@article{22533,
  author       = {{Meier, F. and Protte, M. and Baron, E. and Feneberg, M. and Goldhahn, R. and Reuter, Dirk and As, D. J.}},
  issn         = {{2158-3226}},
  journal      = {{AIP Advances}},
  title        = {{{Selective area growth of cubic gallium nitride on silicon (001) and 3C-silicon carbide (001)}}},
  doi          = {{10.1063/5.0053865}},
  year         = {{2021}},
}

@article{22723,
  author       = {{Yoon, Gwanho and Tanaka, Takuo and Zentgraf, Thomas and Rho, Junsuk}},
  issn         = {{0022-3727}},
  journal      = {{Journal of Physics D: Applied Physics}},
  title        = {{{Recent progress on metasurfaces: applications and fabrication}}},
  doi          = {{10.1088/1361-6463/ac0faa}},
  volume       = {{54}},
  year         = {{2021}},
}

@unpublished{22807,
  abstract     = {{Photonic quantum technologies [1] with applications in quantum
communication, sensing as well as quantum simulation and computing, are on the
verge of becoming commercially available. One crucial building block are
tailored nanoscale integratable quantum light sources, matching the specific
needs of use-cases. Several different approaches to realize solid-state quantum
emitters [2] with high performance [3] have been pursued. However, the
properties of the emitted single photons are always defined by the individual
quantum light source and despite numerous quantum emitter tuning
techniques [4-7], scalability is still a major challenge. Here we show an
emitter-independent method to tailor and control the properties of the single
photon emission. We demonstrate a laser-controlled down-conversion process from
an excited state of a quantum three-level system [8]. Starting from a biexciton
state, a tunable control laser field defines a virtual state in a stimulated
process. From there, spontaneous emission to the ground state leads to
optically controlled single photon emission. Based on this concept, we
demonstrate energy tuning of the single photon emission with a control laser
field. The nature of the involved quantum states furthermore provides a unique
basis for the future control of polarization and bandwidth, as predicted by
theory [9,10]. Our demonstration marks an important step towards tailored
single photon emission from a photonic quantum system based on quantum optical
principles.}},
  author       = {{Jonas, B. and Heinze, D. and Schöll, E. and Kallert, P. and Langer, T. and Krehs, S. and Widhalm, A. and Jöns, K. D. and Reuter, D. and Schumacher, S. and Zrenner, Artur}},
  booktitle    = {{arXiv:2105.12393}},
  title        = {{{Nonlinear down-conversion in a single quantum dot}}},
  year         = {{2021}},
}

@article{22814,
  author       = {{Weidmann, Nils and Salunkhe, Shubhangi and Anjorin, Anthony and Yigitbas, Enes and Engels, Gregor}},
  issn         = {{1660-1769}},
  journal      = {{The Journal of Object Technology}},
  title        = {{{Automating Model Transformations for Railway Systems Engineering.}}},
  doi          = {{10.5381/jot.2021.20.3.a10}},
  year         = {{2021}},
}

@inproceedings{22819,
  author       = {{Yigitbas, Enes and Karakaya, Kadiray and Jovanovikj, Ivan and Engels, Gregor}},
  booktitle    = {{2021 International Symposium on Software Engineering for Adaptive and Self-Managing Systems (SEAMS)}},
  title        = {{{Enhancing Human-in-the-Loop Adaptive Systems through Digital Twins and VR Interfaces}}},
  doi          = {{10.1109/seams51251.2021.00015}},
  year         = {{2021}},
}

@inproceedings{22913,
  author       = {{Hüllermeier, Eyke and Mohr, Felix and Tornede, Alexander and Wever, Marcel Dominik}},
  location     = {{Bilbao (Virtual)}},
  title        = {{{Automated Machine Learning, Bounded Rationality, and Rational Metareasoning}}},
  year         = {{2021}},
}

@inproceedings{22914,
  author       = {{Mohr, Felix and Wever, Marcel Dominik}},
  location     = {{Virtual}},
  title        = {{{Replacing the Ex-Def Baseline in AutoML by Naive AutoML}}},
  year         = {{2021}},
}

@inproceedings{22959,
  author       = {{Weidmann, Nils and Engels, Gregor}},
  booktitle    = {{Proceedings of the Genetic and Evolutionary Computation Conference}},
  location     = {{Lille, France}},
  title        = {{{Concurrent model synchronisation with multiple objectives}}},
  doi          = {{10.1145/3449639.3459283}},
  year         = {{2021}},
}

