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Research subjects at department 91

ELI - Extreme Light Infrastructure

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 build and operate a multipurpose facility capable of producing the intensity of laser radiation more than hundred times larger than that generated in any other laboratory worldwide.  The whole text »

HiPER – European High Power Laser Energy research Facility

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 imitate the physical conditions such as at the centre of the sun or stars and to start (using the powerful laser) the inertial fusion, which is a necessary condition for the release and subsequent use of large amounts of energy.

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Multimillijoule zinc soft X-ray laser at 21.2 nm

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 generating further plasma and heats it to an appropriate temperature to produce the required ionisation and achieve population inversion.

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Development of high repetition rate X-ray lasers

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 in these novel applications is seriously limited by the parameters of the laser driver creating population inversion. Fortunately, plasma-based XRL are now being perfected to the point that they can become truly tabletop.  The whole text »

Multidisciplinary applications of the zinc X-ray laser

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. Another application being prepared is generation of volumetrically heated superdense plasmas by a focused X-ray laser beam.  The whole text »

Double Lloyd’s mirror

Double Lloyd’s mirror is wavefront-splitting interferometer, working in XUV region.

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