Top arrow pointing up

Resources

Resources

Vacuum laser acceleration of super-ponderomotive electrons using relativistic transparency injection

Jan 11, 2022. Publications

Abstract

Intense lasers can accelerate electrons to very high energy over a short distance. Such compact accelerators have several potential applications including fast ignition, high energy physics, and radiography. Among the various schemes of laser-based electron acceleration, vacuum laser acceleration has the merits of super-high acceleration gradient and great simplicity. Yet its realization has been difficult because injecting free electrons into the fast- oscillating laser field is not trivial. Here we demonstrate free-electron injection and sub- sequent vacuum laser acceleration of electrons up to 20 MeV using the relativistic trans- parency effect. When a high-contrast intense laser drives a thin solid foil, electrons from the dense opaque plasma are first accelerated to near-light speed by the standing laser wave in front of the solid foil and subsequently injected into the transmitted laser field as the opaque plasma becomes relativistically transparent. It is possible to further optimize the electron injection/acceleration by manipulating the laser polarization, incident angle, and temporal pulse shaping. Our result also sheds light on the fundamental relativistic transparency pro- cess, crucial for producing secondary particle and light sources. 

DOI: https://doi.org/10.1038/s41467-021-27691-w

More From Publications

Dec 9, 2021    Publications

Emittance preserving thin film plasma mirrors for GeV scale laser plasma accelerators

A. Zingale, N. Czapla, D. M. Nasir, S. K. Barber, J. H. Bin, A. J. Gonsalves, F. Isono, J. van Tilborg, S. Steinke,...

Read more

Dec 3, 2021    Publications

Towards High-Repetition-Rate Fast Neutron Sources Using Novel Enabling Technologies

F. Treffert, C. B. Curry, T. Ditmire, G. D. Glenn, H. J. Quevedo, M. Roth, C. Schoenwaelder, M. Zimmer, S. H....

Read more

Dec 2, 2021    Publications

Experimental observation of polarization-resolved nonlinear Thomson scattering of elliptically polarized light

C. Fruhling, J. Wang, D. Umstadter, C. Schulzke, M. Romero, M. Ware, and J. Peatross. Phys. Rev. A 104, 053519, (2021).

Read more

Nov 29, 2021    Publications

Solid-Density Ion Temperature from Redshifted and Double-Peaked Stark Line Shapes

B. F. Kraus, Lan Gao, K. W. Hill, M. Bitter, P. C. Efthimion, T. A. Gomez, A. Moreau, R. Hollinger, Shoujun Wang,...

Read more

Sep 17, 2021    Publications

Relativistically transparent magnetic filaments: scaling laws, initial results and prospects for strong-field QED studies

H. G. Rinderknecht, T. Wang, A. Laso Garcia, G. Bruhaug, M. S. Wei, H. J. Quevedo, T. Ditmire, J. Williams, A. Haid,...

Read more

Aug 5, 2021    Publications

Electron energization during merging of self-magnetized, high-beta, laser-produced plasmas

G. Fiksel, W. Fox, M. J. Rosenberg, D. B. Schaeffer, J. Matteucci  and A. Bhattacharjee, J. Plasma Phys., 87(4),...

Read more