@inproceedings{22961,
  author       = {{Schütz, Stefan and Elsner, Nikolaus and Henke, Christian and Trächtler, Ansgar}},
  booktitle    = {{Fachtagung VDI MECHATRONIK 2021}},
  title        = {{{Kraftsensitive Kalibriermethode für Industrieroboter}}},
  year         = {{2021}},
}

@article{22962,
  author       = {{Schütz, Stefan and Rüting, Arne Thorsten and Henke, Christian and Trächtler, Ansgar}},
  journal      = {{at-Automatisierungstechnik}},
  number       = {{3}},
  pages        = {{231--241}},
  title        = {{{Echtzeitfähige Planung optimierter Trajektorien für sensorgeführte, kinematisch redundante Robotersysteme auf einer Industriesteuerung}}},
  volume       = {{69}},
  year         = {{2021}},
}

@inproceedings{23374,
  author       = {{Kummita, Sriteja and Piskachev, Goran and Spath, Johannes and Bodden, Eric}},
  booktitle    = {{2021 International Conference on Code Quality (ICCQ)}},
  title        = {{{Qualitative and Quantitative Analysis of Callgraph Algorithms for Python}}},
  doi          = {{10.1109/iccq51190.2021.9392986}},
  year         = {{2021}},
}

@inproceedings{21727,
  abstract     = {{Platform-based business models underlie the success of many of today’s largest, fastest-growing, and most disruptive companies. Despite the success of prominent examples, such as Uber and Airbnb, creating a profitable platform ecosystem presents a key challenge for many companies across all industries. Although research provides knowledge about platforms’ different value drivers (e.g., network effects), companies that seek to transform their current business model into a platform-based one lack an artifact to reduce knowledge boundaries, collaborate effectively, and cope with the complexities and dynamics of platform ecosystems. We address this challenge by developing two artifacts and combining research from variability modeling, business model dependencies, and system dynamics. This paper presents a design science research approach to develop the platform ecosystem modeling language and the platform ecosystem development tool that support researcher and practitioner by visualizing and simulating platform ecosystems. }},
  author       = {{Vorbohle, Christian and Gottschalk, Sebastian}},
  booktitle    = {{Proceedings of the 29th European Conference on Information Systems (ECIS)}},
  keywords     = {{Platform Ecosystems, Platform Ecosystem Modeling Language, Platform Ecosystem Development Tool, Business Models, Design Science}},
  location     = {{Virtual Conference/Workshop}},
  publisher    = {{AIS}},
  title        = {{{Towards Visualizing and Simulating Business Models in Dynamic Platform Ecosystems }}},
  year         = {{2021}},
}

@article{21932,
  abstract     = {{Gaussian-beam-like bundles of semi-guided waves propagating in a dielectric slab can excite modes with high-order optical angular momentum supported by a circular fiber. We consider a multimode step-index fiber with a high-index coating, where the waves in the slab are evanescently coupled to the modes of the fiber. Conditions for effective resonant interaction are identified. Based on a hybrid analytical–numerical coupled mode model, our simulations predict that substantial fractions of the input power can be focused into waves with specific orbital angular momentum, of excellent purity, with a clear distinction between degenerate modes with opposite vorticity.}},
  author       = {{Hammer, Manfred and Ebers, Lena and Förstner, Jens}},
  issn         = {{0740-3224}},
  journal      = {{Journal of the Optical Society of America B}},
  keywords     = {{tet_topic_waveguides}},
  number       = {{5}},
  pages        = {{1717}},
  title        = {{{Resonant evanescent excitation of guided waves with high-order optical angular momentum}}},
  doi          = {{10.1364/josab.422731}},
  volume       = {{38}},
  year         = {{2021}},
}

@article{22003,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>The coherent electron spin dynamics of an ensemble of singly charged (In,Ga)As/GaAs quantum dots in a transverse magnetic field is driven by periodic optical excitation at 1 GHz repetition frequency. Despite the strong inhomogeneity of the electron <jats:italic>g</jats:italic> factor, the spectral spread of optical transitions, and the broad distribution of nuclear spin fluctuations, we are able to push the whole ensemble of excited spins into a single Larmor precession mode that is commensurate with the laser repetition frequency. Furthermore, we demonstrate that an optical detuning of the pump pulses from the probed optical transitions induces a directed dynamic nuclear polarization and leads to a discretization of the total magnetic field acting on the electron ensemble. Finally, we show that the highly periodic optical excitation can be used as universal tool for strongly reducing the nuclear spin fluctuations and preparation of a robust nuclear environment for subsequent manipulation of the electron spins, also at varying operation frequencies.</jats:p>}},
  author       = {{Evers, E. and Kopteva, N. E. and Yugova, I. A. and Yakovlev, D. R. and Reuter, Dirk and Wieck, A. D. and Bayer, M. and Greilich, A.}},
  issn         = {{2056-6387}},
  journal      = {{npj Quantum Information}},
  title        = {{{Suppression of nuclear spin fluctuations in an InGaAs quantum dot ensemble by GHz-pulsed optical excitation}}},
  doi          = {{10.1038/s41534-021-00395-1}},
  year         = {{2021}},
}

