Investigation of the Way of Phase Synchronization of a Self-Injected Bunch and an Accelerating Wakefield in Solid-State Plasma

The electron acceleration, in a laser wakefield accelerator, controlled through plasma density inhomogeneity is studied on a basis of 2.5-dimensional particle-in-cell simulation. The acceleration requires a concordance of the density scale length and shift of the accelerated electron bunch relative...

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Main Authors: Vasyl I. Maslov, Denys S. Bondar, Ivan N. Onishchenko
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Photonics
Subjects:
Online Access:https://www.mdpi.com/2304-6732/9/3/174
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author Vasyl I. Maslov
Denys S. Bondar
Ivan N. Onishchenko
author_facet Vasyl I. Maslov
Denys S. Bondar
Ivan N. Onishchenko
author_sort Vasyl I. Maslov
collection DOAJ
description The electron acceleration, in a laser wakefield accelerator, controlled through plasma density inhomogeneity is studied on a basis of 2.5-dimensional particle-in-cell simulation. The acceleration requires a concordance of the density scale length and shift of the accelerated electron bunch relative to wake bubble during electron acceleration. This paper considers the excitation of a wakefield in plasma with a density equal to the density of free electrons in metals, solid-state plasma (the original idea of Prof. T. Tajima), in the context of studying the wakefield process. As is known in the wake process, as the wake bubble moves through the plasma, the self-injected electron bunch shifts along the wake bubble. Then, the self-injected bunch falls into the phase of deceleration of the wake wave. In this paper, support of the acceleration process by maintaining the position of the self-injected electron bunch using an inhomogeneous plasma is proposed. It is confirmed that the method of maintaining phase synchronization proposed in the article by using a nonuniform plasma leads to an increase in the accelerating gradient and energy of the accelerated electron bunch in comparison with the case of self-injection and acceleration in a homogeneous plasma.
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spelling doaj.art-8faf93c8b477464ca382efb4ac77318a2023-11-30T21:59:14ZengMDPI AGPhotonics2304-67322022-03-019317410.3390/photonics9030174Investigation of the Way of Phase Synchronization of a Self-Injected Bunch and an Accelerating Wakefield in Solid-State PlasmaVasyl I. Maslov0Denys S. Bondar1Ivan N. Onishchenko2National Science Centre Kharkov Institute of Physics and Technology, 61108 Kharkiv, UkraineNational Science Centre Kharkov Institute of Physics and Technology, 61108 Kharkiv, UkraineNational Science Centre Kharkov Institute of Physics and Technology, 61108 Kharkiv, UkraineThe electron acceleration, in a laser wakefield accelerator, controlled through plasma density inhomogeneity is studied on a basis of 2.5-dimensional particle-in-cell simulation. The acceleration requires a concordance of the density scale length and shift of the accelerated electron bunch relative to wake bubble during electron acceleration. This paper considers the excitation of a wakefield in plasma with a density equal to the density of free electrons in metals, solid-state plasma (the original idea of Prof. T. Tajima), in the context of studying the wakefield process. As is known in the wake process, as the wake bubble moves through the plasma, the self-injected electron bunch shifts along the wake bubble. Then, the self-injected bunch falls into the phase of deceleration of the wake wave. In this paper, support of the acceleration process by maintaining the position of the self-injected electron bunch using an inhomogeneous plasma is proposed. It is confirmed that the method of maintaining phase synchronization proposed in the article by using a nonuniform plasma leads to an increase in the accelerating gradient and energy of the accelerated electron bunch in comparison with the case of self-injection and acceleration in a homogeneous plasma.https://www.mdpi.com/2304-6732/9/3/174laserwakefieldinhomogeneous plasmaaccelerationhigh energy
spellingShingle Vasyl I. Maslov
Denys S. Bondar
Ivan N. Onishchenko
Investigation of the Way of Phase Synchronization of a Self-Injected Bunch and an Accelerating Wakefield in Solid-State Plasma
Photonics
laser
wakefield
inhomogeneous plasma
acceleration
high energy
title Investigation of the Way of Phase Synchronization of a Self-Injected Bunch and an Accelerating Wakefield in Solid-State Plasma
title_full Investigation of the Way of Phase Synchronization of a Self-Injected Bunch and an Accelerating Wakefield in Solid-State Plasma
title_fullStr Investigation of the Way of Phase Synchronization of a Self-Injected Bunch and an Accelerating Wakefield in Solid-State Plasma
title_full_unstemmed Investigation of the Way of Phase Synchronization of a Self-Injected Bunch and an Accelerating Wakefield in Solid-State Plasma
title_short Investigation of the Way of Phase Synchronization of a Self-Injected Bunch and an Accelerating Wakefield in Solid-State Plasma
title_sort investigation of the way of phase synchronization of a self injected bunch and an accelerating wakefield in solid state plasma
topic laser
wakefield
inhomogeneous plasma
acceleration
high energy
url https://www.mdpi.com/2304-6732/9/3/174
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AT denyssbondar investigationofthewayofphasesynchronizationofaselfinjectedbunchandanacceleratingwakefieldinsolidstateplasma
AT ivannonishchenko investigationofthewayofphasesynchronizationofaselfinjectedbunchandanacceleratingwakefieldinsolidstateplasma