Reactive high power pulsed magnetron sputtering system (r-HIPIMS) was used for the deposition of nanocomposite layers CuCNx on milling tools. This coating damps vibration of this tool during a milling process. This coating is composed of composite layers CuCNx and metallic Cu interlayers. These interlayers improved adhesion and cohesion of this coating and further increased damping of mechanical vibration. These multilayers were deposited by the r-...
We have studied both theoretically and experimentally a quantum phenomenon of temporal steering of a quantum state. This phenomenon is a temporal analog of a spatial quantum steering known earlier and it has direct impact to the area of security of quantum communications. We performed experimental tests, based on the violation of temporal steering inequalities, of the security of two quantum key distribution protocols. Thus, these results can lead to applications for...
The effect of a dense plasma environment on the energy levels of an embedded ion is usually described in terms of the lowering of its continuum level. Using the tunable x-ray free-electron laser, we have carried out an experiment showing that the standard density-dependent analytical models are inadequate to describe solid-density plasmas at the temperatures studied. These results are important for astrophysics, planetology, and inertial confinement fusion....
In this research, clear connections have been established between the thresholds and mechanisms of the damage and white-light generation upon femtosecond laser irradiation of wide-bandgap transparent materials such as Corning Willow glass. The experimental results demonstrate co-existence of several ablation mechanisms which can be separated in time. To gain insight into the processes triggered by laser radiation in glass, sophisticated numerical simulations have been...
A high-power pulsed laser is focused onto a solid-hydrogen target to accelerate forward a collimated stream of protons in the range 0.1–1 MeV. This result is achieved for the first time through the combination of a sophisticated target system (H2 thin ribbon) operating at cryogenic temperature (∼10 K). Both the H plasma and the accelerated proton beam are fully characterized by in situ and ex situ diagnostics.
A detailed analysis of the various stages of strong coupling Brillouin plasma amplification, emphasizing the importance of the chirp which can be of threefold origin: the intrinsic one driven by the amplification process, the one originating from the chirped-pulse generated laser pulses, and the one associated with the plasma profile. It has importance to understand and control cross-beam energy transfer in inertial confinement fusion.
Technologické centrum AV ČR, 11.10.2018.
Czech Liaison Office...
Radio Praha in English, 4.5.2018.
Experts from the Institute of...
Prague Daily Monitor, 6.3.2018.
Czech astronomer Martin Masek...
FLEET.ORG, 19.8.2017.
There is considerable excitement about...