@article{22004,
  author       = {{Schall, Johannes and Deconinck, Marielle and Bart, Nikolai and Florian, Matthias and Helversen, Martin and Dangel, Christian and Schmidt, Ronny and Bremer, Lucas and Bopp, Frederik and Hüllen, Isabell and Gies, Christopher and Reuter, Dirk and Wieck, Andreas D. and Rodt, Sven and Finley, Jonathan J. and Jahnke, Frank and Ludwig, Arne and Reitzenstein, Stephan}},
  issn         = {{2511-9044}},
  journal      = {{Advanced Quantum Technologies}},
  title        = {{{Bright Electrically Controllable Quantum‐Dot‐Molecule Devices Fabricated by In Situ Electron‐Beam Lithography}}},
  doi          = {{10.1002/qute.202100002}},
  year         = {{2021}},
}

@techreport{29807,
  author       = {{Linnig, Caterina and Tröster, Thomas}},
  publisher    = {{Deutsche Bundesstiftung Umwelt (DBU)}},
  title        = {{{Entwicklung eines neuartigen Reinigungsverfahrens für recycelte Kohlenstofffasern}}},
  year         = {{2021}},
}

@inproceedings{29235,
  author       = {{Gottschalk, Sebastian and Aziz, Muhammad Suffyan and Yigitbas, Enes and Engels, Gregor}},
  booktitle    = {{Software Business - 12th International Conference, ICSOB 2021, Drammen, Norway, December 2-3, 2021, Proceedings}},
  editor       = {{Wang, Xiaofeng and Martini, Antonio and Nguyen-Duc, Anh and Stray, Viktoria}},
  pages        = {{205–220}},
  publisher    = {{Springer}},
  title        = {{{Design Principles for a Crowd-Based Prototype Validation Platform}}},
  doi          = {{10.1007/978-3-030-91983-2_16}},
  volume       = {{434}},
  year         = {{2021}},
}

@article{28255,
  abstract     = {{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 weak topology with a dislocation inherit this robustness and further host topologically protected lower-dimensional localized modes. However, TPhCs with weak topology at optical frequencies have not been demonstrated so far. Here, we use scattering-type scanning near-field optical microscopy to verify mid-bandgap zero-dimensional light localization close to 100 THz in a TPhC with nontrivial Zak phase and an edge dislocation. We show that because of the weak topology, differently extended dislocation centers induce similarly strong light localization. The experimental results are supported by full-field simulations. Along with the underlying fundamental physics, our results lay a foundation for the application of TPhCs based on weak topology in active topological nanophotonics, and nonlinear and quantum optic integrated devices because of their strong and robust light localization.}},
  author       = {{Lu, Jinlong and Wirth, Konstantin G. and Gao, Wenlong and Heßler, Andreas and Sain, Basudeb and Taubner, Thomas and Zentgraf, Thomas}},
  issn         = {{2375-2548}},
  journal      = {{Science Advances}},
  number       = {{49}},
  title        = {{{Observing 0D subwavelength-localized modes at ~100 THz protected by weak topology}}},
  doi          = {{10.1126/sciadv.abl3903}},
  volume       = {{7}},
  year         = {{2021}},
}

@inproceedings{30227,
  author       = {{Klippstein, Sven Helge}},
  location     = {{Tudolstadt}},
  title        = {{{Online Monitoring des Beschichtungsprozesses im Laser Sintern, Systementwicklung und Einflussanalyse}}},
  year         = {{2021}},
}

@inproceedings{25283,
  author       = {{Moritzer, Elmar and Hecker, Felix and Elsner, Christian Lennart and Hirsch, André}},
  booktitle    = {{Proceedings of  36th Annual Meeting of Polymer Processing Society (PPS-36)}},
  location     = {{Montreal, Canada}},
  title        = {{{Influences of Temperature-Dependent Boundary Conditions on Component Properties in Arburg Plastic Freeforming}}},
  year         = {{2021}},
}