Turbulence is ubiquitous in the universe and in fluid dynamics. It influences a wide range of high energy density systems, from inertial confinement fusion to astrophysical-object evolution. Understanding this phenomenon is crucial, however, due to limitations in experimental and numerical methods in plasma systems, a complete description of the turbulent spectrum is still lacking. Here, we present the measurement of a turbulent spectrum down to micron scale in a laser-plasma experiment. We use an experimental platform, which couples a high power optical laser, an x-ray free-electron laser and a lithium fluoride crystal, to study the dynamics of a plasma flow with micrometric resolution (~1μm) over a large field of view (>1 mm2). After the evolution of a Rayleigh–Taylor unstable system, we obtain spectra, which are overall consistent with existing turbulent theory, but present unexpected features. This work paves the way towards a better understanding of numerous systems, as it allows the direct comparison of experimental results, theory and numerical simulations.

Micron-scale phenomena observed in a turbulent laser-produced plasma / Rigon, G.; Albertazzi, B.; Pikuz, T.; Mabey, P.; Bouffetier, V.; Ozaki, N.; Vinci, T.; Barbato, F.; Falize, E.; Inubushi, Y.; Kamimura, N.; Katagiri, K.; Makarov, S.; Manuel, M. J. -E.; Miyanishi, K.; Pikuz, S.; Poujade, O.; Sueda, K.; Togashi, T.; Umeda, Y.; Yabashi, M.; Yabuuchi, T.; Gregori, G.; Kodama, R.; Casner, A.; Koenig, M.. - In: NATURE COMMUNICATIONS. - ISSN 2041-1723. - 12:1(2021). [10.1038/s41467-021-22891-w]

Micron-scale phenomena observed in a turbulent laser-produced plasma

Barbato, F.;
2021

Abstract

Turbulence is ubiquitous in the universe and in fluid dynamics. It influences a wide range of high energy density systems, from inertial confinement fusion to astrophysical-object evolution. Understanding this phenomenon is crucial, however, due to limitations in experimental and numerical methods in plasma systems, a complete description of the turbulent spectrum is still lacking. Here, we present the measurement of a turbulent spectrum down to micron scale in a laser-plasma experiment. We use an experimental platform, which couples a high power optical laser, an x-ray free-electron laser and a lithium fluoride crystal, to study the dynamics of a plasma flow with micrometric resolution (~1μm) over a large field of view (>1 mm2). After the evolution of a Rayleigh–Taylor unstable system, we obtain spectra, which are overall consistent with existing turbulent theory, but present unexpected features. This work paves the way towards a better understanding of numerous systems, as it allows the direct comparison of experimental results, theory and numerical simulations.
Fluid dynamics, Imaging techniques, Laser-produced plasmas
01 Pubblicazione su rivista::01a Articolo in rivista
Micron-scale phenomena observed in a turbulent laser-produced plasma / Rigon, G.; Albertazzi, B.; Pikuz, T.; Mabey, P.; Bouffetier, V.; Ozaki, N.; Vinci, T.; Barbato, F.; Falize, E.; Inubushi, Y.; Kamimura, N.; Katagiri, K.; Makarov, S.; Manuel, M. J. -E.; Miyanishi, K.; Pikuz, S.; Poujade, O.; Sueda, K.; Togashi, T.; Umeda, Y.; Yabashi, M.; Yabuuchi, T.; Gregori, G.; Kodama, R.; Casner, A.; Koenig, M.. - In: NATURE COMMUNICATIONS. - ISSN 2041-1723. - 12:1(2021). [10.1038/s41467-021-22891-w]
File allegati a questo prodotto
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1636915
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 7
  • ???jsp.display-item.citation.isi??? 6
social impact