584 citations · 722 across the 11 of their papers we have counts for
11 papers
Infrared Beam-shaping on Demand via Tailored Geometric Phase Metasurfaces employing the Plasmonic Phase-Change Material In3SbTe2
Lukas Conrads, Florian Bontke, Andreas Mathwieser +5
Conventional optical elements are bulky and limited to specific functionalities, contradicting the increasing demand of miniaturization and multi-functionalities. Optical metasurfa…
Super-resolution imaging of nanoscale inhomogeneities in hBN-covered and encapsulated few-layer graphene
Lina Jäckering, Konstantin G. Wirth, Lukas Conrads +9
Encapsulating few-layer graphene (FLG) in hexagonal boron nitride (hBN) can cause nanoscale inhomogeneities in the FLG, including changes in stacking domains and topographic defect…
Resonant Raman scattering of surface phonon polaritons mediated by excitons in WSe films
L. Zhou, K. Wirth, M. N. Bui +4
Surface phonon-polaritons propagating along interfaces of polar dielectrics coexist with excitons in many van der Waals heterostructures, so understanding their mutual interactions…
Mid infrared near-field fingerprint spectroscopy of the 2D electron gas in LaAlO/SrTiO at low temperatures
Julian Barnett, Konstantin G. Wirth, Richard Hentrich +4
Confined electron systems, such as 2D electron gases (2DEGs), 2D materials, or topological insulators show great technological promise but their susceptibility to defects often res…
Direct programming of confined Surface Phonon Polariton Resonators using the plasmonic Phase-Change Material InSbTe
Lukas Conrads, Luis Schüler, Konstantin G. Wirth +2
Tailoring light-matter interaction is essential to realize nanophotonic components. It can be achieved with surface phonon polaritons (SPhPs), an excitation of photons coupled with…
Experimental observation of ABCB stacked tetralayer graphene
Konstantin G. Wirth, Jonas B. Profe, Alexander Rothstein +10
In tetralayer graphene, three inequivalent layer stackings should exist, however, only rhombohedral (ABCA) and Bernal (ABAB) stacking have so far been observed. The three stacking…
Observing 0D subwavelength-localized modes at ~100 THz protected by weak topology
Jinlong Lu, Konstantin G. Wirth, Wenlong Gao +4
Topological photonic crystals (TPhCs) provide robust manipulation of light with built-in immunity to fabrication tolerances and disorder. Recently, it was shown that TPhCs based on…
Local inhomogeneities resolved by scanning probe techniques and their impact on local 2DEG formation in oxide heterostructures
M. -A. Rose, J. Barnett, D. Wendland +6
Lateral inhomogeneities in the formation of 2-dimensional electron gases (2DEG) directly influence their electronic properties. Understanding their origin is an important factor fo…
Surface Polariton-Like s-Polarized Waveguide Modes in Switchable Dielectric Thin-Films on Polar Crystals
Nikolai Christian Passler, Andreas Heßler, Matthias Wuttig +2
Surface phonon polaritons (SPhP) and surface plasmon polaritons (SPP), evanescent modes supported by media with negative permittivity, are a fundamental building block of nanophoto…
Probing hyperbolic polaritons using infrared attenuated total reflectance micro-spectroscopy
Thomas G. Folland, Tobias W. W. Maß, Joseph R. Matson +7
Hyperbolic polariton modes are highly appealing for a broad range of applications in nanophotonics, including surfaced enhanced sensing, sub-diffractional imaging and reconfigurabl…
Hyperbolic phonon-polaritons in boron nitride for near-field optical imaging
Peining Li, Martin Lewin, Andrey V. Kretinin +6
Optical imaging beyond the diffraction limit was one of the primary motivations for negative-index metamaterials, resulting in Pendry's perfect lens and the more attainable superle…