resolution stroboscopic experimental data of the droplet deformation dynamics.

Reduction of the Coherence Time of an Intense Laser Pulse Propagating through a Plasma

2002 ◽  
Vol 88 (19) ◽  
Author(s):  
J. Fuchs ◽  
C. Labaune ◽  
H. Bandulet ◽  
P. Michel ◽  
S. Depierreux ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Coherence Time ◽  
Intense Laser ◽  
Intense Laser Pulse

scholarly journals Focusing of intense laser pulse by a hollow cone

2010 ◽  
Vol 28 (2) ◽  
pp. 293-298 ◽  
Author(s):  
Wei Yu ◽  
Lihua Cao ◽  
M.Y. Yu ◽  
A.L. Lei ◽  
Z.M. Sheng ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Strong Field ◽  
High Energy ◽  
Plasma Boundary ◽  
High Energy Density ◽  
Intense Laser ◽  
Intense Laser Pulse ◽  
Hollow Cone ◽  
Conical Channel ◽  
Boundary Plasma

AbstractIt is shown that an intense laser pulse can be focused by a conical channel. This anomalous light focusing can be attributed to a hitherto ignored effect in nonlinear optics, namely that the boundary response depends on the light intensity: the inner cone surface is ionized and the laser pulse is in turn modified by the resulting boundary plasma. The interaction creates a new self-consistently evolving light-plasma boundary, which greatly reduces reflection and enhances forward propagation of the light pulse. The hollow cone can thus be used for attaining extremely high light intensities for applications in strong-field and high energy-density physics and other areas.

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