The advent of ultrahigh-power femtosecond lasers creates a need for an entirely new class
of optical components based on plasmas. The most promising of these are known as plasma …

Harmonic generation in the limit of ultrasteep density gradients is studied experimentally.
Observations reveal that, while the efficient generation of high order harmonics from …

For experiments in plasma, nuclear, and high-energy physics, there is a strong demand for
laser pulses exhibiting relativistic intensity, few-cycle pulse duration, and a very high …

The conditions required for the production of isolated attosecond pulses from relativistically
oscillating mirrors (ROM) are investigated numerically and experimentally. In simulations …

Ultrashort pulsed lasers provide uniquely detailed access to the ultrafast dynamics of
physical, chemical, and biological systems, but only a handful of wavelengths are directly …

High-harmonic generation by a laser-driven solid slab is simulated using time-dependent
density functional theory. Multiple harmonic plateaus up to very high harmonic orders are …

The efficiency of high-order harmonic generation from a relativistic laser interacting with
solid targets depends greatly on surface plasma distribution. The usual method of …

Coherent x-ray beams with a subfemtosecond (<? format?><<? format?> 10-15 s) pulse
duration will enable measurements of fundamental atomic processes in a completely new …

Relativistic surface high harmonics have been considered a unique source for the
generation of intense isolated attosecond pulses in the extreme ultra-violet and x-ray …

The interaction of ultra-intense laser pulses with matter opened the way to generate the
shortest light pulses available nowadays in the attosecond regime. Ionized solid surfaces …