Postdoc position modeling and numerical Computing of Intense Terahertz Photonic Sources, CELIA, Bordeaux University, France
When petawatt femtosecond laser pulses interact with a solid target at intensity larger than1020 W/cm2, the electrons accelerated by the laser ponderomotive force become relativistic and generate a broad spectrum of intense radiations, ranging from X/gamma photons down to Giga-/Tera-Hertz waves through various nonlinear conversion mechanisms driven by particle acceleration. Subsequent plasma expansion and ion acceleration are expected to produce intense bursts of electromagnetic waves as well.The present post-doc position aims at exploring theoretically and numerically the conversion processes leading to giant electromagnetic pulses that belong to the terahertz frequency domain by means of analytical modeling and particle-in-cell simulations.