Relativistic channeling of a linearly polarized laser pulse in overdense plasma

Evolution of a Plasma Waveguide Created during Relativistic-Ponderomotive Self-Channeling of an Intense Laser Pulse

An on-axis plasma density depression channel was observed during and after the passage of a relativistically and ponderomotively self-guided laser pulse through a plasma. Optical interferometry was used to produce time-resolved plasma density distributions, revealing the formation of a plasma waveguide. These results were complemented by the guiding of a collinear trailing pulse. [S0031-9007(98...

Modulation of harmonic emission spectra in relativistic laser interactions with overdense plasma

Linearly polarized waves with constant phase velocity in relativistic plasmas

The propagation of plane linearly polarized electromagnetic waves in cold plasmas at relativistic intensities is studied analytically under the assumption of a constant phase velocity. A system of coupled relativistic harmonic oscillators for the Lagrangian coordinates of the particles is derived. Based on this model, a perturbation expansion is carried out to solve the equations for small plas...

Intense circularly polarized attosecond pulse generation from relativistic laser plasmas using few-cycle laser pulses.

We have investigated the polarization of attosecond light pulses generated from relativistic few-cycle laser pulse interaction with the surface of overdense plasmas using particle-in-cell simulation. Under suitable conditions, a desired polarization state of the generated attosecond pulse can be achieved by controlling the polarization of the incident laser. In particular, an elliptically polar...

Spontaneous emergence of non-planar electron orbits during direct laser acceleration by a linearly polarized laser pulse