Near-threshold electron injection in the laser-plasma wakefield accelerator leading to femtosecond bunches
Islam, M.R., 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, and D.A. Jaroszynski
