Oleg Chekhlov

TL;DR: Three-dimensional particle in cell simulations show that the intensity within the guided filament is amplified beyond its initial focused value to a normalized vector potential of a0>6, thus driving a highly nonlinear plasma wave.

TL;DR: What is believed to be the first large-aperture and high-energy optical parametric chirped pulse amplification system, based on a three-stage amplifier, shows 25% pump-to-signal conversion efficiency and amplification of the full 70 nm width of the seed spectrum.

TL;DR: The successful demonstration of a 100 J-level, diode pumped solid state laser based on cryogenic gas cooled, multi-slab ceramic Yb:YAG amplifier technology confirms the energy scalability of the diode pumping optical laser for experiments laser architecture.

TL;DR: An experimental study of the "coherent" contrast feature that frequently appears in petawatt(PW)-class laser pulses as an exponentially-rising pedestal within a few tens of picoseconds of the compressed pulse shows that scattering from the diffraction gratings in the stretcher is the principal source of this feature.

TL;DR: Agarwal et al. as discussed by the authors proposed the Astra Gemini project to extend the capabilities of Astra to Petawatt level by providing two 0.5 PW beams in a completely new radiation-shielded interaction area.