The dynamics of charged particles in electromagnetic fields is an essential component of
understanding the most extreme environments in our Universe. In electromagnetic fields of …

The petawatt (PW) laser has experienced a rapid development in the past two decades, and
tens of giant facilities have been constructed worldwide. After realizing 10–100 PW, it seems …

High-intensity lasers are critical for the exploration of strong field quantum electrodynamics.
We report here a demonstration of laser intensity exceeding 10^23W/cm^2 with the CoReLS …

Here, we report the recent progress on the front end developed for the 100 PW-class laser
facility. Using 3 stages of optical parametric chirped-pulse amplification (OPCPA) based on …

Since the invention of chirped pulse amplification, which was recognized by a Nobel Prize in
physics in 2018, there has been a continuing increase in available laser intensity. Combined …

Generation of energetic electron-positron pairs using multi-petawatt (PW) lasers has recently
attracted increasing interest. However, some previous laser-driven positron beams have …

The eXawatt Center for Extreme Light Studies project aimed to create a large scientific
infrastructure based on lasers with giant peak power. The project relies on the significant …

The investigation of spatio-temporal couplings (STCs) of broadband light beams is
becoming a key topic for the optimization as well as applications of ultrashort laser systems …

Relativistic positron beams are required for fundamental research in nonlinear strong field
QED, plasma physics, and laboratory astrophysics. Positrons are difficult to create and …

Vacuum birefringence produces a differential phase between orthogonally polarized
components of a weak electromagnetic probe in the presence of a strong electromagnetic …