Gamma-ray flash in the interaction of a tightly focused single-cycle ultra-intense laser pulse with a solid target

Kód výsledku v IS VaVaI

RIV/68378271:_____/22:00556990 - isvavai.cz

Nalezeny alternativní kódy

RIV/68407700:21340/22:00355827

Výsledek na webu

https://doi.org/10.1017/S0022377821001318

DOI - Digital Object Identifier

10.1017/S0022377821001318

Jazyk výsledku

angličtina

Název v původním jazyce

Gamma-ray flash in the interaction of a tightly focused single-cycle ultra-intense laser pulse with a solid target

Popis výsledku v původním jazyce

We employ the λ3 regime where a near-single-cycle laser pulse is tightly focused, thus providing the highest possible intensity for the minimal energy at a certain laser power. The quantum electrodynamics processes in the course of the interaction of an ultra-intense laser with a solid target are studied via three-dimensional particle-in-cell simulations, revealing the generation of copious γ -photons and electron–positron pairs. A parametric study of the laser polarisation, target thickness and electron number density shows that a radially polarised laser provides the optimal regime for γ -photon generation. By varying the laser power in the range of 1 to 300 PW we find the scaling of the laser to γ -photon energy conversion efficiency. The laser-generated γ -photon interaction with a high-Z target is further studied using Monte Carlo simulations revealing further electron–positron pair generation and radioactive nuclide creation.

Název v anglickém jazyce

Gamma-ray flash in the interaction of a tightly focused single-cycle ultra-intense laser pulse with a solid target

Popis výsledku anglicky

We employ the λ3 regime where a near-single-cycle laser pulse is tightly focused, thus providing the highest possible intensity for the minimal energy at a certain laser power. The quantum electrodynamics processes in the course of the interaction of an ultra-intense laser with a solid target are studied via three-dimensional particle-in-cell simulations, revealing the generation of copious γ -photons and electron–positron pairs. A parametric study of the laser polarisation, target thickness and electron number density shows that a radially polarised laser provides the optimal regime for γ -photon generation. By varying the laser power in the range of 1 to 300 PW we find the scaling of the laser to γ -photon energy conversion efficiency. The laser-generated γ -photon interaction with a high-Z target is further studied using Monte Carlo simulations revealing further electron–positron pair generation and radioactive nuclide creation.

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

EF15_003/0000449: High Field Initiative (Výzkum velmi intenzivních polí)

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Journal of Plasma Physics

ISSN

0022-3778

e-ISSN

1469-7807

Svazek periodika

88

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

28

Strana od-do

905880104

Kód UT WoS článku

000744121700001

EID výsledku v databázi Scopus

2-s2.0-85124028767