Boolakee T, Heide C, Wagner F, Ott C, Schlecht MT, Ristein J, Weber HB, Hommelhoff P (2020)
Publication Language: English
Publication Type: Journal article, Letter
Publication year: 2020
URI: https://iopscience.iop.org/article/10.1088/1361-6455/ab9075
We investigate the transport of optically injected currents in graphene, a (semi-) metal with exceptional optical and electronic properties. We have recently shown that ultrashort laser pulses with low temporal symmetry drive coupled intraband motion and interband (Landau-Zener) transitions resulting in residual ballistic currents in graphene. Here we show experimentally how this current scales as a function of the distance between the light-induced current injection region and the adjacent metal contact electrodes and propose an approach to model the results based on diffusive and field driven charge transport. We expect this study to contribute to ongoing discussions on the propagation of light-field-controlled currents, a requirement for future lightwave electronics, operating at petahertz clock rates.
APA:
Boolakee, T., Heide, C., Wagner, F., Ott, C., Schlecht, M.-T., Ristein, J.,... Hommelhoff, P. (2020). Length-dependence of light-induced currents in graphene. Journal of Physics B-Atomic Molecular and Optical Physics. https://doi.org/10.1088/1361-6455/ab9075
MLA:
Boolakee, Tobias, et al. "Length-dependence of light-induced currents in graphene." Journal of Physics B-Atomic Molecular and Optical Physics (2020).
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