236 citations · 866 across the 37 of their papers we have counts for
40 papers
Tunable WS Micro-Dome Open Cavity Single Photon Source
Jens-Christian Drawer, Salvatore Cianci, Vita Solovyeva +13
Versatile, tunable, and potentially scalable single-photon sources are a key asset in emergent photonic quantum technologies. In this work, a single-photon source based on WS m…
Tuning relaxation and nonlinear upconversion of valley-exciton-polaritons in a monolayer semiconductor
Hangyong Shan, Jamie M. Fitzgerald, Roberto Rosati +9
Controlling exciton relaxation and energy conversion pathways via their coupling to photonic modes is a central task in cavity-mediated quantum materials research. In this context,…
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…
Intrinsically chiral exciton polaritons in an atomically-thin semiconductor
Matthias J. Wurdack, Ivan Iorsh, Sarka Vavreckova +15
Photonic bound states in the continuum (BICs) have emerged as a versatile tool for enhancing light-matter interactions by strongly confining light fields. Chiral BICs are photonic…
Photoluminescence-Based Gas Sensing with MoS2 Monolayers
Gia Quyet Ngo, Chanaprom Cholsuk, Sebastian Thiele +6
Two-dimensional transition metal dichalcogenides (TMDs) are highly appealing for gas sensors, lab-on-a-chip devices and bio-sensing applications because of their strong light-matte…
Room-temperature polariton condensate in a two-dimensional hybrid perovskite
Marti Struve, Christoph Bennenhei, Hamid Pashaei Adl +10
Layered 2D halide perovskites are chemically synthesized realizations of quantum well stacks with giant exciton oscillator strengths, tunable emission spectra and very large excito…
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…
Fabrication of low-loss lithium niobate on insulator waveguides on the wafer scale
Mohammadreza Younesi, Thomas Kasebier, Ilia Elmanov +8
We report on the wafer scale fabrication of single mode low-loss lithium niobate on insulator waveguides utilizing a chemically amplified resist and an optimized dry etching method…
Topologically tunable polaritons based on two-dimensional crystals in a photonic lattice
Lukas Lackner, Oleg A. Egorov, Anthony Ernzerhof +8
Topological photonics is an emergent research discipline which interlinks fundamental aspects of photonics, information processing and solid-state physics. Exciton-polaritons are a…
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…
Quantitative investigation of quantum emitter yield in drop-casted hexagonal boron nitride nanoflakes
Tom Kretzschmar, Sebastian Ritter, Anand Kumar +3
Single photon emitters (SPEs) are a key component for their use as pure photon source in quantum technologies. In this study, we investigate the generation of SPEs from drop-casted…
Organic room-temperature polariton condensate in a higher-order topological lattice
Christoph Bennenhei, Hangyong Shan, Marti Struve +8
Organic molecule exciton-polaritons in photonic lattices are a versatile platform to emulate unconventional phases of matter at ambient conditions, including protected interface mo…
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…
Influence of resonant plasmonic nanoparticles on optically accessing the valley degree of freedom in 2D semiconductors
Tobias Bucher, Zlata Fedorova, Mostafa Abasifard +10
The valley degree of freedom is one of the most intriguing properties of atomically thin transition metal dichalcogenides. Together with the possibility to address this degree of f…
A Tunable Transition Metal Dichalcogenide Entangled Photon-Pair Source
Maximilian A. Weissflog, Anna Fedotova, Yilin Tang +16
Entangled photon-pair sources are at the core of quantum applications like quantum key distribution, sensing, and imaging. Operation in space-limited and adverse environments such…
Testing the postulates of quantum mechanics with coherent states of light and homodyne detection
Lorcan O. Conlon, Angus Walsh, Yuhan Hua +5
Quantum mechanics has withstood every experimental test thus far. However, it relies on ad-hoc postulates which require experimental verification. Over the past decade there has be…
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…
Efficient Light Propagation Algorithm using Quantum Computers
Chanaprom Cholsuk, Siavash Davani, Lorcan O. Conlon +2
Quantum algorithms can potentially overcome the boundary of computationally hard problems. One of the cornerstones in modern optics is the beam propagation algorithm, facilitating…
Ultra-bright single photon source based on an atomically thin material
Jens-Christian Drawer, Victor Nikolaevich Mitryakhin, Hangyong Shan +15
Solid-state single photon sources are central building blocks in quantum communication networks and on-chip quantum information processing. Atomically thin crystals were establishe…
Discriminating mixed qubit states with collective measurements
Lorcan O. Conlon, Falk Eilenberger, Ping Koy Lam +1
It is a central fact in quantum mechanics that non-orthogonal states cannot be distinguished perfectly. This property ensures the security of quantum key distribution. It is theref…
Enhanced Surface Second Harmonic Generation in Nanolaminates
Fatemeh Abtahi, Pallabi Paul, Sebastian Beer +6
Second-harmonic generation (SHG) is a second-order nonlinear optical process that is not allowed in media with inversion sym-metry. However, due to the broken symmetry at the surfa…
Localized creation of yellow single photon emitting carbon complexes in hexagonal boron nitride
Anand Kumar, Chanaprom Cholsuk, Ashkan Zand +5
Single photon emitters in solid-state crystals have received a lot of attention as building blocks for numerous quantum technology applications. Fluorescent defects in hexagonal bo…
Direct Growth of Monolayer MoS on Nanostructured Silicon Waveguides
Athira Kuppadakkath, Emad Najafidehaghani, Ziyang Gan +20
We report for the first time the direct growth of Molybdenum disulfide (MoS) monolayers on nanostructured silicon-on-insulator waveguides. Our results indicate the possibility…