Simulations of femtosecond laser pulse interaction with spray target

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F14%3A00218262" target="_blank" >RIV/68407700:21340/14:00218262 - isvavai.cz</a>

Výsledek na webu

<a href="http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=9187242" target="_blank" >http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=9187242</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1017/S0263034614000032" target="_blank" >10.1017/S0263034614000032</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Simulations of femtosecond laser pulse interaction with spray target

Popis výsledku v původním jazyce

Laser interactions with spray targets (clouds of submicron droplets) are studied here via numerical simulations using two- dimensional particle-in-cell codes. Our simulations demonstrate an efficient absorption of laser pulse energy inside the spray. Theenergy absorption efficiency depends on the inter-droplet distance, size of the cloud of droplets, and laser pulse intensity, as well as on the pre-evaporation of droplets due to laser pulse pedestal. We investigate in detail proton acceleration from the spray. Energy spectra of protons in various acceleration directions vary significantly depending on the density profile of the plasma created from the droplets and on laser intensity. The spray target can be alternative of foil targets for high intensity high repetition ultrahigh contrast femtosecond lasers. However, at intensities >10^21 W/cm2, the efficiency of laser absorption and ion acceleration from the droplets drops significantly in contrast to foils.

Název v anglickém jazyce

Simulations of femtosecond laser pulse interaction with spray target

Popis výsledku anglicky

Laser interactions with spray targets (clouds of submicron droplets) are studied here via numerical simulations using two- dimensional particle-in-cell codes. Our simulations demonstrate an efficient absorption of laser pulse energy inside the spray. Theenergy absorption efficiency depends on the inter-droplet distance, size of the cloud of droplets, and laser pulse intensity, as well as on the pre-evaporation of droplets due to laser pulse pedestal. We investigate in detail proton acceleration from the spray. Energy spectra of protons in various acceleration directions vary significantly depending on the density profile of the plasma created from the droplets and on laser intensity. The spray target can be alternative of foil targets for high intensity high repetition ultrahigh contrast femtosecond lasers. However, at intensities >10^21 W/cm2, the efficiency of laser absorption and ion acceleration from the droplets drops significantly in contrast to foils.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BL - Fyzika plasmatu a výboje v plynech

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Laser and Particle Beams

ISSN

0263-0346

e-ISSN

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Svazek periodika

32

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

145-156

Kód UT WoS článku

000332688800018

EID výsledku v databázi Scopus

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