170 citations · 566 across the 16 of their papers we have counts for
17 papers
Charge Tunable Optical Nonlinearity of Moiré Exciton-Polaritons
Zhijie Li, Kok Wee Song, Jens-Christian Drawer +16
Transition metal dichalcogenides represent a versatile platform to study strong light-matter interactions based on excitons and electrons in ordered lattices. Twist-engineering of…
Anisotropic nanoscale coherent polariton transport in CrSBr
Paritosh Malik, Dogyun Ko, Vita Solovyeva +11
In a combined experimental and theoretical study, we demonstrate anisotropic polariton transport on the nanoscale in the van der Waals antiferromagnet CrSBr. While effective cavity…
High-Performance Nanophononic Resonators in Self-Suspended WSe Domes and Drums
Jens-Christian Drawer, Bo Han, Edson Rafael Cardozo de Oliveira +7
Van der Waals materials are ideally suited for the implementation of high-frequency nanophononic resonators with atomically flat interfaces. Here, we present two versatile van der…
Translationally deformed topological charge nanolaser with an ultrasmall mode volume
Shengqun Guo, Feng Tian, Yuhua Liao +2
Developing vortex nanolasers is highly desirable for on-chip multidimensional large-capacity information processing. Topological optical modes hold great promise for achieving cohe…
Exciton-polariton condensate in the van der Waals magnet CrSBr
Bo Han, Hangyong Shan, Kok Wee Song +12
Van der Waals magnets are an emergent material class of paramount interest for fundamental studies in coupling light with matter excitations, which are uniquely linked to their und…
Infrared magneto-polaritons in MoTe mono- and bilayers
Bo Han, Jamie M. Fitzgerald, Lukas Lackner +8
MoTe monolayers and bilayers are unique within the family of van-der-Waals materials since they pave the way towards atomically thin infrared light-matter quantum interfaces, p…
Correlated magnetism of moiré exciton-polaritons on a triangular electron-spin lattice
Johannes Scherzer, Lukas Lackner, Bo Han +13
We demonstrate evidence of correlated magnetism for exciton-polaritons in a MoSe/WS moiré heterostructure with near-parallel alignment subject to electron doping. In ou…
Revealing dark exciton signatures in polariton spectra of 2D materials
Beatriz Ferreira, Hangyong Shan, Roberto Rosati +12
Dark excitons in transition metal dichalcogenides (TMD) have been so far neglected in the context of polariton physics due to their lack of oscillator strength. However, in tungste…
Engineering the impact of phonon dephasing on the coherence of a WSe single-photon source via cavity quantum electrodynamics
Victor Nikolaevich Mitryakhin, Alexander Steinhoff, Jens-Christian Drawer +13
Emitter dephasing is one of the key issues in the performance of solid-state single photon sources. Among the various sources of dephasing, acoustic phonons play a central role in…
In-situ spontaneous emission control of MoSe-WSe interlayer excitons with near-unity quantum yield
Bo Han, Chirag Chandrakant Palekar, Sven Stephan +12
Optical resonators are a powerful platform to control the spontaneous emission dynamics of excitons in solid-state nanostructures. Here, we study a MoSe-WSe van-der-Waals h…
Confined-state physics and signs of fermionization of moiré excitons in WSe/MoSe heterobilayers
Frederik Lohof, Johannes Michl, Alexander Steinhoff +10
We revisit and extend the standard bosonic interpretation of interlayer excitons in the moiré potential of twisted heterostructures of transition-metal dichalcogenides. In our expe…
Strongly enhanced light-matter coupling of a monolayer WS2 from a bound state in the continuum
E. Maggiolini, L. Polimeno, F. Todisco +11
Optical bound states in the continuum (BIC) allow to totally prevent a photonic mode from radiating into free space along a given spatial direction. Polariton excitations derived f…
Brightening of a dark monolayer semiconductor via strong light-matter coupling in a cavity
Hangyong Shan, Ivan Iorsh, Bo Han +13
Engineering the properties of quantum materials via strong light-matter coupling is a compelling research direction with a multiplicity of modern applications. Those range from mod…
Valley-exchange coupling probed by angle-resolved photoluminescence
Joshua J. P Thompson, Samuel Brem, Hanlin Fang +7
The optical properties of monolayer transition metal dichalcogenides are dominated by tightly-bound excitons. They form at distinct valleys in reciprocal space, and can interact vi…
Spatial coherence of room-temperature monolayer WSe exciton-polaritons in a trap
Hangyong Shan, Lukas Lackner, Bo Han +16
The emergence of spatial and temporal coherence of light emitted from solid-state systems is a fundamental phenomenon, rooting in a plethora of microscopic processes. It is intrins…
Measurement of the Spin-Forbidden Dark Excitons in MoS2 and MoSe2 monolayers
C. Robert, B. Han, P. Kapuscinski +10
Excitons with binding energies of a few hundreds of meV control the optical properties of transition metal dichalcogenide monolayers. Knowledge of the fine structure of these excit…
Control of the Exciton Radiative Lifetime in van der Waals Heterostructures
H. H. Fang, B. Han, C. Robert +9
Optical properties of atomically thin transition metal dichalcogenides are controlled by robust excitons characterized by a very large oscillator strength. Encapsulation of monolay…