Speaker
Description
See the full abstract here:
http://ocs.ciemat.es/EPS2019ABS/pdf/P4.2016.pdf
Recently, Pisani et al. [1] have shown the possibility of generating nearly single-cycle (less than 4 fs) propagating surface plasmons at the micro-structured surface of a grating target by a laser pulse with wavefront rotation. Since the surface plasmon can be excited when the grating is irradiated at a specific angle, using wavefront rotation the resonance condition holds for only a fraction of the laser duration, resulting in a few-cycle surface plasmon. Extending this concept to the relativistic regime of interaction [2] is of interest for the development of surface plasmonenhanced ultrashort sources of high-energy electrons and XUV harmonic photons [3]. Using the open-source Particle-In-Cell (PIC) code SMILEI [4], we performed fully self-consistent kinetic simulations of the interaction of relativistically intense laser pulses with wavefront rotation, aiming at characterizing and optimizing the generation of extremely ultrashort high-field surface plasmons and the related acceleration of electron bunches.
References
[1] F. Pisani, L. Fedeli, and A. Macchi, ACS Photonics 5, 1068 (2018).
[2] M. Raynaud et al., Plasma Phys. Contr. F. 60, 014021 (2018), A. Macchi, Phys. Plasmas 25, 031906 (2018).
[3] L. Fedeli et al., Phys. Rev. Lett. 116, 015001 (2016); G. Cantono et al, Phys. Rev. Lett. 120, 264803 (2018).
[4] J. Derouillat et al., Comput. Phys. Commun. 222, 351 (2018)
