BAQIS Quantum Science Forum 113: Femtosecond-Terawatt Hard X Ray Pulse Generation with Chirped Pulse Amplification on a Free Electron Laser

2023/12/01

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Date and Time:  4-Dec-2023  10am 


Speaker: Haoyuan Li ,post-doctoral researcher, Stanford University


Host: Li You ( Tsinghua Univ. & BAQIS)

 

Title: Femtosecond-Terawatt Hard X Ray Pulse Generation with Chirped Pulse Amplification on a Free Electron Laser


Venue: Room 526



Abstract: 


Advances of high intensity lasers have opened the field of strong field physics and led to a broad range of technological applications. Recent x-ray laser sources and optics development makes it possible to obtain extremely high intensity and brightness at x-ray wavelengths. In this Letter, we present a system design that implements chirped pulse amplification for hard x-ray free electron lasers. Numerical modeling with realistic experimental parameters shows that near-transform-limit single-femtosecond hard x-ray laser pulses with peak power exceeding 1 TW and brightness exceeding 4×〖10〗^35 s^(-1) mm^(-2) mrad^(-2) (0.1% bandwidth)^(-1) can be consistently generated. Realization of such beam qualities is essential for establishing systematic and quantitative understanding of strong field x-ray physics and nonlinear x-ray optics phenomena.




About the Speaker:


Haoyuan Li is a post-doctoral researcher from Stanford University working with Professor Matthias Ihme on the application of advanced X-ray techniques to supercritical fluid systems. His research includes picosecond X-ray photon correlation spectroscopy, hard X-ray non-linear optics, hard X-ray quantum optics and phase transition dynamics in glassy state and liquid state.