Laser plasma interaction with micro-engineered targets at relativistic intensities has been greatly promoted by recent progress in the high contrast lasers and the manufacture of advanced micro- and nano-structures. This opens new possibilities for the physics of laser-matter interaction. Here we propose a novel approach that leverages the advantages of high-pressure CO2 laser, laser-waveguide ...

An expansion of guided free-electron laser radiation is presented in terms of eigenmodes of a transversely varying dielectric waveguide. For a particular quadratic distribution of the refractive index, the constituent eigenmode expansion basis is equivalent to a free-space paraxial basis evaluated at the mode waist, which facilitates investigations of guided coupling to naturally diffracting Ga...

The efficient reduction of the pulse length and the energy width of electron beams plays a crucial role in the generation of short pulses in the range of sub-picoseconds at future light sources. At the radiation source ELBE in DresdenRossendorf short pulses are required for coherent THz generation and laser-electron beam interaction experiments such as X-ray Thomson scattering. Energy dechirpin...

INTRODUCTION The enhancement of peak power by means of RF pulse compression has found important application for driving high energy electron linacs, the SLAC linac in particular. The SLAC Energy Doubler [l] (SLED), however, yields a pulse shape in the form of a decaying exponential which lim its the applicability of the method. Two methods of improving this situation have been suggested: binary...

Commercially available CdSe/ZnS and PbSe colloidal semiconductor quantum dots were employed to produce both an electron beam sensitive poly methyl methacrylate PMMA -quantum-dot QD positive composite via a prepolymerization processing and an electron beam and ultraviolet UV light sensitive SU-8-QD negative composite via a direct dispersion procedure. Compared to the QDs in the original colloida...