Shock-wave-based density down ramp for electron injection by Chunmei Wang, Ji Li, Jun Sun, Xisheng Luo

“…We demonstrate a sharp density transition for electron injection in laser wakefield acceleration through numerical study. This density transition is generated by a detached shock wave induced by a cylinder inserted into a supersonic helium gas flow. …”
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Control of autoresonant plasma beat-wave wakefield excitation by M. Luo, C. Riconda, I. Pusztai, A. Grassi, J. S. Wurtele, T. Fülöp

“…Autoresonant phase locking of the plasma wakefield to the beat frequency of two driving lasers offers advantages over conventional wakefield acceleration methods, since it requires less demanding laser parameters and is robust to variations in the target plasma density. …”
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Toward low energy spread in plasma accelerators in quasilinear regime by Xiangkun Li, Phu Anh Phi Nghiem, Alban Mosnier

“…In this paper, we address the energy spread and slice energy spread of an externally injected electron beam in plasma wakefield accelerators operating in the linear or quasilinear regime. …”
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Energy loss of a high-charge bunched electron beam in plasma: Analysis by N. Barov, J. B. Rosenzweig, M. C. Thompson, R. B. Yoder

“…There has been much recent experimental and theoretical interest in the blowout regime of plasma wakefield acceleration, which features ultrahigh accelerating fields, linear transverse focusing forces, and nonlinear plasma motion. …”
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Design study for a compact laser-driven source for medical x-ray fluorescence imaging by Theresa Brümmer, Alexander Debus, Richard Pausch, Jens Osterhoff, Florian Grüner

“…In combination with laser-wakefield acceleration (LWFA) such sources could provide the compactness needed for a future transition into clinical application. …”
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Beam-based commissioning of a novel X-band transverse deflection structure with variable polarization by P. González Caminal, F. Christie, R. D’Arcy, S. M. Jaster-Merz, R. Assmann, F. Burkart, B. Conrad, H. Dinter, M. Foese, J. Herrmann, M. Hoffmann, M. Hüning, R. Jonas, O. Krebs, S. Lederer, B. Marchetti, D. Marx, J. Mueller, J. Osterhoff, I. Peperkorn, M. Reukauff, H. Schlarb, S. Schreiber, G. Tews, T. Vinatier, M. Vogt, A. de Z. Wagner, S. Wesch, P. Craievich, M. Bopp, H.-H. Braun, A. Citterio, R. Fortunati, R. Ganter, T. Kleeb, F. Marcellini, M. Pedrozzi, E. Prat, S. Reiche, K. Rolli, R. Sieber, A. Grudiev, W. L. Millar, N. Catalan-Lasheras, G. McMonagle, S. Pitman, V. del Pozo Romano, K. T. Szypula, W. Wuensch

“…On the other, research and development of novel accelerator technologies such as beam-driven plasma-wakefield accelerators (PWFA) demand unprecedented capabilities to resolve the centroid offsets in the full transverse plane along the longitudinal bunch coordinate. …”
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GeV electron beams from a centimetre-scale accelerator by Leemans, W, Nagler, B, Gonsalves, A, Toth, C, Nakamura, K, Geddes, C, Esarey, E, Schroeder, C, Hooker, S

“…Radiofrequency-based accelerators are limited to relatively low accelerating fields (10-50 MV m-1), requiring tens to hundreds of metres to reach the multi-GeV beam energies needed to drive radiation sources, and many kilometres to generate particle energies of interest to high-energy physics. Laser-wakefield accelerators produce electric fields of the order 10-100 GV m-1 enabling compact devices. …”

Low-density hydrodynamic optical-field-ionized plasma channels generated with an axicon lens by Shalloo, R, Arran, C, Picksley, A, Von Boetticher, A, Corner, L, Holloway, J, Hine, G, Jonnerby, J, Milchberg, H, Thornton, C, Walczak, R, Hooker, S

“…Plasma channels of this type would seem to be well suited to multi-GeV laser wakefield accelerators operating in the quasi-linear regime.…”

Self-waveguiding of relativistic laser pulses in neutral gas channels by L. Feder, B. Miao, J. E. Shrock, A. Goffin, H. M. Milchberg

“…The method is well suited to laser wakefield acceleration and other applications requiring a long laser-matter interaction length.…”
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Efficiency versus instability in plasma accelerators by Valeri Lebedev, Alexey Burov, Sergei Nagaitsev

