Proof-of-principle experiment for laser-driven acceleration of relativistic electrons in a semi-infinite vacuum
T. Plettner, R. L. Byer, E. Colby, B. Cowan, C. M. S. Sears, J. E. Spencer, and R. H. Siemann
Phys. Rev. ST Accel. Beams 8, 121301 (2005) - Published 13 December, 2005