The generation of ultrahigh intense pulse has open up a new field in
optics, the field of relativistic nonlinear optics, where the nonlinearity
is dictated by the relativistic character of the electron. This young field
has already produced a series of landmark experiments. Among them are the
generation of energetic beams of particles
(electrons, protons, ions, positrons), as well as beams of X-ray and
More recently it was shown by PIC simulations, that the light-induced large pressure on the critical surface could move the critical surface at relativistic velocity hence producing simultaneously short attosecond electron and attosecond electromagnetic pulses by relativistic compression. This novel approach to attosecond generation offers a new and efficient route to attosecond generation with some unique features: efficiency, pulse isolation and the potential to accommodate arbitrarily large amount of energy, since the plasma cannot be damaged. It has also been shown that the process of attosecond generation is accompanied by the generation of synchronized attosecond electron and photon pulses. In addition there is the possibility to scatter the laser pulse itself on the ultra short electron pulses to produce by coherent Thomson scattering ultra bright X-ray beams.
Finally, the efficient relativistic compression of laser pulses offers the possibility to produce pulses 1000 times shorter (few as) in the nm range without any limit in energy. The energy density would be such that nonlinear QED effects such as vacuum polarization or pair generation could be observed.In summary this overview will show that ultra relativistic optics could be a new gateway to attosecond physics, that could unify, Nuclear Physics High Energy Physics, astrophysics, General Relativity, Cosmology and Nonlinear QED
Begin streaming QuickTime of the whole talk (high bandwidth).
Begin streaming RealMedia for the whole talk: high bandwidth or medium bandwidth.
Or, stream audio only for the whole talk: high bandwidth or low bandwidth. (Or, right-click to download the whole audio file.)
Author entry (protected)