Virtual Journal of Laser

Author(s): J. May, J. Tonge, F. Fiuza, R. A. Fonseca, L. O. Silva, C. Ren, and W. B. Mori

The acceleration and heating of electrons by an intense laser normally incident on a steep overdense plasma interface is investigated using the particle-in-cell code osiris. Energetic electrons are generated by the laser’s electric field in the vacuum region within λ/4 of the surface. Only those ele...

[Phys. Rev. E 84, 025401] Published Wed Aug 03, 2011

Author(s): T. Heßling, A. Blažević, A. Frank, D. Kraus, M. Roth, G. Schaumann, D. Schumacher, T. Stöhlker, and D. H. H. Hoffmann

At the GSI Helmholtz center for heavy-ion research combined experiments with heavy ions and laser-produced plasmas are investigated. As a preparation to utilize indirectly heated targets, where a converter hohlraum provides thermal radiation to create a more homogeneous plasma, this converter target...

[Phys. Rev. E 84, 016412] Published Thu Jul 28, 2011

Author(s): Barry Xu and S. X. Hu (胡素兴)

The electron-ion temperature relaxation essentially affects both the laser absorption in coronal plasmas and the hot-spot formation in inertial confinement fusion (ICF). It has recently been reexamined for plasma conditions closely relevant to ICF implosions using either classical molecular-dynamics...

[Phys. Rev. E 84, 016408] Published Mon Jul 25, 2011

Author(s): H. J. Zhao and M. L. Du

A negative ion irradiated by a laser provides a coherent source of electrons propagating out from the location of the negative ion. The total escape rates of the electrons when the negative ion is placed inside an open cavity in the shape of a wedge are studied. It is shown that the wedge induces si...

[Phys. Rev. E 84, 016217] Published Fri Jul 22, 2011

Author(s): Peter Hartmann, Máté Csaba Sándor, Anikó Kovács, and Zoltán Donkó

The static and dynamic (complex) shear viscosity of a single-layer dusty plasma is measured by applying, respectively, a stationary and a periodically modulated shear stress, induced by the light pressure of manipulating laser beams. Under static conditions we observe a decrease of the viscosity wit...

[Phys. Rev. E 84, 016404] Published Mon Jul 18, 2011

Author(s): J. M. Soto-Crespo, Ph. Grelu, and Nail Akhmediev

We study numerically rogue waves in dissipative systems, taking as an example a unidirectional fiber laser in a nonstationary regime of operation. The choice of specific set of parameters allows the laser to generate a chaotic sequence of pulses with a random distribution of peak amplitudes. The pro...

[Phys. Rev. E 84, 016604] Published Mon Jul 18, 2011

Author(s): Ph. Nicolaï, J.-L. Feugeas, C. Regan, M. Olazabal-Loumé, J. Breil, B. Dubroca, J.-P. Morreeuw, and V. Tikhonchuk

In the fast-ignition scheme, relativistic electrons transport energy from the laser deposition zone to the dense part of the target where the fusion reactions can be ignited. The magnetic fields and electron collisions play an important role in the collimation or defocusing of this electron beam. De...

[Phys. Rev. E 84, 016402] Published Mon Jul 11, 2011

Author(s): N. Rebrova, G. Huyet, D. Rachinskii, and A. G. Vladimirov

We study analytically and numerically a delay differential model of a passively mode-locked semiconductor laser subjected to a single-frequency coherent injection. The width of the locking cone is calculated asymptotically in the limit of small injection and zero line-width enhancement factors and c...

[Phys. Rev. E 83, 066202] Published Tue Jun 07, 2011

Author(s): W. D. Suranga Ruhunusiri, J. Goree, Yan Feng, and Bin Liu

The polygon construction method of Glaser and Clark is used to characterize melting and crystallization in a two-dimensional (2D) strongly coupled dusty plasma. Using particle positions measured by video microscopy, bonds are identified by triangulation, and unusually long bonds are deleted. The res...

[Phys. Rev. E 83, 066402] Published Fri Jun 03, 2011

Author(s): B. N. Slama-Eliau and G. Raithel

Using an optical lattice formed by four laser beams, we obtain three-dimensional light-induced crystals of 490-nm-diameter polystyrene spheres in solution. The setup yields face-centered orthorhombic optical crystals of a packing density of about 40%. An alignment procedure is developed in which the...

[Phys. Rev. E 83, 051406] Published Tue May 31, 2011