Generation of intense magnetic wakes by relativistic laser pulses in plasma

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2FCZ______%3A_____%2F23%3AN0000005" target="_blank" >RIV/CZ______:_____/23:N0000005 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/23:00363517 RIV/00216208:11320/23:10467399

Výsledek na webu

<a href="https://doi.org/10.1038/s41598-023-28753-3" target="_blank" >https://doi.org/10.1038/s41598-023-28753-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41598-023-28753-3" target="_blank" >10.1038/s41598-023-28753-3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Generation of intense magnetic wakes by relativistic laser pulses in plasma

Popis výsledku v původním jazyce

The emergence of petawatt lasers focused to relativistic intensities enables all-optical laboratory generation of intense magnetic fields in plasmas, which are of great interest due to their ubiquity in astrophysical phenomena. In this work, we study generation of spatially extended and long-lived intense magnetic fields. We show that such magnetic fields, scaling up to the gigagauss range, can be generated by interaction of petawatt laser pulses with relativistically underdense plasma. With three-dimensional particle-in-cell simulations we investigate generation of magnetic fields with strengths up to 10(10) G and perform a large multi-parametric study of magnetic field in dependence on dimensionless laser amplitude a 0 and normalized plasma density n e / n c. The numerical results yield scaling laws that closely follow derived analytical result B alpha root a(0)n(e)/n(c), and further show a close match with previous experimental works. Furthermore, we show in three-dimensional geometry that the decay of the magnetic wake is governed by current filament bending instability, which develops similarly to von Karman vortex street in its nonlinear stage.

Název v anglickém jazyce

Generation of intense magnetic wakes by relativistic laser pulses in plasma

Popis výsledku anglicky

The emergence of petawatt lasers focused to relativistic intensities enables all-optical laboratory generation of intense magnetic fields in plasmas, which are of great interest due to their ubiquity in astrophysical phenomena. In this work, we study generation of spatially extended and long-lived intense magnetic fields. We show that such magnetic fields, scaling up to the gigagauss range, can be generated by interaction of petawatt laser pulses with relativistically underdense plasma. With three-dimensional particle-in-cell simulations we investigate generation of magnetic fields with strengths up to 10(10) G and perform a large multi-parametric study of magnetic field in dependence on dimensionless laser amplitude a 0 and normalized plasma density n e / n c. The numerical results yield scaling laws that closely follow derived analytical result B alpha root a(0)n(e)/n(c), and further show a close match with previous experimental works. Furthermore, we show in three-dimensional geometry that the decay of the magnetic wake is governed by current filament bending instability, which develops similarly to von Karman vortex street in its nonlinear stage.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

—

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Scientific Reports

ISSN

2045-2322

e-ISSN

—

Svazek periodika

13

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

10

Strana od-do

1701

Kód UT WoS článku

000984271700069

EID výsledku v databázi Scopus

2-s2.0-85147110696