Search Results - "Güdde, J"

Tunable non-integer high-harmonic generation in a topological insulator by Schmid, C. P., Weigl, L., Grössing, P., Junk, V., Gorini, C., Schlauderer, S., Ito, S., Meierhofer, M., Hofmann, N., Afanasiev, D., Crewse, J., Kokh, K. A., Tereshchenko, O. E., Güdde, J., Evers, F., Wilhelm, J., Richter, K., Höfer, U., Huber, R.

“…When intense lightwaves accelerate electrons through a solid, the emerging high-order harmonic (HH) radiation offers key insights into the material 1 – 11 …”
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Subcycle observation of lightwave-driven Dirac currents in a topological surface band by Reimann, J., Schlauderer, S., Schmid, C. P., Langer, F., Baierl, S., Kokh, K. A., Tereshchenko, O. E., Kimura, A., Lange, C., Güdde, J., Höfer, U., Huber, R.

“…Harnessing the carrier wave of light as an alternating-current bias may enable electronics at optical clock rates 1 . Lightwave-driven currents have been…”
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Tracing orbital images on ultrafast time scales by Wallauer, R, Raths, M, Stallberg, K, Münster, L, Brandstetter, D, Yang, X, Güdde, J, Puschnig, P, Soubatch, S, Kumpf, C, Bocquet, F C, Tautz, F S, Höfer, U

“…Frontier orbitals determine fundamental molecular properties such as chemical reactivities. Although electron distributions of occupied orbitals can be imaged…”
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Build-up and dephasing of Floquet–Bloch bands on subcycle timescales by Ito, S., Schüler, M., Meierhofer, M., Schlauderer, S., Freudenstein, J., Reimann, J., Afanasiev, D., Kokh, K. A., Tereshchenko, O. E., Güdde, J., Sentef, M. A., Höfer, U., Huber, R.

“…Strong light fields have created opportunities to tailor novel functionalities of solids 1 – 5 . Floquet–Bloch states can form under periodic driving of…”
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Time-Resolved Investigation of Coherently Controlled Electric Currents at a Metal Surface by Güdde, J, Rohleder, M, Meier, T, Koch, S.W, Höfer, U

“…Studies of current dynamics in solids have been hindered by insufficiently brief trigger signals and electronic detection speeds. By combining a coherent…”
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Formation of image-potential states at the graphene/metal interface by Armbrust, N, Güdde, J, Höfer, U

“…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…”
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Time-resolved two-photon photoemission of unoccupied electronic states of periodically rippled graphene on Ru(0001) by Armbrust, N, Güdde, J, Jakob, P, Höfer, U

“…The unoccupied electronic states of epitaxially grown graphene on Ru(0001) have been explored by time- and angle-resolved two-photon photoemission. We identify…”
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Impact of interface-state formation on the charge-carrier dynamics at organic-metal interfaces by Marks, M, Armbrust, N, Güdde, J, Höfer, U

“…We study the role of electronic interface states on the electron transfer dynamics between layers of the organic semiconductor…”
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Intervalley scattering in MoS2 imaged by two-photon photoemission with a high-harmonic probe by Wallauer, R., Reimann, J., Armbrust, N., Güdde, J., Höfer, U.

“…We report on the direct mapping of electron transfer in the momentum space of bulk MoS2 by means of time- and angle-resolved two-photon photoemission with a…”
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Ultrafast electron dynamics in a topological surface state observed in two-dimensional momentum space by Reimann, J., Sumida, K., Kakoki, M., Kokh, K. A., Tereshchenko, O. E., Kimura, A., Güdde, J., Höfer, U.

“…We study ultrafast population dynamics in the topological surface state of Sb 2 Te 3 in two-dimensional momentum space with time- and angle-resolved two-photon…”
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Femtosecond time-resolved nonlinear optical spectroscopy of charge transfer at the buried GaP/Si(001) interface by Mette, G., Zimmermann, J. E., Lerch, A., Brixius, K., Güdde, J., Beyer, A., Dürr, M., Volz, K., Stolz, W., Höfer, U.

“…The ultrafast charge-carrier dynamics at the buried heterointerface of gallium phosphide on silicon(001) are investigated by means of time-resolved optical…”
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Spectrally resolved maker fringes in high-order harmonic generation by Heyl, C M, Güdde, J, Höfer, U, L'Huillier, A

“…We investigate macroscopic interference effects in high-order harmonic generation using a Ti:sapphire laser operating at a 100 kHz repetition rate. The…”
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Spectroscopy and Dynamics of a Two-Dimensional Electron Gas on Ultrathin Helium Films on Cu(111) by Armbrust, N, Güdde, J, Höfer, U, Kossler, S, Feulner, P

“…Electrons in image-potential states on the surface of bulk helium represent a unique model system of a two-dimensional electron gas. Here, we investigate their…”
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Magnetic-impurity-induced modifications to ultrafast carrier dynamics in the ferromagnetic topological insulators Sb2−xVxTe3 by Sumida, K, Kakoki, M, Reimann, J, Nurmamat, M, Goto, S, Takeda, Y, Saitoh, Y, Kokh, K A, Tereshchenko, O E, Güdde, J, Höfer, U, Kimura, A

“…Quantum anomalous Hall effect (QAHE) is a key phenomenon for low power-consumption device applications owing to its dissipationless spin-polarized and…”
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Electron and lattice dynamics following optical excitation of metals by Hohlfeld, J., Wellershoff, S.-S., Güdde, J., Conrad, U., Jähnke, V., Matthias, E.

“…New results about relaxation dynamics of optically excited electrons in metals, mostly gold and nickel films, are presented. Emphasis is on electron…”
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Time-resolved measurement of surface diffusion induced by femtosecond laser pulses by STEPAN, K, GüDDE, J, HÖFER, U

“…Diffusion of atomic oxygen on a vicinal Pt111 surface induced by femtosecond laser pulses has been studied using optical second-harmonic generation as a…”
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Femtosecond time-resolved studies of image-potential states at surfaces and interfaces of rare-gas adlayers by Gudde, J, Hofer, U

“…Image-potential states have been investigated widely by time-resolved two-photon photoemission (2PPE) as a model system to study electron dynamics at metal…”
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Dynamics of Electronic Transfer Processes at Metal/Insulator Interfaces by Güdde, J, Berthold, W, Höfer, U

“…The coupling of electronic excitations at surfaces to the bulk material is the key to a variety of dynamical processes. Gudde et al discuss the technique of…”
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The role of electron-phonon coupling in femtosecond laser damage of metals by Wellershoff, S.-S., Hohlfeld, J., Güdde, J., Matthias, E.

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Time-resolved two-photon photoemission of buried interface states in Ar/Cu(100) by Rohleder, M, Berthold, W, Güdde, J, Höfer, U

“…We demonstrate the existence of buried image-potential states at the interface between thick Ar films and a Cu(100) substrate. The electron dynamics of these…”
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