Numerical Simulations of Laser Pulse Propagation in Quantum Active Media: Using a Semiclassical Model

2021 ◽  
pp. 2-8
Author(s):  
Elliot Lu ◽  
Connor Glosser ◽  
Carlo Piermarocchi ◽  
Shanker Balasubramaniam
Keyword(s):  
Laser Pulse ◽  
Numerical Simulations ◽  
Pulse Propagation ◽  
Active Media ◽  
Semiclassical Model

Ultrashort Laser Pulse Propagation in Water

2011 ◽  
Author(s):  
George W. Kattawar ◽  
Alexei V. Sokolov
Keyword(s):  
Laser Pulse ◽  
Pulse Propagation ◽  
Ultrashort Laser Pulse ◽  
Ultrashort Laser

Modulation instability in nonlinear chiral fiber

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Demissie Jobir Gelmecha ◽  
Ram Sewak Singh
Keyword(s):  
Theoretical Model ◽  
Numerical Simulations ◽  
Pulse Propagation ◽  
Modulation Instability ◽  
Constitutive Relations ◽  
Gain Spectrum ◽  
Circularly Polarized ◽  
Left Handed ◽  
Simulation Results ◽  
The Difference

AbstractIn this paper, the rigorous derivations of generalized coupled chiral nonlinear Schrödinger equations (CCNLSEs) and their modulation instability analysis have been explored theoretically and computationally. With the consideration of Maxwell’s equations and Post’s constitutive relations, a generalized CCNLSE has been derived, which describes the evolution of left-handed circularly polarized (LCP) and right-handed circularly polarized (RCP) components propagating through single-core nonlinear chiral fiber. The analysis of modulation instability in nonlinear chiral fiber has been investigated starting from CCNLSEs. Based on a theoretical model and numerical simulations, the difference on the modulation instability gain spectrum in LCP and RCP components through chiral fiber has been analyzed by considering loss and chirality into account. The obtained simulation results have shown that the loss distorts the sidebands of the modulation instability gain spectrum, while chirality modulates the gain for LCP and RCP components in a different manner. This suggests that adjusting chirality strength may control the loss, and nonlinearity simultaneously provides stable modulated pulse propagation.

scholarly journals Radial density profile and stability of capillary discharge plasma waveguides of lengths up to 40 cm

2021 ◽  
Vol 9 ◽  
Author(s):  
M. Turner ◽  
A. J. Gonsalves ◽  
S. S. Bulanov ◽  
C. Benedetti ◽  
N. A. Bobrova ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Electron Density ◽  
Density Profile ◽  
Pulse Propagation ◽  
Spot Size ◽  
Capillary Discharge ◽  
Electron Density Profile ◽  
Plasma Waveguide ◽  
Wakefield Acceleration ◽  
Plasma Wakefield

Abstract We measured the parameter reproducibility and radial electron density profile of capillary discharge waveguides with diameters of 650 $\mathrm{\mu} \mathrm{m}$ to 2 mm and lengths of 9 to 40 cm. To the best of the authors’ knowledge, 40 cm is the longest discharge capillary plasma waveguide to date. This length is important for $\ge$ 10 GeV electron energy gain in a single laser-driven plasma wakefield acceleration stage. Evaluation of waveguide parameter variations showed that their focusing strength was stable and reproducible to $<0.2$ % and their average on-axis plasma electron density to $<1$ %. These variations explain only a small fraction of laser-driven plasma wakefield acceleration electron bunch variations observed in experiments to date. Measurements of laser pulse centroid oscillations revealed that the radial channel profile rises faster than parabolic and is in excellent agreement with magnetohydrodynamic simulation results. We show that the effects of non-parabolic contributions on Gaussian pulse propagation were negligible when the pulse was approximately matched to the channel. However, they affected pulse propagation for a non-matched configuration in which the waveguide was used as a plasma telescope to change the focused laser pulse spot size.

Intense solitary laser pulse propagation in a plasma

1984 ◽  
Vol 27 (2) ◽  
pp. 327 ◽  
Author(s):  
P. K. Shukla ◽  
M. Y. Yu ◽  
N. L. Tsintsadze
Keyword(s):  
Laser Pulse ◽  
Pulse Propagation

Laser pulse propagation in optical fibers as destroying factor where outer local thermal actions apply

2001 ◽  
Author(s):  
Vladimir A. Burdin ◽  
Alexey V. Voronkov ◽  
Alexander N. Platonov ◽  
Andrew V. Balobanov
Keyword(s):  
Laser Pulse ◽  
Optical Fibers ◽  
Pulse Propagation

scholarly journals Variational formulation of classical and quantum models for intense laser pulse propagation

2018 ◽  
Vol 399 ◽  
pp. 66-84 ◽  
Author(s):  
S.A. Berman ◽  
C. Chandre ◽  
J. Dubois ◽  
F. Mauger ◽  
M. Perin ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Variational Formulation ◽  
Pulse Propagation ◽  
Intense Laser ◽  
Intense Laser Pulse ◽  
Quantum Models

Nonsymmetric laser-pulse propagation in capillary tubes with variable radius

2012 ◽  
Vol 86 (6) ◽  
Author(s):  
M. Veysman ◽  
N. E. Andreev ◽  
G. Maynard ◽  
B. Cros
Keyword(s):  
Laser Pulse ◽  
Pulse Propagation ◽  
Capillary Tubes ◽  
Variable Radius
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