110 citations · 722 across the 40 of their papers we have counts for
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Scalable Quantum Photonic Platform Based on Site-Controlled Quantum Dots Coupled to Circular Bragg Grating Resonators
Kartik Gaur, Avijit Barua, Sarthak Tripathi +12
The scalable integration of solid-state quantum emitters into photonic nanostructures remains a central challenge for quantum photonic technologies. Here, we demonstrate a robust a…
Deterministic nanofabrication of quantum dot-circular Bragg grating resonators with high process yield using in-situ electron beam lithography
Avijit Barua, Kartik Gaur, Leo J. Roche +5
The controlled integration of quantum dots (QDs) as single-photon emitters into quantum light sources is essential for the implementation of large-scale quantum networks. In this s…
Bright electrically contacted circular Bragg grating resonators with deterministically integrated quantum dots
Setthanat Wijitpatima, Normen Auler, Priyabata Mudi +7
Cavity-enhanced emission of electrically controlled semiconductor quantum dots is essential in developing bright quantum devices for real-world quantum photonic applications. Combi…
Enhancement of interlayer exciton emission in a TMDC heterostructure via a multi-resonant chirped microresonator up to room temperature
Chirag C. Palekar, Barbara Rosa, Niels Heermeier +5
We report on multi-resonance chirped distributed Bragg reflector (DBR) microcavities. These systems are employed to investigate the light-mater interaction with both intra- and int…
Epitaxial growth and characterization of multi-layer site-controlled InGaAs quantum dots based on the buried stressor method
Imad Limame, Ching-Wen Shih, Alexej Koltchanov +8
We report on the epitaxial growth, theoretical modeling, and structural as well as optical investigation of multi-layer, site-controlled quantum dots fabricated using the buried st…
Amplification of interlayer exciton emission in twisted WSe/WSe/MoSe heterotrilayers
Chirag C. Palekar, Paulo E. Faria Junior, Barbara Rosa +4
Transition metal dichalcogenide (TMDC) heterostructures have unique properties that depend on the twisting angle and stacking order of two or more monolayers. However, their practi…
Intermediate Field Coupling of Single Epitaxial Quantum Dots to Plasmonic Waveguides
Michael Seidel, Yuhui Yang, Thorsten Schumacher +6
Key requirements for quantum plasmonic nanocircuits are reliable single-photon sources, high coupling efficiency to the plasmonic structures and low propagation losses. Self-assemb…
Temperature dependent temporal coherence of metallic-nanoparticle-induced single-photon emitters in a WSe monolayer
Martin von Helversen, Lara Greten, Imad Limame +7
In recent years, much research has been undertaken to investigate the suitability of two-dimensional materials to act as single-photon sources with high optical and quantum optical…
Controlled Coherent Coupling in a Quantum Dot Molecule Revealed by Ultrafast Four-Wave Mixing Spectroscopy
Daniel Wigger, Johannes Schall, Marielle Deconinck +18
Semiconductor quantum dot molecules are considered as promising candidates for quantum technological applications due to their wide tunability of optical properties and coverage of…
Low-threshold lasing of optically pumped micropillar lasers with AlGaAs/AlGaAs distributed Bragg reflectors
Ching-Wen Shih, Imad Limame, Sebastian Krüger +4
We report on the design, realization and characterization of optically pumped micropillar lasers with low-absorbing AlGaAs/AlGaAs dielectric Bragg r…
Spin-lasing in bimodal quantum dot micropillar cavities
Niels Heermeier, Tobias Heuser, Jan Große +6
Spin-controlled lasers are highly interesting photonic devices and have been shown to provide ultra-fast polarization dynamics in excess of 200 GHz. In contrast to conventional sem…
Bright electrically controllable quantum-dot-molecule devices fabricated by in-situ electron-beam lithography
Johannes Schall, Marielle Deconinck, Nikolai Bart +15
Self-organized semiconductor quantum dots represent almost ideal two-level systems, which have strong potential to applications in photonic quantum technologies. For instance, they…
Directional single-photon emission from deterministic quantum dot waveguide structures
Paweł Mrowiński, Peter Schnauber, Arsenty Kaganskiy +4
Chiral light-matter interaction can lead to directional emission of two-level light emitters in waveguides. This interesting physics effect has raised considerable attention in rec…
Interplay between emission wavelength and s-p splitting in MOCVD-grown InGaAs/GaAs quantum dots emitting above 1.3 μm
Paweł Podemski, Anna Musiał, Krzysztof Gawarecki +11
The electronic structure of strain-engineered single InGaAs/GaAs quantum dots emitting in the telecommunication O band is probed experimentally by photoluminescence excitation spec…
Directional emission of a deterministically fabricated quantum dot - Bragg reflection multi-mode waveguide system
Paweł Mrowiński, Peter Schnauber, Philipp Gutsche +5
We report on the experimental study and numerical analysis of chiral light-matter coupling in deterministically fabricated quantum dot (QD) waveguide structures. We apply in-situ e…
Enhanced photon-extraction efficiency from InGaAs/GaAs quantum dots in deterministic photonic structures at 1.3 μm fabricated by in-situ electron-beam lithography
Nicole Srocka, Anna Musiał, Philipp-Immanuel Schneider +8
The main challenge in the development of non-classical light sources remains their brightness that limits the data transmission and processing rates as well as the realization of p…
Intensity fluctuations in bimodal micropillar lasers enhanced by quantum-dot gain competition
H. A. M. Leymann, C. Hopfmann, F. Albert +8
We investigate correlations between orthogonally polarized cavity modes of a bimodal micropillar laser with a single layer of self-assembled quantum dots in the active region. Whil…