Physical Review E

Propagation of a laser-driven relativistic electron beam inside a solid dielectric

Author(s): G. S. Sarkisov, V. V. Ivanov, P. Leblanc, Y. Sentoku, K. Yates, P. Wiewior, O. Chalyy, A. Astanovitskiy, V. Yu. Bychenkov, D. Jobe, and R. B. Spielman

Laser probe diagnostics: shadowgraphy, interferometry, and polarimetry were used for a comprehensive characterization of ionization wave dynamics inside a glass target induced by a laser-driven, relativistic electron beam. Experiments were done using the 50-TW Leopard laser at the University of Neva...

[Phys. Rev. E 86, 036412] Published Fri Sep 28, 2012

Effect of two-particle correlations on x-ray coherent diffractive imaging studies performed with continuum models

Author(s): Zoltan Jurek, Robert Thiele, Beata Ziaja, and Robin Santra

Coherent diffraction imaging (CDI) of single molecules at atomic resolution is a major goal for the x-ray free-electron lasers (XFELs). However, during an imaging pulse, the fast laser-induced ionization may strongly affect the recorded diffraction pattern of the irradiated sample. The radiation tol...

[Phys. Rev. E 86, 036411] Published Thu Sep 27, 2012

Kinetic Monte Carlo simulations for transient thermal fields: Computational methodology and application to the submicrosecond laser processes in implanted silicon

Author(s): G. Fisicaro, L. Pelaz, P. Lopez, and A. La Magna

Pulsed laser irradiation of damaged solids promotes ultrafast nonequilibrium kinetics, on the submicrosecond scale, leading to microscopic modifications of the material state. Reliable theoretical predictions of this evolution can be achieved only by simulating particle interactions in the presence ...

[Phys. Rev. E 86, 036705] Published Thu Sep 27, 2012

Nonlinear propagation of light in structured media: Generalized unidirectional pulse propagation equations

Author(s): J. Andreasen and M. Kolesik

Unidirectional pulse propagation equations [UPPE, Phys. Rev. E 70 036604 (2004)] have provided a theoretical underpinning for computer-aided investigations into dynamics of high-power ultrashort laser pulses and have been successfully utilized for almost a decade. Unfortunately, they are restricte...

[Phys. Rev. E 86, 036706] Published Thu Sep 27, 2012

Cavitation dynamics and directional microbubble ejection induced by intense femtosecond laser pulses in liquids

Author(s): D. Faccio, G. Tamošauskas, E. Rubino, J. Darginavičius, D. G. Papazoglou, S. Tzortzakis, A. Couairon, and A. Dubietis

We study cavitation dynamics when focusing ring-shaped femtosecond laser beams in water. This focusing geometry reduces detrimental nonlinear beam distortions and enhances energy deposition within the medium, localized at the focal spot. We observe remarkable postcollapse dynamics of elongated cavit...

[Phys. Rev. E 86, 036304] Published Wed Sep 05, 2012

Modeling of radiation losses in ultrahigh power laser-matter interaction

Author(s): R. Capdessus, E. d'Humières, and V. T. Tikhonchuk

Radiation losses of electrons in ultraintense laser fields constitute a process that can be important for electron and ion acceleration and creation of secondary emissions. The importance of this effect for ion acceleration to high energies is studied as a function of the laser intensity and the tar...

[Phys. Rev. E 86, 036401] Published Tue Sep 04, 2012

Coupling of detailed configuration kinetics and hydrodynamics in materials submitted to x-ray free-electron-laser irradiation

Author(s): O. Peyrusse

We describe a model for the study of the interaction of short x-ray free-electron laser (XFEL) pulses with matter. Hydrodynamics is solved in one-dimensional planar geometry together with XFEL energy deposition, transport by thermal conduction and electron-ion energy exchange. Along with XFEL energy...

[Phys. Rev. E 86, 036403] Published Tue Sep 04, 2012

Plasma effects on harmonic spectra generated from moderately relativistic laser-plasma interactions

Author(s): R. Ondarza-Rovira and T. J. M. Boyd

When intense p-polarized laser light is incident on a plasma with an electron density many times the critical density, the flux of fast electrons created by Brunel absorption excites plasma oscillations. These oscillations may in turn affect the spectrum of high harmonics by modulating the spectrum ...

[Phys. Rev. E 86, 026407] Published Wed Aug 29, 2012

Energy transport in short-pulse-laser-heated targets measured using extreme ultraviolet laser backlighting

Author(s): L. A. Wilson, G. J. Tallents, J. Pasley, D. S. Whittaker, S. J. Rose, O. Guilbaud, K. Cassou, S. Kazamias, S. Daboussi, M. Pittman, O. Delmas, J. Demailly, O. Neveu, and D. Ros

The accurate characterization of thermal electron transport and the determination of heating by suprathermal electrons in laser driven solid targets are both issues of great importance to the current experiments being performed at the National Ignition Facility, which aims to achieve thermonuclear f...

[Phys. Rev. E 86, 026406] Published Tue Aug 28, 2012

Effect of the Rayleigh-Taylor instability on maximum reachable temperatures in laser-induced bubbles

Author(s): Ludmila M. Rechiman, Fabián J. Bonetto, and Juan M. Rosselló

Laser-induced bubbles provide an effective vehicle to achieve high-energy concentrations and maximum temperatures in bubble luminescence phenomena. One limitation to the temperatures that can be achieved is the development of the Rayleigh-Taylor instability (RTI) during the instants previous to the ...

[Phys. Rev. E 86, 027301] Published Wed Aug 15, 2012

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