Conference 11777 > Paper 11777-502
Paper 11777-502

ELI ALPS: the next generation of attosecond sources

On demand | Presented live 19 April 2021

Abstract

The Extreme Light Infrastructure – Attosecond Light Pulse Source (ELI-ALPS), the Hungarian pillar of ELI, is the first of its kind that operates by the principle of a user facility, supporting laser based fundamental and applied researches in physical, biological, chemical, medical and materials sciences at extreme short time scales. This goal is realized by the combination of specialized primary lasers which drive nonlinear frequency conversion and acceleration processes in more than twelve different secondary sources. Any light pulse source can act as a research tool by itself or, with femtosecond synchronization, in combination with any other of the sources. Thus a uniquely broad spectral range of the highest power and shortest light pulses becomes available for the study of dynamic processes on the attosecond time scale in atoms, molecules, condensed matter and plasmas. The ground-breaking laser systems together with the subsequent outstanding secondary sources generate the highest possible peak power at the highest possible repetition rate in a spectral range from the E-UV through visible and near infrared to THz. The facility – besides the regular scientific staff - will provide accessible research infrastructure for the international scientific community user groups from all around the world. The attosecond secondary sources are based on advanced techniques of Higher-order Harmonic Generation (HHG). Other secondary sources provide particle beams for plasma physics and radiobiology. A set of state-of-the-art endstations will be accessible to those users who do not have access or do not wish to bring along their own equipment. Step by step the lasers are now commissioned, trialed and handed over for user operation. References S. Kuhn et al., “The ELI-ALPS facility: the next generation of attosecond sources.”, Topical Review, Journal of Physics B, 50 (2017) 132002

Presenter

Katalin G. Varju
Univ. of Szeged (Hungary)
Dr Katalin Varjú received her PhD in physics from the University of Szeged in 2002. Since 1999 she has worked at the University of Szeged, where she holds an associate professorship. She was a visiting scientist at Lund University in Sweden (2003-2005) in the Marie Curie Programme. She habilitated at the University of Szeged in 2015. Dr. Varjú has been working for the ELI programme from the beginning. She was active in the preparatory stages of the ELI proposals and co-edited the first Scientific Case for ELI-ALPS in 2011. She is currently the Science Director of the Szeged based ELI ALPS research institute, responsible for the implementation of the research infrastructure. She has published 59 papers in refereed journals, has been cited 1526 times, her h-index is 19. Her main research interests are in optical and atomic physics: concerning the propagation of femtosecond laser pulses, high-order harmonic generation and attosecond pulse (train) generation.
Presenter/Author
Katalin G. Varju
Univ. of Szeged (Hungary)