Limits on laser wakefield accelerators

Yedierler, Burak; Bilikmen, Sinan

doi:10.1063/1.1149698

Cited by 2 publications

(1 citation statement)

References 5 publications

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“…The natural diffraction of a laser pulse limits its focus distance within the Rayleigh length, which is a main shortcoming of laser wakefield acceleration (LWFA) [1][2][3] . In LWFA, strong wakefields can only be excited when the laser intensity is high enough.…”

Section: Introductionmentioning

confidence: 99%

Generation of a curved plasma channel from a discharged capillary for intense laser guiding

Zhu

et al. 2023

High Pow Laser Sci Eng

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Straight plasma channels are widely used to guide relativistic intense laser pulses over several Rayleigh lengths for laser wakefield acceleration. Recently, a curved plasma channel with gradually varied curvature was suggested to guide a fresh intense laser pulse and merge it into a straight channel for staged wakefield acceleration [Phys. Rev. Lett. 120, 154801 (2018)]. In this work, we report the generation of such a curved plasma channel from a discharged capillary. Both longitudinal and transverse density distributions of the plasma inside the channel were diagnosed by analyzing the discharging spectroscopy. Effects of the gas-filling mode, back pressure and discharging voltage on the plasma density distribution inside the specially designed capillary are studied. Experiments show that a longitudinally uniform and transversely parabolic plasma channel with a maximum channel depth of 47.5 µm and length of 3 cm can be produced, which is temporally stable enough for laser guiding. Using such a plasma channel, a laser pulse with duration of 30 fs has been successfully guided along the channel with the propagation direction bent by 10.4 • .

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Section: Introductionmentioning

confidence: 99%

Generation of a curved plasma channel from a discharged capillary for intense laser guiding

Zhu

et al. 2023

High Pow Laser Sci Eng

View full text Add to dashboard Cite

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Design, manufacturing, evaluation, and performance of a 3D-printed, custom-made nozzle for laser wakefield acceleration experiments

Andrianaki,

Grigoriadis,

Skoulakis

et al. 2023

Review of Scientific Instruments

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Laser WakeField Acceleration (LWFA) is extensively used as a high-energy electron source, with electrons achieving energies up to the GeV level. The produced electron beam characteristics depend strongly on the gas density profile. When the gaseous target is a gas jet, the gas density profile is affected by parameters, such as the nozzle geometry, the gas used, and the backing pressure applied to the gas valve. An electron source based on the LWFA mechanism has recently been developed at the Institute of Plasma Physics and Lasers. To improve controllability over the electron source, we developed a set of 3D-printed nozzles suitable for creating different gas density profiles according to the experimental necessities. Here, we present a study of the design, manufacturing, evaluation, and performance of a 3D-printed nozzle intended for LWFA experiments.

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Limits on laser wakefield accelerators

Cited by 2 publications

References 5 publications

Generation of a curved plasma channel from a discharged capillary for intense laser guiding

Generation of a curved plasma channel from a discharged capillary for intense laser guiding

Design, manufacturing, evaluation, and performance of a 3D-printed, custom-made nozzle for laser wakefield acceleration experiments

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