Sep 24 – 30, 2017
La Biodola, Isola d'Elba
Europe/Rome timezone

Laser-driven charged particle beam structures in the relativistic transparency regime

Sep 27, 2017, 11:30 AM
SML, Sala Maria Luisa, Hotel Hermitage

SML, Sala Maria Luisa, Hotel Hermitage

talk Invited Plenary Talk Plenary 6


Dr Martin King (University of Strathclyde)


The ability to control the collective plasma behaviour during the interaction of intense laser light is fundamental to the development of relativistic optics as well as laser-driven particle and radiation sources. Here we show that for an ultra-thin (nanometre-scale) foil target interacting with an intense laser pulse, the resultant accelerated electron and proton beam structures can be changed by varying the polarisation of the incoming laser. We demonstrate, that due to a combination of plasma expansion and heating, a finite ‘relativistic plasma aperture’ can be formed within the previously overdense plasma, allowing the laser to propagate and diffract [1]. The produced near-field diffraction pattern at the rear of the target, defined by the laser polarisation, can induce transverse electron current structures which, through strong charge-separation-induced electrostatic fields, can be mapped into the resultant proton beam [2]. [1] B. Gonzalez-Izquierdo, et al., Nat. Phys. 12, 505–512 (2016) [2] B. Gonzalez-Izquierdo, et al., Nat. Comms. 7, 12891 (2016)

Primary author

Dr Martin King (University of Strathclyde)

Presentation materials