“…Plasma wakefield acceleration is one of the main technologies being developed for future high-energy colliders. …”
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Notable improvements on LWFA through precise laser wavefront tuning by Driss Oumbarek Espinos, Alexandre Rondepierre, Alexei Zhidkov, Naveen Pathak, Zhan Jin, Kai Huang, Nobuhiko Nakanii, Izuru Daito, Masaki Kando, Tomonao Hosokai

“…Abstract Laser wakefield acceleration (LWFA) continues to grow and awaken interest worldwide, especially as in various applications it approaches performance comparable to classical accelerators. …”
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Simulating laser pulse propagation and low-frequency wave emission in capillary plasma channel systems with a ponderomotive guiding center model by Peter Messmer, David L. Bruhwiler

“…Capillary channels of ≈3  cm in length and with plasma densities ≈10^{18}  cm^{-3} are a promising alternative to the much shorter, higher-density gas jets for GeV-scale laser wakefield acceleration of electrons. However, the large discrepancy between length scales of the plasma and the laser presents a major computational challenge for particle-in-cell (PIC) simulations. …”
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Terahertz-driven linear electron acceleration by Nanni, Emilio Alessandro, Hong, Kyung-Han, Ravi, Koustuban, Fallahi, Arya, Moriena, Gustavo, Dwayne Miller, R. J., Huang, Wenqian Ronny, Kaertner, Franz X.

“…However, laser-driven wakefield accelerators require intense femtosecond sources and direct laser-driven accelerators suffer from low bunch charge, sub-micron tolerances and sub-femtosecond timing requirements due to the short wavelength of operation. …”
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Numerical simulations of LWFA for the next generation of laser systems by Martins, S, Vieira, J, Fiúza, F, Fonseca, R, Huang, C, Lu, W, Mori, W, Trines, R, Norreys, P, Silva, L

“…The development of new laser systems based on OPCPA will push Laser Wakefield Accelerators (LWFA) to a qualitatively new energy range. …”

Self-waveguiding of relativistic laser pulses in neutral gas channels by Feder, L, Miao, B, Shrock, JE, Goffin, A, Milchberg, HM

“…The method is well suited to laser wakefield acceleration and other applications requiring a long laser-matter interaction length. …”

Single shot, nondestructive monitor for longitudinal subpicosecond bunch profile measurements with femtosecond resolution by I. V. Konoplev, G. Doucas, H. Harrison, A. J. Lancaster, H. Zhang

“…Accurate knowledge of the charged particle bunch longitudinal (time) profile is important in the context of wakefield accelerators, Compton Light sources, x-ray SASE FELs and THz radiation sources. …”
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Twin-bunch compression via velocity bunching in a traveling wave accelerator by Dan Wang, Hongze Zhang, QiLi Tian, Dong Wang, YingChao Du, Lixin Yan, Wenhui Huang, Wei Gai, Chuanxiang Tang

“…The twin-bunch technique has been a subject of intense investigation due to its application in diverse fields, such as two-color free-electron lasers and beam-driven wakefield acceleration. In this paper, we investigate the generation of twin bunches (tunable in both time and energy space) via a velocity bunching (VB) scheme in a traveling wave accelerator (TWA) by varying the TWA phase across a very large range for the first time. …”
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Collimated gamma beams with high peak flux driven by laser-accelerated electrons by Lulin Fan, Tongjun Xu, Shun Li, Zhangli Xu, Jiancai Xu, Jianqiang Zhu, Baifei Shen, Liangliang Ji

“…The 120 J 1 ps laser pulse drives self-modulated wakefield acceleration in a high-density gas jet and generates tens-of-MeV electrons with 26 nC and divergence as small as $1.51{}^{\circ}$ . …”
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High quality electron bunches for a multistage GeV accelerator with resonant multipulse ionization injection by Paolo Tomassini, Davide Terzani, Luca Labate, Guido Toci, Antoine Chance, Phu Anh Phi Nghiem, Leonida A. Gizzi

“…Laser wakefield acceleration of GeV electrons is becoming a mature technique, so that a reliable accelerator delivering stable beams to users communities can now be considered. …”
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Particle-in-cell simulation of plasma-based amplification using a moving window by S. R. Yoffe, R. Lehe, B. Ersfeld, E. Brunetti, G. Vieux, A. Noble, B. Eliasson, M. S. Hur, J.-L. Vay, D. A. Jaroszynski

“…The methods may also be extended to investigate Brillouin scattering, and for the development of laser wakefield accelerators. Efficient, compact, low-cost amplifiers would have widespread applications in academia and industry.…”
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