Zobrazeno 1 - 10
of 1 057
pro vyhledávání: '"D A Jaroszynski"'
Autor:
M. J. V. Streeter, Y. Ma, B. Kettle, S. J. D. Dann, E. Gerstmayr, F. Albert, N. Bourgeois, S. Cipiccia, J. M. Cole, I. Gallardo González, A. E. Hussein, D. A. Jaroszynski, K. Falk, K. Krushelnick, N. Lemos, N. C. Lopes, C. Lumsdon, O. Lundh, S. P. D. Mangles, Z. Najmudin, P. P. Rajeev, R. Sandberg, M. Shahzad, M. Smid, R. Spesyvtsev, D. R. Symes, G. Vieux, A. G. R. Thomas
Publikováno v:
Physical Review Accelerators and Beams, Vol 25, Iss 10, p 101302 (2022)
We report on experimental measurements of energy transfer efficiencies in a GeV-class laser wakefield accelerator. Both the transfer of energy from the laser to the plasma wakefield and from the plasma to the accelerated electron beam was diagnosed b
Externí odkaz:
https://doaj.org/article/a4841cb57f2d4a0dafc47d2acbe910f9
Autor:
A Maitrallain, E Brunetti, M J V Streeter, B Kettle, R Spesyvtsev, G Vieux, M Shahzad, B Ersfeld, S R Yoffe, A Kornaszewski, O Finlay, Y Ma, F Albert, N Bourgeois, S J D Dann, N Lemos, S Cipiccia, J M Cole, I G González, L Willingale, A Higginbotham, A E Hussein, M Šmid, K Falk, K Krushelnick, N C Lopes, E Gerstmayr, C Lumsdon, O Lundh, S P D Mangles, Z Najmudin, P P Rajeev, D R Symes, A G R Thomas, D A Jaroszynski
Publikováno v:
New Journal of Physics, Vol 24, Iss 1, p 013017 (2022)
Laser wakefield accelerators commonly produce on-axis, low-divergence, high-energy electron beams. However, a high charge, annular shaped beam can be trapped outside the bubble and accelerated to high energies. Here we present a parametric study on t
Externí odkaz:
https://doaj.org/article/73efba51f7cd478abdc2f40829d178b9
Autor:
G. Vieux, S. Cipiccia, D. W. Grant, N. Lemos, P. Grant, C. Ciocarlan, B. Ersfeld, M. S. Hur, P. Lepipas, G. G. Manahan, G. Raj, D. Reboredo Gil, A. Subiel, G. H. Welsh, S. M. Wiggins, S. R. Yoffe, J. P. Farmer, C. Aniculaesei, E. Brunetti, X. Yang, R. Heathcote, G. Nersisyan, C. L. S. Lewis, A. Pukhov, J. M. Dias, D. A. Jaroszynski
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
Abstract Raman amplification arising from the excitation of a density echelon in plasma could lead to amplifiers that significantly exceed current power limits of conventional laser media. Here we show that 1–100 J pump pulses can amplify picojoule
Externí odkaz:
https://doaj.org/article/8bafac19af0a4de0b33796618c061a3e
Autor:
Lu-Le Yu, Yao Zhao, Lie-Jia Qian, Min Chen, Su-Ming Weng, Zheng-Ming Sheng, D. A. Jaroszynski, W. B. Mori, Jie Zhang
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-7 (2016)
Optical modulators are easily damaged by high-intensity pulses. Here, the authors propose a method for directly modulating high-power laser light across a broad spectral range using a wave generated in a sub-millimetre-scale underdense plasma by a se
Externí odkaz:
https://doaj.org/article/c152b9b313de4e4aadb45cacae4331f2
Autor:
S. R. Yoffe, R. Lehe, B. Ersfeld, E. Brunetti, G. Vieux, A. Noble, B. Eliasson, M. S. Hur, J.-L. Vay, D. A. Jaroszynski
Publikováno v:
Physical Review Research, Vol 2, Iss 1, p 013227 (2020)
Current high-power laser amplifiers use chirped-pulse amplification to prevent damage to their solid-state components caused by intense electromagnetic fields. To increase laser power further requires ever larger and more expensive devices. The Raman
Externí odkaz:
https://doaj.org/article/b2c448f5f0674cf29548000209489a7f
Autor:
Q Zhao, S M Weng, Z M Sheng, M Chen, G B Zhang, W B Mori, B Hidding, D A Jaroszynski, J Zhang
Publikováno v:
New Journal of Physics, Vol 20, Iss 6, p 063031 (2018)
The effect of an external transverse magnetic field on ionization injection of electrons in a laser wakefield accelerator (LWFA) is investigated by theoretical analysis and particle-in-cell simulations. On application of a few tens of Tesla magnetic
Externí odkaz:
https://doaj.org/article/d69c05377f134f278361ce8f6f126f30
Autor:
G. G. Manahan, A. Deng, O. Karger, Y. Xi, A. Knetsch, M. Litos, G. Wittig, T. Heinemann, J. Smith, Z. M. Sheng, D. A. Jaroszynski, G. Andonian, D. L. Bruhwiler, J. B. Rosenzweig, B. Hidding
Publikováno v:
Physical Review Accelerators and Beams, Vol 19, Iss 1, p 011303 (2016)
Dark current can spoil witness bunch beam quality and acceleration efficiency in particle beam-driven plasma wakefield accelerators. In advanced schemes, hot spots generated by the drive beam or the wakefield can release electrons from higher ionizat
Externí odkaz:
https://doaj.org/article/4e7614bd55cb4915a8a7447ef0641bf2
Autor:
G. Wittig, O. Karger, A. Knetsch, Y. Xi, A. Deng, J. B. Rosenzweig, D. L. Bruhwiler, J. Smith, G. G. Manahan, Z.-M. Sheng, D. A. Jaroszynski, B. Hidding
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 18, Iss 8, p 081304 (2015)
A novel, flexible method of witness electron bunch generation in plasma wakefield accelerators is described. A quasistationary plasma region is ignited by a focused laser pulse prior to the arrival of the plasma wave. This localized, shapeable optica
Externí odkaz:
https://doaj.org/article/081fe613fa6745e5a91d0c0512c32d87
Autor:
M R Islam, E Brunetti, R P Shanks, B Ersfeld, R C Issac, S Cipiccia, M P Anania, G H Welsh, S M Wiggins, A Noble, R A Cairns, G Raj, D A Jaroszynski
Publikováno v:
New Journal of Physics, Vol 17, Iss 9, p 093033 (2015)
The laser–plasma wakefield accelerator is a compact source of high brightness, ultra-short duration electron bunches. Self-injection occurs when electrons from the background plasma gain sufficient momentum at the back of the bubble-shaped accelera
Externí odkaz:
https://doaj.org/article/fb5067c419784051b32970ce8055aaf6
Publikováno v:
New Journal of Physics, Vol 17, Iss 10, p 103026 (2015)
Raman backscattering (RBS) in plasma is the basis of plasma-based amplifiers and is important in laser-driven fusion experiments. We show that saturation can arise from nonlinearities due to coupling between the fundamental and harmonic plasma wave m
Externí odkaz:
https://doaj.org/article/09516ffdcebb41f79cd95d8ec4bce9bf