Electron Acceleration by Relativistic Surface Plasmons in Laser-Grating Interaction

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F16%3A00301040" target="_blank" >RIV/68407700:21340/16:00301040 - isvavai.cz</a>

Výsledek na webu

<a href="http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.116.015001" target="_blank" >http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.116.015001</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevLett.116.015001" target="_blank" >10.1103/PhysRevLett.116.015001</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Electron Acceleration by Relativistic Surface Plasmons in Laser-Grating Interaction

Popis výsledku v původním jazyce

The generation of energetic electron bunches by the interaction of a short, ultraintense (I > 10(19) W/cm(2)) laser pulse with "grating" targets has been investigated in a regime of ultrahigh pulse-to-prepulse contrast (10(12)). For incidence angles close to the resonant condition for surface plasmon excitation, a strong electron emission was observed within a narrow cone along the target surface, with energy spectra peaking at 5-8 MeV and total charge of similar to 100 pC. Both the energy and the number of emitted electrons were strongly enhanced with respect to simple flat targets. The experimental data are closely reproduced by three-dimensional particle-in-cell simulations, which provide evidence for the generation of relativistic surface plasmons and for their role in driving the acceleration process. Besides the possible applications of the scheme as a compact, ultrashort source of MeV electrons, these results are a step forward in the development of high-field plasmonics.

Název v anglickém jazyce

Electron Acceleration by Relativistic Surface Plasmons in Laser-Grating Interaction

Popis výsledku anglicky

The generation of energetic electron bunches by the interaction of a short, ultraintense (I > 10(19) W/cm(2)) laser pulse with "grating" targets has been investigated in a regime of ultrahigh pulse-to-prepulse contrast (10(12)). For incidence angles close to the resonant condition for surface plasmon excitation, a strong electron emission was observed within a narrow cone along the target surface, with energy spectra peaking at 5-8 MeV and total charge of similar to 100 pC. Both the energy and the number of emitted electrons were strongly enhanced with respect to simple flat targets. The experimental data are closely reproduced by three-dimensional particle-in-cell simulations, which provide evidence for the generation of relativistic surface plasmons and for their role in driving the acceleration process. Besides the possible applications of the scheme as a compact, ultrashort source of MeV electrons, these results are a step forward in the development of high-field plasmonics.

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

<a href="/cs/project/GA15-02964S" target="_blank" >GA15-02964S: Interakce vysoce intenzivního laserového impulzu se speciálně navrženými terči jako zdroj energetických částic a záření</a><br>

Návaznosti

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

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Physical Review Letters

ISSN

0031-9007

e-ISSN

—

Svazek periodika

116

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

—

Kód UT WoS článku

000367678600006

EID výsledku v databázi Scopus

2-s2.0-84954439305