Analysis of radial and longitudinal force of plasma wakefield generated by a chirped pulse laser

Ghasemi, Leila; Afhami, Saeedeh; Eslami, Esmaeil

doi:10.1063/1.4928904

Cited by 8 publications

(5 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For instance, Rezaei-Pandari et al found that a properly chirped laser pulse could excite stronger laser wakefield in an inhomogeneous plasma, which could result in higher electron energy [25]. Ghasemi et al proved that the nonlinearly chirped laser pulse can generate stronger longitudinal wakefield and focusing force than that of the linearly chirped laser [26]. Zhang et al showed that a chirped laser pulse can greatly enhance the wakefield amplitude and potential regardless of chirp sign, which would affect the ionization-induced injection process [27].…”

Section: Introductionmentioning

confidence: 99%

Beam quality improvement of ionization injected electrons by using chirped pulse in wakefield acceleration

Cui

Zhang

et al. 2019

Plasma Phys. Control. Fusion

View full text Add to dashboard Cite

Ionization-induced electron injection in a chirped laser pulse driven wakefield acceleration is investigated through particle-in-cell simulations. We find that negative (positive) chirp can longitudinally stretch (compress) laser pulse, and the wakefield amplitude can be enhanced regardless of the chirp sign. On the other hand, the rapid compression of a positively chirped pulse leads to the decrease of the wakefield potential difference, which breaks the ionization injection condition and consequent injection truncation occurs. The effective injection only lasts for a few hundred micrometers and the detailed injection length is determined by the chirp parameter. As a result, a highly tunable quasi-monoenergetic electron beam with narrow energy spread, hundreds of MeV central energy and tens of pC charge can be stably produced by this scheme.

show abstract

Section: Introductionmentioning

confidence: 99%

Beam quality improvement of ionization injected electrons by using chirped pulse in wakefield acceleration

Cui

Zhang

et al. 2019

Plasma Phys. Control. Fusion

View full text Add to dashboard Cite

show abstract

“…The interaction of relativistic CLPs with underdense plasma can be described by the coupled equations under the Coulomb gauge [40,41,[48][49][50][51] :…”

Section: Mode and Schemementioning

confidence: 99%

Laser chirp controlled relativistic few-cycle mid-infrared pulse generation

Li,

Zhang,

Zhao

et al. 2023

High Pow Laser Sci Eng

View full text Add to dashboard Cite

Relativistic few-cycle mid-infrared (mid-IR) pulses are unique tools for strong-field physics and ultrafast science, but are difficult to generate with traditional nonlinear optical methods. Here, we propose a scheme to generate such pulses with high efficiency via plasma-based frequency modulation with a negatively chirped laser pulse (NCLP). The NCLP is rapidly compressed longitudinally due to dispersion and plasma etching, and its central frequency is downshifted via photon deceleration due to the enhanced laser intensity and plasma density modulations. Simulation results show that few-cycle mid-IR pulses with the maximum center wavelength of 7.9 µm and pulse intensity of a MIR = 2.9 can be generated under a proper chirp parameter. Further, the maximum energy conversion efficiency can approach 5.0%. Such a relativistic mid-IR source is promising for a wide range of applications.

show abstract

“…where, n 0 =n(ξ=0) is the plasma density of the initial position, n(ξ) describes the inhomogeneity of the plasma density, which is a nonlinear function of ξ, and the specific expression will be given in the next section. Thus, the response of the plasma to the laser pulse can be described by the equation of motion in three directions [35,36]:…”

Section: Model and Analysismentioning

confidence: 99%

“…It is shown that the maximum amplitude of the wakefield induced by nonlinearly chirped pulse is three times longer than that by linearly chirped pulse. And the effect of various types of chirped pulse on wakefield generation by a rationally analytical model is given [36].…”

Section: Introductionmentioning

confidence: 99%

Wakefield generation by chirped super-Gaussian laser pulse in inhomogeneous plasma

Yao¹,

Cheng²,

Tang³

et al. 2018

Plasma Sci. Technol.

View full text Add to dashboard Cite

We study the effect of nonlinearly chirped super-Gaussian (SG) laser pulse on wakefield generation in an inhomogeneous plasma. The different types of nonlinearly chirped pulse are employed, and different kinds of inhomogeneous plasma density are used. The maximum wakefield amplitude as the function of nonlinearly chirped laser pulse and inhomogeneous plasma density in parameter space are obtained. Moreover, the dependence of the maximum wakefield amplitude on the SG laser pulse index is discussed. This shows that a larger wakefield can be obtained when the chirped pulse and inhomogeneous density are in the critical regions. Wakefield generation can be controlled by adjusting the chirped SG pulse and inhomogeneous plasma density parameters. That is, we provide an efficient way for the controlled generation of the wakefield.

show abstract

Analysis of radial and longitudinal force of plasma wakefield generated by a chirped pulse laser

Cited by 8 publications

References 29 publications

Beam quality improvement of ionization injected electrons by using chirped pulse in wakefield acceleration

Beam quality improvement of ionization injected electrons by using chirped pulse in wakefield acceleration

Laser chirp controlled relativistic few-cycle mid-infrared pulse generation

Wakefield generation by chirped super-Gaussian laser pulse in inhomogeneous plasma

Contact Info

Product

Resources

About