Short electron bunches generated by perpendicularly crossing laser pulses

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F19%3A00509544" target="_blank" >RIV/61389021:_____/19:00509544 - isvavai.cz</a>

Výsledek na webu

<a href="https://iopscience.iop.org/article/10.1088/1361-6587/ab2728" target="_blank" >https://iopscience.iop.org/article/10.1088/1361-6587/ab2728</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1361-6587/ab2728" target="_blank" >10.1088/1361-6587/ab2728</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Short electron bunches generated by perpendicularly crossing laser pulses

Popis výsledku v původním jazyce

Optical injection of electrons into a laser wakefield accelerator by colliding a strong drive laser pulse and an orthogonally propagating and perpendicularly polarized weaker injection pulse(-s) is investigated using 2D and 3D particle-in-cell simulations. Within this contribution, we will present recent results of improvement in the fundamental scheme with single injection pulse by its specific modifications. Low-intensity injection pulses can generate sub-femtosecond electron bunches. Introduction of a second injection pulse perpendicular to the plasma-wave-driving pulse leads to a decrease in emittance and increase in charge. Moreover, we suggest introducing the negatively chirped pulses to drive the accelerating plasma wave in the configurations with controlled injection. It is demonstrated that the negative chirp effectively suppresses the presence of the dark current which is generally difficult to control. Thus, it amends the electron bunch parameters considerably.

Název v anglickém jazyce

Short electron bunches generated by perpendicularly crossing laser pulses

Popis výsledku anglicky

Optical injection of electrons into a laser wakefield accelerator by colliding a strong drive laser pulse and an orthogonally propagating and perpendicularly polarized weaker injection pulse(-s) is investigated using 2D and 3D particle-in-cell simulations. Within this contribution, we will present recent results of improvement in the fundamental scheme with single injection pulse by its specific modifications. Low-intensity injection pulses can generate sub-femtosecond electron bunches. Introduction of a second injection pulse perpendicular to the plasma-wave-driving pulse leads to a decrease in emittance and increase in charge. Moreover, we suggest introducing the negatively chirped pulses to drive the accelerating plasma wave in the configurations with controlled injection. It is demonstrated that the negative chirp effectively suppresses the presence of the dark current which is generally difficult to control. Thus, it amends the electron bunch parameters considerably.

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

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Plasma Physics and Controlled Fusion

ISSN

0741-3335

e-ISSN

—

Svazek periodika

61

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

10

Strana od-do

085018

Kód UT WoS článku

000507472300008

EID výsledku v databázi Scopus

2-s2.0-85070651270