128 citations · 392 across the 8 of their papers we have counts for
8 papers
Buildup and dephasing of Floquet-Bloch bands on subcycle time scales
S. Ito, M. Schüler, M. Meierhofer +10
Strong light fields have created spectacular opportunities to tailor novel functionalities of solids. Floquet-Bloch states can form under periodic driving of electrons and enable e…
Ultrafast electron dynamics in a topological surface state observed in two-dimensional momentum space
J. Reimann, K. Sumida, M. Kakoki +5
We study ultrafast population dynamics in the topological surface state of SbTe in two-dimensional momentum space with time- and angle-resolved two-photon photoemission. Li…
Momentum-resolved observation of exciton formation dynamics in monolayer WS
Robert Wallauer, Raul Perea-Causin, Lasse Münster +8
The dynamics of exciton formation in transition metal dichalcogenides is difficult to measure experimentally, since many momentum-indirect exciton states are not accessible to opti…
Second-harmonic generation as probe for structural and electronic properties of buried GaP/Si(001) interfaces
K. Brixius, A. Beyer, J. Güdde +4
Optical second-harmonic generation is demonstrated to be a sensitive probe of the buried interface between the lattice matched semiconductors gallium phosphide and silicon with (00…
Model potential for the description of metal/organic interface states
N. Armbrust, F. Schiller, J. Güdde +1
We present an analytical one-dimensional model potential for the description of electronic interface states that form at the interface between a metal surface and flat-lying adlaye…
Generation of Transient Photocurrents in the Topological Surface State of SbTe by Direct Optical Excitation with Mid-Infrared Pulses
K. Kuroda, J. Reimann, J. Güdde +1
We combine tunable mid-infrared (MIR) pump pulses with time- and angle-resolved two-photon photoemission to study ultrafast photoexcitation of the topological surface state (TSS) o…
Formation of image-potential states at the graphene/metal interface
N. Armbrust, J. Güdde, U. Höfer
The formation of image-potential states at the interface between a graphene layer and a metal surface is studied by means of model calculations. An analytical one-dimensional model…
Second-order magnetic contributions to the hyperfine splitting of the 5snd ^1D_2 states in ^87Sr
J. Guedde, A. Klinkmueller, P. J. West +1
The hyperfine structure of 5snd ^1D_2 states in ^{87}Sr was studied for principal quantum numbers 11 <= n <= 25 by Doppler-free two-photon excitation combined with thermionic detec…