Self-similar motion of laser half-space plasmas. I. Deflagration regime

Self-guiding of ultrashort, relativistically intense laser pulses through underdense plasmas in the blowout regime.

The self-guiding of relativistically intense but ultrashort laser pulses has been experimentally investigated as a function of laser power, plasma density, and plasma length in the blowout regime. The extent of self-guiding, observed by imaging the plasma exit, is shown to be limited by nonlinear pump depletion with observed self-guiding of over tens of Rayleigh lengths. Spectrally resolved ima...

Space Resolved Study of Laser Produced Plasmas

The study of plasma accelerated ions is an important topic nowadays [1]. The acceleration of ions is produced for electric fields caused by plasma density gradients. So a diagnostic of the plasma density and temperature is necessary. It is frequently achieved using spectroscopic methods with the light from He-like and Li-like plasma ion transitions emitted in the soft x-ray region, 1-1000 Å wav...

Laser-plasmas in the relativistic-transparency regime: Science and applications

Laser-plasma interactions in the novel regime of relativistically induced transparency (RIT) have been harnessed to generate intense ion beams efficiently with average energies exceeding 10 MeV/nucleon (>100 MeV for protons) at "table-top" scales in experiments at the LANL Trident Laser. By further optimization of the laser and target, the RIT regime has been extended into a self-organized plas...

Self-similar motion of three point vortices

Plane Strain Deformation of a Poroelastic Half-Space Lying Over Another Poroelastic Half-Space

The plane strain deformation of an isotropic, homogeneous, poroelastic medium caused by an inclined line-load is studied using the Biot linearized theory for fluid saturated porous materials. The analytical expressions for the displacements and stresses in the medium are obtained by applying suitable boundary conditions. The solutions are obtained analytically for the limiting case of undrained...