Relativistic electron beams driven by kHz single-cycle light pulses
Diego Guenot,Dominykas Gustas,Aline Vernier,B. Beaurepaire,Frederik Böhle,Maïmouna Bocoum,M. Lozano,Aurélie Jullien,Rodrigo Lopez-Martens,Agustin Lifschitz,Jérôme Faure +10 more
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In this paper, single-cycle laser pulses are used to drive high-quality MeV relativistic electron beams, thereby enabling kHz operation and dramatic downsizing of the laser system.Abstract:
Laser-plasma acceleration(1,2) is an emerging technique for accelerating electrons to high energies over very short distances. The accelerated electron bunches have femtosecond duration(3,4), making them particularly relevant for applications such as ultrafast imaging(5) or femtosecond X-ray generation(6,7). Current laser-plasma accelerators deliver 100 MeV (refs 8-10) to GeV (refs 11, 12) electrons using Joule-class laser systems that are relatively large in scale and have low repetition rates, with a few shots per second at best. Nevertheless, extending laser-plasma acceleration to higher repetition rates would be extremely useful for applications requiring lower electron energy. Here, we use single-cycle laser pulses to drive high-quality MeV relativistic electron beams, thereby enabling kHz operation and dramatic downsizing of the laser system. Numerical simulations indicate that the electron bunches are only similar to 1 fs long. We anticipate that the advent of these kHz femtosecond relativistic electron sources will pave the way to applications with wide impact, such as ultrafast electron diffraction in materials(13,14) with an unprecedented sub-10 fs resolution(15).read more
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Journal ArticleDOI
Dose rate assessment of spot-scanning very high energy electrons radiotherapy driven by laser plasma acceleration
TL;DR: In this article , the authors evaluate the dose rate delivery by spot-scanning VHEE beams produced by LPA and discuss the feasibility and beam specifications for FLASH-RT implementation.
Posted Content
Relativistic electron acceleration by mJ-class kHz lasers normally incident on liquid targets
Scott Feister,Drake R. Austin,John T. Morrison,Kyle Frische,Chris Orban,Gregory Ngirmang,Abraham Handler,Joseph Smith,Mark Schillaci,Jay A. LaVerne,Enam Chowdhury,Richard R. Freeman,William M. Roquemore +12 more
TL;DR: In this article, a 3 mJ laser interacting at normal incidence with a solid density, flowing-liquid target was used to measure the superponderomotive energy up to 3 MeV.
Proceedings ArticleDOI
Intuitive identification of optimal few-to single-cycle pulse post-compression dynamics in hollow-core fibers using dispersion-scan
J. San Román,E. Conejero Jarque,Francisco Silva,Rosa Romero,Warein Holgado,M. A. González-Galicia,Íñigo J. Sola,Helder Crespo +7 more
TL;DR: In this paper, a gas-filled hollow-core fiber (HCF) post-compression of amplified multi-cycle pulses is proposed, where chirped mirrors are normally employed for dispersion compensation.
Posted Content
Spatially homogeneous few-cycle compression of Yb lasers via all-solid-state free-space soliton management
Bingbing Zhu,Zongyuan Fu,Yudong Chen,Sainan Peng,Cheng Jin,Guangyu Fan,Sheng Zhang,Shunjia Wang,Hao Ru,Chuanshan Tian,Yihua Wang,Henry C. Kapteyn,Margaret M. Murnane,Zhensheng Tao +13 more
TL;DR: In this paper, the authors used all-solid-state free-space compressors to demonstrate compression of 170 fs pulses at a wavelength of 1030nm from a Yb:KGW laser to 9.2 fs with a highly spatially homogeneous mode.
Proceedings ArticleDOI
Wakefield Excited by Ultrashort Laser Pulses in Near-Critical Density Plasmas
TL;DR: In this paper, the properties of the wake wave generated by ultrashort pulse lasers in near-critical density plasmas are investigated and the results obtained may lead to enhancement of the quality of LWFA electron beams using kHz laser systems.
References
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Journal ArticleDOI
Laser Electron Accelerator
Toshiki Tajima,John M. Dawson +1 more
TL;DR: In this paper, an intense electromagnetic pulse can create a weak of plasma oscillations through the action of the nonlinear ponderomotive force, and electrons trapped in the wake can be accelerated to high energy.
Journal ArticleDOI
Physics of laser-driven plasma-based electron accelerators
TL;DR: In this paper, the basic physics of laser pulse evolution in underdense plasmas is also reviewed, including the propagation, self-focusing, and guiding of laser pulses in uniform density channels and with preformed density channels.
Journal ArticleDOI
A laser-plasma accelerator producing monoenergetic electron beams
Jérôme Faure,Y. Glinec,Alexander Pukhov,Sergey Kiselev,Sergey Gordienko,Erik Lefebvre,Jean-Philippe Rousseau,Frédéric Burgy,Victor Malka +8 more
TL;DR: It is demonstrated that this randomization of electrons in phase space can be suppressed and that the quality of the electron beams can be dramatically enhanced.
Journal ArticleDOI
High-quality electron beams from a laser wakefield accelerator using plasma-channel guiding
C. G. R. Geddes,C. G. R. Geddes,Cs. Toth,van J Jeroen Tilborg,van J Jeroen Tilborg,Eric Esarey,Carl Schroeder,David L. Bruhwiler,Chet Nieter,John R. Cary,Wim Leemans +10 more
TL;DR: A laser accelerator that produces electron beams with an energy spread of a few per cent, low emittance and increased energy (more than 109 electrons above 80 MeV) and opens the way for compact and tunable high-brightness sources of electrons and radiation.
Journal ArticleDOI
Monoenergetic beams of relativistic electrons from intense laser–plasma interactions
Stuart Mangles,C. D. Murphy,C. D. Murphy,Zulfikar Najmudin,Alexander Thomas,John Collier,A. E. Dangor,E. J. Divall,Peta Foster,J. G. Gallacher,C. J. Hooker,Dino A. Jaroszynski,A. J. Langley,Warren Mori,Peter Norreys,Frank Tsung,R. Viskup,B. Walton,Karl Krushelnick +18 more
TL;DR: High-resolution energy measurements of the electron beams produced from intense laser–plasma interactions are reported, showing that—under particular plasma conditions—it is possible to generate beams of relativistic electrons with low divergence and a small energy spread.