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The HiLASE project focuses on development of high-repetition lasers and laser systems that will find use in industry, in small- and medium-scale research laboratories, and in future European large-scale facilities that will be part of the European Research Area (ERA). The project will specifically focus on diode pumped solid state laser systems (...
ELI (Extreme Light Infrastructure) is an international project, identified by the European Strategy Forum on Research Infrastructures (ESFRI) and included in the prestigious list, the ESFRI Roadmap, as a high priority project within the large infrastructures for research planned for the European Union’s European Research Area (ERA), which aims to...
HiPER - European High Power laser Energy Research facility (Preparatory Phase Study) is a project of the European Community No. 211737, which is realized in the 7th Community Frame Programme (FP7-Infrastructures). The project aims to develop a conceptual and technological demonstrator of generation of inertial fusion energy. Its main aim is to...
XRL have great potential to extend current optical laser applications to shorter space and timescales, while probing much deeper into the core of matter. X-ray time-resolved imaging of biological samples, nanolithography, or laboratory astrophysics are typical examples of applications that are just starting to be explored. However, the use of XRL...
High-order harmonic generation (HHG) is a strongly nonlinear process in which femtosecond (1 fs = 10-15 s) laser pulses are disturbed by a medium, e.g. gas, in such a way so that very high-order harmonics of fs laser wavelength are created. Typically, the harmonics orders could as big as 27th and higher. In physical explanation the phenomenon...
Besides the development of XRL itself, our group is also involved in several application projects using these extremely bright radiation sources. Most notably, we develop the technique of soft X-ray interferometry/holography of surfaces, based on advanced Lloyd’s mirror interferometer configuration and having nanometric resolution capability....
The soft X-ray lasers (XRL) we develop use as the active medium a column of laser-produced plasma. The pump device is a high-power infrared laser at PALS delivering a sequence of two pulses onto the surface of typically a metallic slab target. While the first pulse vaporizes the target and creates a weakly ionised plasma, the second pulse keeps up...
We have experimentally demonstrated the evidence of structural surface modifications of poly(methyl methacrylate) (PMMA) caused by simultaneous action of extreme ultraviolet (XUV) (similar to 21 nm) and visible-near infrared (visible-NIR) (820/410 nm) ultrashort pulses. Although the fluence of each individual beam was far below the surface...
We have realized a single-shot micropatterning of an organic polymer by ablation with demagnifying projection using a Ne-like Zn 21.2 nm soft x-ray laser. A nickel mesh with a period of 100 um was imaged, 10x demagnified and imprinted on poly(methyl methacrylate) via direct ablation. The quality of the ablated microstructure was found to be mainly...
The rate of laser ablation at irradiances of 2 x 1014 W/cm2 of solid iron has been measured using the transmission of a neonlike zinc x-ray laser at 21.2 nm through thin iron targets.
Copyright © 2008, Fyzikální ústav AV ČR, v. v. i.
