Dino A. Jaroszynski

TL;DR: This work investigates Raman amplification of short duration seed pulses with different chirp rates using a chirped pump pulse in a preformed plasma waveguide and identifies electron trapping and wavebreaking as the main saturation mechanisms, which lead to spectral broadening and gain saturation.

TL;DR: In this paper, a flexible method of electron bunch generation in plasma wakefield accelerators is described, where a quasistationary plasma region is ignited by a focused laser pulse prior to the arrival of the plasma wave.

TL;DR: The excitation of plasma waves over a length of up to 8 cm is demonstrated using laser guiding of intense laser pulses through hydrogen-filled glass capillary tubes and the spectral redshift-measured as a function of filling pressure, capillary tube length, and incident laser energy is in excellent agreement with simulation results.

TL;DR: This work presents an ultrafast, plasma-based optical modulator, which can directly modulate high-power lasers with intensity up to 1016 W cm−2 to produce an extremely broad spectrum with a fractional bandwidth over 100%, extending to the mid-infrared regime in the low-frequency side.

TL;DR: In this paper, the lifetime measurements of low-energy states in the thorium nuclei 229Th and 229Pa were obtained using a direct electronic fast-timing technique, the mirror symmetric centroid difference method.