Speaker
Thomas Fennel
(Max-Born-Institute, Berlin and University of Rostock)
Description
When compared to atoms and solids, the collective and correlated electron dynamics in finite systems under intense light fields can be substantially modified, enhanced and controlled by plasmonic near-fields [1]. Localized near-fields result from electronic polarization and charge separation, may unfold on femtosecond or even attosecond time scales, and can have various implications on the strong-field physics of nanostructures, nanoparticles, and clusters [2]. Examples include waveform-controlled electron acceleration through resonant plasmonic field amplification [3], directionally controlled surface backscattering via field propagation effects [4], or near-field induced attosecond streaking [5].
In this talk, three new aspects of controlling near-field induced strong-field dynamics with bichromatic laser fields will be discussed. The first scenario addresses the plasmon enhanced forward acceleration in metal clusters [3]. The second case is the directional control achieved through spectrally selective field amplification at isolated nanospheres. The third scenario concerns two-color control of electron backscattering from metallic nanotips.
References:
[1] T. Fennel et al., Rev. Mod. Phys. 82, 1793 (2010)
[2] M. F. Ciappina et al., Rep. Prog. Phys. 80, 054401 (2017)
[3] J. Passig et al., Nat. Commun. 8, 1181 (2017)
[4] F. Süßmann et al., Nat. Commun. 6, 7944 (2015)
[5] Seiffert et al., Nat. Phys. 13, 766 (2017)
Email of corresponding author: fennel@mbi-berlin.de / thomas.fennel@uni-rostock.de
Primary author
Thomas Fennel
(Max-Born-Institute, Berlin and University of Rostock)
