ECLIM2022

Session

Session 7

Not scheduled

Bruno Brunelli Hall (Frascati)

65. Electro-optical sensing of intense electromagnetic pulses in a multi-hundred joule laser facility

Massimiliano Sciscio

oral

Electromagnetic pulses (EMPs) generated by the interaction between energetic laser pulses and matter represent a hazard for the safe operation of laser-plasma experiments at high-power facilities and, at the same time, they promise interesting applications where intense (up to the MV/m) pulsed fields (with durations in the order of ns) are required. Therefore, their characterization and...

45. EMP measurements from MF to UHF at VEGA - a comparison of solid targets and gas targets in different interaction regimes

Dr Michael Ehret (CLPU)

oral

We present and compare experimental studies of electromagnetic pulses (EMP) produced at the high-power 30 fs lasers VEGA-2 with 200 TW and VEGA-3 with 1 PW. The seed space charge fields are triggered by the interaction of the laser pulses focused to relativistic intensities onto solid density and gas targets, at intensities ranging from several 1e19 W/cm2 to several 1e20 W/cm2. The detection...

36. High-power laser-plasma chemistry: laboratory astrophysics, astrochemistry and astrobiology

Libor Juha (Institute of Physics, Czech Academy of Sciences, Prague, Czech Republic)

Invited

A few years after the invention of lasers, it was found that focusing a pulsed laser beam into a gas causes dielectric breakdown of the gas in a consistent part of the converging beam. The process is called laser-induced dielectric breakdown (LIDB) while the phenomenon is usually called a laser spark. Although the physical nature of laser sparks is the subject of numerous reviews (results of...

64. Laboratory observation of C and O emission lines of White Dwarf H1504+65-like atmosphere model

Dr Dieter Hoffmann (Xi’An Jiaotong University, Xi’An, Shaanxi, P.R. China)

oral

H1504+65, a bare stellar nucleus, is an unusual white dwarf with a Carbon- and Oxygen-dominated
atmosphere. The composition cannot be explained by current stellar evolution models. The analysis
of the elemental abundance and the improvement of stellar atmospheric models depends heavily on
spectral measurements and accurate spectral data. We used soft x-ray emission from a laser...

75. Laser-matter interaction as an innovative source of intense radiofrequency-microwave fields

Fabrizio Consoli (ENEA)

oral

The interaction of high energy and high intensity laser pulses with matter produces a wide band of electromagnetic and particle radiation of remarkable intensity, easily overcoming several hundreds of megawatt. In particular, the electromagnetic content includes radiofrequency, microwave, infrared, visible, UV, X and γ components. The low frequency part of this emission constitutes the...

19. Observation of high-order frequency mixing in silicon in vacuum ultraviolet spectral region

Mr Pawan Suthar (Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic)

oral

Recent advances in high harmonic spectroscopy have enabled new methods to study ultrafast coherent dynamics of excited electron-hole wave packets in condensed matter. Electron-hole pairs are generated by the strong non-resonant light field via quantum tunneling and accelerated in the lattice to high energies. The electron and hole can eventually recombine leading to production of high-energy...