205 citations · 752 across the 23 of their papers we have counts for
6 papers · 1 filter
Discovery of interlayer plasmon polaron in graphene/WS heterostructures
Søren Ulstrup, Yann in 't Veld, Jill A. Miwa +11
Harnessing electronic excitations involving coherent coupling to bosonic modes is essential for the design and control of emergent phenomena in quantum materials [1]. In situations…
Polarization-dependent selection rules and optical spectrum atlas of twisted bilayer graphene quantum dots
Yunhua Wang, Guodong Yu, Malte Rösner +3
Finding out how symmetry encodes optical polarization information into the selection rule in molecules and materials is important for their optoelectronic applications including sp…
Plasmonic Quantum Dots in Twisted Bilayer Graphene
Tom Westerhout, Mikhail I. Katsnelson, Malte Rösner
We derive a material-realistic real-space many-body Hamiltonian for twisted bilayer graphene from first principles, including both single-particle hopping terms for electrons…
Electronic and Optical properties of transition metal dichalcogenides under symmetric and asymmetric field-effect doping
Peiliang Zhao, Jin Yu, H. Zhong +3
Doping via electrostatic gating is a powerful and widely used technique to tune the electron densities in layered materials. The microscopic details of how these setups affect the…
Observation of exciton redshift-blueshift crossover in monolayer WS2
Edbert J. Sie, Alexander Steinhoff, Christopher Gies +10
We report a rare atom-like interaction between excitons in monolayer WS2, measured using ultrafast absorption spectroscopy. At increasing excitation density, the exciton resonance…
Electric-field switchable second-harmonic generation in bilayer MoS by inversion symmetry breaking
Julian Klein, Jakob Wierzbowski, Alexander Steinhoff +8
We demonstrate pronounced electric-field-induced second-harmonic generation in naturally inversion symmetric 2H stacked bilayer MoS embedded into microcapacitor devices. By a…