12-14 April 2023
Australia/Melbourne timezone

High-Field Physics Related to LWFA on Dual-Beam Ultrafast High-Power Lasers

12 Apr 2023, 15:00
20m
Talk (remote) WG4: Innovative accelerator techniques Room 2 (Conferece Room)

Speaker

Wenchao Yan (Shanghai Jiao Tong University)

Description

Electron–photon scattering is one of the most fundamental mechanisms in electrodynamics, underlying laboratory and astrophysical sources of high-energy X-rays. After a century of studies, it is only recently that sufficiently high electromagnetic field strengths have been available to experimentally study the nonlinear regime of the scattering in the laboratory. This can act as a new generation of accelerator-based hard X/γ-ray sources driven exclusively by laser light. One ultrahigh intense CPA laser pulses will act as two means: first used to accelerate electrons by laser driven wake field (LWFA) to hundreds MeV, and second, from split beam or LWFA-leftover energy reflected by plasma mirror, to collide on the electron for the generation of X/γ-rays. Such all-laser-driven X/γ source have recently been demonstrated to be energetic, tunable, narrow/broad in bandwidth, short pulsed and well collimated. Such characteristics, especially from a compact source, are highly advantageous for numerous advanced X-ray applications. Moreover, the scattering interaction can act a test bed for high-field QED study. Also, preliminary plan of laser wake-field accelerator and radiation source in two high-power laser facilities, 0.5PW in SJTU and 2.5PW in TDLI will be presented, both of the lasers include two independently compressed two beamlines.

Speaker's Name Wenchao Yan
Speaker's Title Prof.
Speaker's Gender Man

Primary author

Wenchao Yan (Shanghai Jiao Tong University)

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