Generation of Tunable 10-mJ-Level Terahertz Pulses through Nonlinear Plasma Wakefield Modulation

2021 ◽  
Vol 15 (4) ◽  
Author(s):  
Hanqi Feng ◽  
Zheng Zhou ◽  
Yipeng Wu ◽  
Zhangfeng Gao ◽  
Yifan Liang ◽  
...  
Keyword(s):  
Nonlinear Plasma ◽  
Terahertz Pulses ◽  
Plasma Wakefield

scholarly journals Excitation of strongly nonlinear plasma wakefield by electron bunches

2021 ◽  
Vol 63 (8) ◽  
pp. 085004
Author(s):  
A A Golovanov ◽  
I Yu Kostyukov ◽  
L Reichwein ◽  
J Thomas ◽  
A Pukhov
Keyword(s):  
Nonlinear Plasma ◽  
Strongly Nonlinear ◽  
Electron Bunches ◽  
Plasma Wakefield

Generation of high-power terahertz pulses by tilted-pulse-front excitation and their application possibilities

2008 ◽  
Vol 25 (7) ◽  
pp. B6 ◽  
Author(s):  
János Hebling ◽  
Ka-Lo Yeh ◽  
Matthias C. Hoffmann ◽  
Balázs Bartal ◽  
Keith A. Nelson
Keyword(s):  
High Power ◽  
Pulse Front ◽  
Terahertz Pulses

scholarly journals Radial density profile and stability of capillary discharge plasma waveguides of lengths up to 40 cm

2021 ◽  
Vol 9 ◽  
Author(s):  
M. Turner ◽  
A. J. Gonsalves ◽  
S. S. Bulanov ◽  
C. Benedetti ◽  
N. A. Bobrova ◽  
...  
Keyword(s):  
Laser Pulse ◽  
Electron Density ◽  
Density Profile ◽  
Pulse Propagation ◽  
Spot Size ◽  
Capillary Discharge ◽  
Electron Density Profile ◽  
Plasma Waveguide ◽  
Wakefield Acceleration ◽  
Plasma Wakefield

Abstract We measured the parameter reproducibility and radial electron density profile of capillary discharge waveguides with diameters of 650 $\mathrm{\mu} \mathrm{m}$ to 2 mm and lengths of 9 to 40 cm. To the best of the authors’ knowledge, 40 cm is the longest discharge capillary plasma waveguide to date. This length is important for $\ge$ 10 GeV electron energy gain in a single laser-driven plasma wakefield acceleration stage. Evaluation of waveguide parameter variations showed that their focusing strength was stable and reproducible to $<0.2$ % and their average on-axis plasma electron density to $<1$ %. These variations explain only a small fraction of laser-driven plasma wakefield acceleration electron bunch variations observed in experiments to date. Measurements of laser pulse centroid oscillations revealed that the radial channel profile rises faster than parabolic and is in excellent agreement with magnetohydrodynamic simulation results. We show that the effects of non-parabolic contributions on Gaussian pulse propagation were negligible when the pulse was approximately matched to the channel. However, they affected pulse propagation for a non-matched configuration in which the waveguide was used as a plasma telescope to change the focused laser pulse spot size.

scholarly journals Enantioselective orientation of chiral molecules induced by terahertz pulses with twisted polarization

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Ilia Tutunnikov ◽  
Long Xu ◽  
Robert W. Field ◽  
Keith A. Nelson ◽  
Yehiam Prior ◽  
...  
Keyword(s):  
Chiral Molecules ◽  
Terahertz Pulses

scholarly journals Hot spots and dark current in advanced plasma wakefield accelerators

2016 ◽  
Vol 19 (1) ◽  
Author(s):  
G. G. Manahan ◽  
A. Deng ◽  
O. Karger ◽  
Y. Xi ◽  
A. Knetsch ◽  
...  
Keyword(s):  
Hot Spots ◽  
Dark Current ◽  
Plasma Wakefield Accelerators ◽  
Plasma Wakefield ◽  
Wakefield Accelerators
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