Tobias Eul
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View article: Photoemission electron microscopy of exciton-polaritons in thin WSe$_2$ waveguides
Photoemission electron microscopy of exciton-polaritons in thin WSe$_2$ waveguides Open
Exciton-polaritons emerging from the interaction of photons and excitons in the strong coupling regime are intriguing quasiparticles for the potential exchange of energy during light-matter interaction processes such as light harvesting. T…
View article: Exploring the third dimension in quantum confinement of surface electrons
Exploring the third dimension in quantum confinement of surface electrons Open
Quantum confinement of surface electrons in two-dimensional metal-organic porous networks offers a powerful route to engineer electronic states for emerging quantum and spintronic technologies at the molecular scale. To date, such confinem…
View article: Temperature-driven confinements of surface electrons and adatoms in a weakly interacting 2D organic porous network
Temperature-driven confinements of surface electrons and adatoms in a weakly interacting 2D organic porous network Open
Two-dimensional organic porous networks (2DOPNs) have opened new vistas for tailoring the physicochemical characteristics of metallic surfaces. These typically chemically bound nanoporous structures act as periodical quantum wells leading …
View article: Plasmonic wavelength-dependent optical switch
Plasmonic wavelength-dependent optical switch Open
We design and experimentally demonstrate an optical switch based on the interference of plasmonic modes in whispering gallery mode (WGM) antennas. Simultaneous excitation of even and odd WGM modes, enabled by a small symmetry breaking via …
View article: Coherent response of the electronic system driven by non-interfering laser pulses
Coherent response of the electronic system driven by non-interfering laser pulses Open
The strength of light–matter interaction in condensed matter is fundamentally linked to the orientation and oscillation strength of the materials’ optical transition dipoles. Structurally anisotropic materials, e.g., elongated molecules, e…
View article: Tracing the formation of oxygen vacancies at the conductive LaAlO<sub>3</sub>/SrTiO<sub>3</sub> interface via photoemission
Tracing the formation of oxygen vacancies at the conductive LaAlO<sub>3</sub>/SrTiO<sub>3</sub> interface via photoemission Open
The two-dimensional electron gas (2DEG) generated at the LaAlO3/SrTiO3 interface has been in the focus of oxides research since its first discovery. Although oxygen vacancies play an important role in the generation of the insulator-to-met…
View article: Energy and Momentum Distribution of Surface Plasmon-Induced Hot Carriers Isolated <i>via</i> Spatiotemporal Separation
Energy and Momentum Distribution of Surface Plasmon-Induced Hot Carriers Isolated <i>via</i> Spatiotemporal Separation Open
Raw data of the time-dependent energy density calculation and time-resolved photoemission electron microscopy (TR-PEEM) measurements used in the manuscript. A preprint of the manuscript is available on arXiv: 2107.14277 The manuscript was …
View article: Spectroscopic Evidence for a New Type of Surface Resonance at Noble-Metal Surfaces
Spectroscopic Evidence for a New Type of Surface Resonance at Noble-Metal Surfaces Open
We investigate the surface- and bulk-like properties of the pristine (110)-surface of silver using threshold photoemission by excitation with light of 5.9 eV. Using a momentum microscope, we identified two distinct transitions along the $\…
View article: Momentum and energy dissipation of hot electrons in a Pb/Ag(111) quantum well system
Momentum and energy dissipation of hot electrons in a Pb/Ag(111) quantum well system Open
Funder: \n Deutsche Forschungsgemeinschaft\n http://dx.doi.org/10.13039/501100001659
View article: Original Data for Manuscript "Energy and Momentum Distribution of Surface Plasmon-induced Hot Carriers Isolated via Spatiotemporal Separation"
Original Data for Manuscript "Energy and Momentum Distribution of Surface Plasmon-induced Hot Carriers Isolated via Spatiotemporal Separation" Open
Raw data of the time-dependent energy density calculation and time-resolved photoemission electron microscopy (TR-PEEM) measurements used in the manuscript. A preprint of the manuscript is available on arXiv: 2107.14277 The manuscript was …
View article: Energy and Momentum Distribution of Surface Plasmon-induced Hot Carriers Isolated via Spatiotemporal Separation
Energy and Momentum Distribution of Surface Plasmon-induced Hot Carriers Isolated via Spatiotemporal Separation Open
Understanding the differences between photon-induced and plasmon-induced hot electrons is essential for the construction of devices for plasmonic energy conversion. The mechanism of the plasmonic enhancement in photochemistry, photocatalys…