High order mode structure of intense light fields generated via a laser-driven relativistic plasma aperture.

ABSTRACT: The spatio-temporal and polarisation properties of intense light is important in wide-ranging topics at the forefront of extreme light-matter interactions, including ultrafast laser-driven particle acceleration, attosecond pulse generation, plasma photonics, high-field physics and laboratory astrophysics. Here, we experimentally demonstrate modifications to the polarisation and temporal properties of intense light measured at the rear of an ultrathin target foil irradiated by a relativistically intense laser pulse. The changes are shown to result from a superposition of coherent radiation, generated by a directly accelerated bipolar electron distribution, and the light transmitted due to the onset of relativistic self-induced transparency. Simulations show that the generated light has a hi

SUBMITTER: Duff MJ 

PROVIDER: S-EPMC6952361 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature