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Guided Mode Evolution and Ionization Injection in Meter-Scale Multi-GeV Laser Wakefield Accelerators

https://doi.org/10.1103/PhysRevLett.133.045002

Shrock, J. E. ; Rockafellow, E. ; Miao, B. ; Le, M. ; Hollinger, R. C. ; Wang, S. ; Gonsalves, A. J. ; Picksley, A. ; Rocca, J. J. ; Milchberg, H. M. ( July 2024 , Physical Review Letters)
Meter-scale plasma waveguides for multi-GeV laser wakefield acceleration

https://doi.org/10.1063/5.0097214

Shrock, J. E. ; Miao, B. ; Feder, L. ; Milchberg, H. M. ( July 2022 , Physics of Plasmas)

We present results from two new techniques for the generation of meter-scale, low density (∼1017 cm−3 on axis) plasma waveguides, the “two-Bessel” technique, and the “self-waveguiding” technique. Plasma waveguides of this density and length range are needed for demonstration of a ∼10 GeV laser wakefield accelerator module, key for future staging for a ∼TeV lepton collider. Both techniques require the use of high quality ultrashort pulse Bessel beams to efficiently and uniformly ionize hydrogen gas in meter-scale supersonic gas jets via optical field ionization. We review these two techniques, describe our meter-scale gas jets, and present a new method for correction of optical aberrations in Bessel beams. Finally, we briefly present results from recent experiments employing one of our techniques, demonstrating quasi-monoenergetic acceleration of ∼5 GeV electron bunches in 20 cm long, low density plasma waveguides.
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Multi-GeV Electron Bunches from an All-Optical Laser Wakefield Accelerator

https://doi.org/10.1103/PhysRevX.12.031038

Miao, B. ; Shrock, J. E. ; Feder, L. ; Hollinger, R. C. ; Morrison, J. ; Nedbailo, R. ; Picksley, A. ; Song, H. ; Wang, S. ; Rocca, J. J. ; et al ( September 2022 , Physical Review X)

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Self-waveguiding of relativistic laser pulses in neutral gas channels

https://doi.org/10.1103/PhysRevResearch.2.043173

Feder, L. ; Miao, B. ; Shrock, J. E. ; Goffin, A. ; Milchberg, H. M. ( November 2020 , Physical Review Research)
null (Ed.)
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Optical Guiding in Meter-Scale Plasma Waveguides

https://doi.org/10.1103/PhysRevLett.125.074801

Miao, B. ; Feder, L. ; Shrock, J. E. ; Goffin, A. ; Milchberg, H. M. ( August 2020 , Physical Review Letters)
null (Ed.)
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