Virtual Journal of Laser

Author(s): Christoph Eichhorn, Stephan Fritzsche, Stefan Löhle, Andreas Knapp, and Monika Auweter-Kurtz
Laser-induced fluorescence of two-photon excited 8p , 9p , J=0,2 and 5f , 6f , J=2 levels in neutral xenon has been investigated in the pressure regime between 4 and 120 Pa. Radiative lifetimes and collisional deactivation rates have been deduced especially for the 5f[3/2]_{2} , 5f[5/2]_{2} , and 8p...
[Phys. Rev. E 80, 026401] Published Thu Aug 06, 2009

Author(s): J. P. Palastro and T. M. Antonsen
Copropagation of a laser pulse and a relativistic electron beam in a corrugated plasma channel has been proposed for the direct laser acceleration of electrons [Palastro , Phys. Rev. E 77, 036405 (2008)]. The corrugated plasma channel allows for the guiding of laser pulses composed of subluminal spa...
[Phys. Rev. E 80, 016409] Published Tue Jul 28, 2009

Author(s): C. K. Li, J. A. Frenje, R. D. Petrasso, F. H. Séguin, P. A. Amendt, O. L. Landen, R. P. J. Town, R. Betti, J. P. Knauer, D. D. Meyerhofer, and J. M. Soures
Recent experiments using proton backlighting of laser-foil interactions provide unique opportunities for studying magnetized plasma instabilities in laser-produced high-energy-density plasmas. Time-gated proton radiograph images indicate that the outer structure of a magnetic field entrained in a he...
[Phys. Rev. E 80, 016407] Published Wed Jul 15, 2009

Author(s): Victor V. Kulagin, Vladimir A. Cherepenin, Yuri V. Gulyaev, Vladimir N. Kornienko, Ki Hong Pae, Victor V. Valuev, Jongmin Lee, and Hyyong Suk
For controllable generation of an isolated attosecond relativistic electron bunch [relativistic electron mirror (REM)] with nearly solid-state density, we proposed [V. V. Kulagin , Phys. Rev. Lett. 99, 124801 (2007)] to use a solid nanofilm illuminated normally by an ultraintense femtosecond laser p...
[Phys. Rev. E 80, 016404] Published Mon Jul 13, 2009

Author(s): Ming Chen, Xiangdong Liu, Mingwen Zhao, Chuansong Chen, and Baoyuan Man
Optical emission spectroscopy (OES) was used to study the evolution behavior of the neutral Si atoms in the plasma produced by nanosecond pulsed-laser beam irradiating on SiC crystal targets. The OES measurements indicated that the electron temperature and density in the plasma had maximum values ar...
[Phys. Rev. E 80, 016405] Published Mon Jul 13, 2009

Author(s): I. V. Churina, B.-I. Cho, A. Bernstein, D. S. Stoker, A. Dalton, D. R. Symes, and T. Ditmire
The optical conductivity of a dense femtosecond laser-heated aluminum plasma heated to 0.1–1.5 eV was measured using frequency-domain interferometry with chirped pulses, permitting simultaneous observation of optical probe reflectivity and probe pulse phase shift. Coupled with published models of ...

[Phys. Rev. E 80, 015401] Published Thu Jul 09, 2009

Author(s): J. Myatt, J. A. Delettrez, A. V. Maximov, D. D. Meyerhofer, R. W. Short, C. Stoeckl, and M. Storm
Expressions for the yield of electron-positron pairs, their energy spectra, and production rates have been obtained in the interaction of multi-kJ pulses of high-intensity laser light interacting with solid targets. The Bethe-Heitler conversion of hard x-ray bremsstrahlung [D. A. Gryaznykh, Y. Z. Ka...
[Phys. Rev. E 79, 066409] Published Tue Jun 30, 2009

Author(s): A. J. Kemp, Y. Sentoku, and M. Tabak
We investigate the hydrodynamic response of plasma gradients during the interaction with ultraintense energetic laser pulses using kinetic particle simulations. Energetic laser pulses are capable of compressing preformed plasma gradients over short times, while accelerating low-density plasma backwa...
[Phys. Rev. E 79, 066406] Published Mon Jun 22, 2009

Author(s): V. Flunkert, O. D’Huys, J. Danckaert, I. Fischer, and E. Schöll
We theoretically study chaos synchronization of two lasers which are delay coupled via an active or a passive relay. While the lasers are synchronized, their dynamics is identical to a single laser with delayed feedback for a passive relay and identical to two delay-coupled lasers for an active rela...

[Phys. Rev. E 79, 065201] Published Thu Jun 04, 2009

Author(s): X. G. Dong, Z. M. Sheng, H. C. Wu, W. M. Wang, and J. Zhang
Single-cycle strong terahertz pulses can be generated by irradiating ultrashort intense laser pulses onto a tenuous plasma slab. At the plasma surface, laser ponderomotive force accelerates electrons and induces net currents, which radiate terahertz pulses. Our theoretical model suggests that if τ_...
[Phys. Rev. E 79, 046411] Published Thu Apr 30, 2009