• Corpus ID: 202542417

Controlling sub-cycle electron dynamics with plasmonic bichromatic counter-rotating circularly polarised fields

@article{Ansari2019ControllingSE,
  title={Controlling sub-cycle electron dynamics with plasmonic bichromatic counter-rotating circularly polarised fields},
  author={Irfana N. Ansari and Cornelia Hofmann and Lukas Medivsauskas and Gopal Dixit},
  journal={arXiv: Atomic Physics},
  year={2019}
}

• Irfana N. Ansari, C. Hofmann, +1 author G. Dixit
• Published 10 September 2019
• Physics
• arXiv: Atomic Physics

The use of bi-chromatic counter-rotating laser field is known to generate high-order harmonics with non-zero ellipticity. By combining such a laser pulse with a plasmonic field, we propose a way to influence the sub-cycle dynamics of the high-harmonic generation process. Using a numerical solution of the time-dependent Schr{\"o}dinger equation combined with classical trajectory Monte Carlo simulations, we show that the change of the direction and the strength of the plasmonic field selectively enhances or suppresses certain recombining electron trajectories. This in turn modifies the ellipticity of the emitted attosecond pulses.