Two-color nonlinear resonances in betatron oscillations of laser accelerated relativistic electrons

0546723 - FZÚ 2022 RIV US eng J - Journal Article
Lamač, Marcel - Chaulagain, Uddhab P. - Jurkovič, Matěj - Nejdl, Jaroslav - Bulanov, Sergey V.
Two-color nonlinear resonances in betatron oscillations of laser accelerated relativistic electrons.
Physical Review Research. Roč. 3, č. 3 (2021), č. článku 033088. E-ISSN 2643-1564
R&D Projects: GA MŠMT EF16_019/0000789; GA MŠMT EF15_003/0000449; GA MŠMT LM2015065
Grant - others:OP VVV - ADONIS(XE) CZ.02.1.01/0.0/0.0/16_019/0000789; OP VVV - HiFi(XE) CZ.02.1.01/0.0/0.0/15_003/0000449
Research Infrastructure: ELI Beamlines III - 90141
Institutional support: RVO:68378271
Keywords : generation
OECD category: Fluids and plasma physics (including surface physics)
Method of publishing: Open access

X-ray radiation from laser wakefield accelerated (LWFA) electrons provides a collimated broadband femtosecond x-ray source with micron-scale source size. However, the photon flux is still inadequate for a range of applications. By interaction of LWFA relativistic electrons with the second and the third harmonic of the laser driving the wakefield, we report more than an order of magnitude enhancement of photon flux emitted by the electrons undergoing betatron oscillations resonant with the harmonics. This phenomenon is demonstrated with analytical and numerical models, as well as particle-in-cell simulations.
Permanent Link: http://hdl.handle.net/11104/0323242