51 citations
5 papers
Seed source for plasma compression in the long wavelength infrared
Daniel F. Gordon, Patrick Grugan, Rotem Kupfer +5
Two color laser pulses are used to form an air plasma and generate broadband infrared radiation suitable as a seed for backward Raman amplification of CO2 laser pulses. Broadband r…
Demonstration of cascaded modulator-chicane micro-bunching of a relativistic electron beam
N. Sudar, P. Musumeci, I. Gadjev +9
We present results of an experiment showing the first successful demonstration of a cascaded micro-bunching scheme. Two modulator-chicane pre-bunchers arranged in series and a high…
Experimental characterization of electron beam driven wakefield modes in a dielectric woodpile Cartesian symmetric structure
P. D. Hoang, G. Andonian, I. Gadjev +8
The use of photonic structures in the terahertz (THz) spectral region may enable the essential characteristics of confinement, modal control, and electric field shielding for very…
High efficiency energy extraction from a relativistic electron beam in a strongly tapered undulator
Nicholas Sudar, Pietro Musumeci, Joe Duris +8
We present results of an experiment where, using a 200 GW CO2 laser seed, a 65 MeV electron beam was decelerated down to 35 MeV in a 54 cm long strongly tapered helical magnetic un…
Spectral modification of shock accelerated ions using hydrodynamically shaped gas target
O. Tresca, N. P. Dover, N. Cook +5
We report on reproducible shock acceleration from irradiation of a m CO laser on optically shaped H and He gas targets. A low energy laser prepulse ($I\lesssim10…