We discovered a simple regime where a near-critical plasma irradiated by a laser of
experimentally available intensity can self-organize to produce positrons and accelerate …

Creation of electrons and positrons from light alone is a basic prediction of quantum
electrodynamics, but yet to be observed. Our simulations show that the required conditions …

Experimental measurements using the OMEGA EP laser facility demonstrated direct laser
acceleration (DLA) of electron beams to (505±75) MeV with (140±30) nC of charge from a …

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

We show that a single laser pulse, traveling through a dense plasma, produces a population
of MeV photons of sufficient density to generate a large number of electron–positron pairs …

We use 3D simulations to demonstrate that high-quality ultrarelativistic electron bunches can
be generated on reflection of a twisted laser beam off a plasma mirror. The unique topology …

Interaction of an ultrastrong short laser pulse with nonprepolarized near-critical density
plasma is investigated in an ultrarelativistic regime, with an emphasis on the radiative spin …

Relativistic transparency enables volumetric laser interaction with overdense plasmas and
direct laser acceleration of electrons to relativistic velocities. The dense electron current …

In this study, the femtosecond laser ablation of optically clear adhesives (OCAs) was carried
out to machine a smooth groove for optoelectronic module and chip integrated …

In the few-cycle pulse regime of laser-cluster interaction (intensity> 10 16 W/cm 2,
wavelength> 780 nm), laser absorption is mostly collisionless and may happen via …