Electron Beam Driven Generation of Frequency-Tunable Isolated Relativistic Subcycle Pulses
Journal article, 2019

We propose a novel scheme for frequency-tunable subcycle electromagnetic pulse generation. To this end a pump electron beam is injected into an electromagnetic seed pulse as the latter is reflected by a mirror. The electron beam is shown to be able to amplify the field of the seed pulse while upshifting its central frequency and reducing its number of cycles. We demonstrate the amplification by means of 1D and 2D particle-in-cell simulations. In order to explain and optimize the process, a model based on fluid theory is proposed. We estimate that using currently available electron beams and terahertz pulse sources, our scheme is able to produce millijoule-strong midinfrared subcycle pulses.


Illia Thiele

Chalmers, Physics, Subatomic and Plasma Physics

E. Siminos

University of Gothenburg

Tünde Fülöp

Chalmers, Physics, Subatomic and Plasma Physics

Physical Review Letters

0031-9007 (ISSN) 1079-7114 (eISSN)

Vol. 122 10 104803

Running away and radiating (PLASMA)

European Commission (Horizon 2020), 2015-10-01 -- 2020-09-30.

Subject Categories

Accelerator Physics and Instrumentation

Atom and Molecular Physics and Optics

Other Physics Topics


C3SE (Chalmers Centre for Computational Science and Engineering)





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5/6/2019 8