B08 – Electron transport in nanostructures controlled by phase-locked single-cycle light pulses
Funding period: 01/2016 – 12/2019
Principal investigators: Alfred Leitenstorfer, Daniele Brida (since 07/2018 Université du Luxembourg)
Scientific staff: Matthias Falk, Pascal Gumbsheimer, Vanessa Knittel, Markus Ludwig, Tobias Rybka, Patrick Storz
The project aims at coherent control of charge currents in nanojunctions triggered by phase-locked single cycles of light. In case of a cosine-like phase, the incident optical field combined with nonlinear current-voltage characteristics causes a symmetry break, resulting in a net current of electrons. Lateral constriction by the feedgaps of plasmonic circuits or in semiconductor resonant tunneling structures allows working in the limit of single or few electrons transferred per pulse. The nanometer and femtosecond spatiotemporal confinement enables transport studies in a new range of current densities where e.g. Coulomb repulsion may be effective even at room temperature.
For further information please also refer to the group website: Brida Group and LS Leitenstorfer.
List of publications
2020
- M. Ludwig, G. Aguirregabiria, F. Ritzkowsky, T. Rybka, D. C. Marinica, J. Aizpurua, A. G. Borisov, A. Leitenstorfer, and D. Brida
Sub-femtosecond electron transport in a nanoscale gap
Nature Physics 16, 314 (2020) - DOI: 10.1038/s41567-019-0745-8
2019
- G. Aguirregabiria, D.-C. Marinica, M. Ludwig, D. Brida, A. Leitenstorfer, J. Aizpurua, and A. G. Borisov
Dynamics of electron-emission currents in plasmonic gaps induced by strong fields
Faraday Discussions 214, 147-157 (2019) - DOI: 10.1039/c8fd00158h
2017
- V. Knittel, M. P. Fischer, M. Vennekel, T. Rybka, A. Leitenstorfer, and D. Brida
Dispersion of the nonlinear susceptibility in gold nanoantennas
Phys. Rev. B 96, 125428 (2017) - DOI: 10.1103/PhysRevB.96.125428
2016
- T. Rybka, M. Ludwig, M. F. Schmalz, V. Knittel, D. Brida, and A. Leitenstorfer
Sub-cycle optical phase control of nanotunnelling in the single-electron regime
Nature Photonics 10, 667 (2016) - DOI: 10.1038/nphoton.2016.174
2015
- M. Trushin, A. Grupp, G. Soavi, A. Budweg, D. De Fazio, U. Sassi, A. Lombardo, A. C. Ferrari, W. Belzig, A. Leitenstorfer, and D. Brida
Ultrafast pseudospin dynamics in graphene
Phys. Rev. B 92, 165429 (2015) - DOI: 10.1103/PhysRevB.92.165429