H. Ueda

TL;DR: To the knowledge this result represents the highest peak power pulses yet produced in any Ti:sapphire chirped-pulse amplification system.

TL;DR: Investigation of ionization dynamics of a Xe atom exposed to intense 800-nm pulses of 20-fs duration in the extensive intensity range from 10(13)-10(18) W/cm(2) proves suppression of nonsequential ionization towards higher intensity and few optical cycle regimes.

TL;DR: In this paper, the energy and charge state distributions of emitted ions and electrons using ultrafast 20-fs pulses were investigated for the interaction of intense laser fields with Xe clusters, and the mean and maximum ion energies as high as 0.1 and 2 MeV, respectively, were achieved when Xe cluster are irradiated by 500-fs pulse with negative chirp as an optimal condition under a laser peak intensity of 2x10{sup 17} W/cm{sup 2}.

TL;DR: In this article, the Boltzmann equation and a detailed collisional-radiative model are solved simultaneously as a function of time to model the time-integrated x-ray spectra of the transient plasma produced by a high intensity ultrafast laser source.

TL;DR: In this article, high-resolution K-shell spectra of a plasma created by superintense laser irradiation of micron-sized Ar clusters have been measured with an intensity above 1019 W/cm2 and a pulse duration of 30 fs.