Brilliant gamma-ray beam and electron-positron pair production by enhanced attosecond pulses

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F18%3A00503454" target="_blank" >RIV/61389021:_____/18:00503454 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/18:00501537 RIV/68407700:21340/18:00329095

Výsledek na webu

<a href="https://www.nature.com/articles/s42005-018-0095-3" target="_blank" >https://www.nature.com/articles/s42005-018-0095-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s42005-018-0095-3" target="_blank" >10.1038/s42005-018-0095-3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Brilliant gamma-ray beam and electron-positron pair production by enhanced attosecond pulses

Popis výsledku v původním jazyce

Electron-positron pair production via Breit-Wheeler process requires laser intensities approaching 10(24) W cm(-2) due to the small cross-section. Here, we propose a mechanism for brilliant gamma-ray emission and dense GeV pairs creation accompanied with high-harmonic generation by using plasma mirror and an ultra short pulse with the intensity of 3 x 10(23) W cm(-2). The laser is reflected by the solid surface after propagating tens of microns in a near-critical density plasma and breaks into short wave packets. The intensity of the reflected high order harmonic field is enhanced by the focusing and compression effects from the deformed oscillating mirror. The radiation trapped electrons emit gamma-photons while colliding with the reflected attosecond pulses. The peak intensity of the gamma-ray reaches 0.74 PW with the brilliance of 2 x 10(24) s(-1) mm(-2) mrad(-2) (0.1%BW)(-1) (at 58 MeV). A GeV positron beam is obtained with density of 4 x 10(21) cm(-3) and a particle number of 5.6 x 10(9).

Název v anglickém jazyce

Brilliant gamma-ray beam and electron-positron pair production by enhanced attosecond pulses

Popis výsledku anglicky

Electron-positron pair production via Breit-Wheeler process requires laser intensities approaching 10(24) W cm(-2) due to the small cross-section. Here, we propose a mechanism for brilliant gamma-ray emission and dense GeV pairs creation accompanied with high-harmonic generation by using plasma mirror and an ultra short pulse with the intensity of 3 x 10(23) W cm(-2). The laser is reflected by the solid surface after propagating tens of microns in a near-critical density plasma and breaks into short wave packets. The intensity of the reflected high order harmonic field is enhanced by the focusing and compression effects from the deformed oscillating mirror. The radiation trapped electrons emit gamma-photons while colliding with the reflected attosecond pulses. The peak intensity of the gamma-ray reaches 0.74 PW with the brilliance of 2 x 10(24) s(-1) mm(-2) mrad(-2) (0.1%BW)(-1) (at 58 MeV). A GeV positron beam is obtained with density of 4 x 10(21) cm(-3) and a particle number of 5.6 x 10(9).

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

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

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

COMMUNICATIONS PHYSICS

ISSN

2399-3650

e-ISSN

—

Svazek periodika

1

Číslo periodika v rámci svazku

10. 12. 2018

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

1-9

Kód UT WoS článku

000452676600001

EID výsledku v databázi Scopus

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