Events in Physics
Matthew Edwards (Princeton): Plasma Sources of Intense Ultrafast Radiation
Location: PS017a
Current high-power lasers can supply coherent pulses with petawatt peak powers and intensities sufficient to drive antimatter jets, produce bright x-ray radiation, and accelerate electrons and ions to relativistic velocities. The goal of our research is to develop and apply plasma-based sources of intense ultrafast (sub-picosecond) radiation across the electromagnetic spectrum. Here we discuss the creation of intense attosecond pulses using relativistic high harmonic generation from overdense plasma surfaces and plasma-based laser amplification using stimulated Raman and Brillouin scattering. Relativistic high harmonic generation offers a path to attosecond pulses of unprecedented intensity, allowing the study of non-linear optics in the attosecond regime. Raman and Brillouin amplification of laser pulses in plasma avoid the damage-threshold limits of current solid-state systems, potentially producing orders-of-magnitude improvements in peak power. Recent advances in understanding and improving the efficiency of these processes will be covered, with a particular emphasis on the use of particle-in-cell simulations.
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Due to the implementation of a new UKRI funding system (TFS) there will be a fixed quarterly deadlines for some grants which would previously have been on open calls, this is to allow necessary system amendments and updates.
The first deadline after implementation will be 28th September 2023 and applies to those calls listed below:
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