--- _id: '63512' abstract: - lang: eng text: "The state of the art shows that PBF-LB/M offers great potential for pressure-loaded parts, with significant weight reductions and simultaneous optimization of flow resistance. This study is aimed at applying existing calculation methods for pressure-loaded parts to additively manufactured pipe structures, considering the two materials EN AC-43000 (3.2381, AlSi10Mg) and AISI 316L (1.4404, X2CrNiMo17-12-2). For this purpose, systematic tensile tests are carried out for both materials. In addition, a statistical evaluation is performed to determine the design-relevant strength characteristics with a survival probability Ps of 97.5 % for both materials in the as-built and heat-treated condition.\r\nPipe specimens are manufactured, half of which are heat treated, geometrically measured and then subjected to a burst pressure test to experimentally determine the failure-critical internal pressure. These results are compared with calculated burst pressures. The calculations are based on the application-relevant methods identified in this study, considering the strength values determined for the respective material condition. This comparison is used to assess the suitability of the calculation methods for additively manufactured pipe structures, based on the materials investigated." article_number: '105753' author: - first_name: Thorsten full_name: Koers, Thorsten id: '38077' last_name: Koers - first_name: Balázs full_name: Magyar, Balázs id: '97759' last_name: Magyar - first_name: Christian full_name: Bödger, Christian id: '93904' last_name: Bödger - first_name: Thomas full_name: Tröster, Thomas id: '553' last_name: Tröster citation: ama: Koers T, Magyar B, Bödger C, Tröster T. Analytical and experimental determination of the failure-critical pressure of pipe structures manufactured by PBF-LB/M. International Journal of Pressure Vessels and Piping. Published online 2026. doi:10.1016/j.ijpvp.2026.105753 apa: Koers, T., Magyar, B., Bödger, C., & Tröster, T. (2026). Analytical and experimental determination of the failure-critical pressure of pipe structures manufactured by PBF-LB/M. International Journal of Pressure Vessels and Piping, Article 105753. https://doi.org/10.1016/j.ijpvp.2026.105753 bibtex: '@article{Koers_Magyar_Bödger_Tröster_2026, title={Analytical and experimental determination of the failure-critical pressure of pipe structures manufactured by PBF-LB/M}, DOI={10.1016/j.ijpvp.2026.105753}, number={105753}, journal={International Journal of Pressure Vessels and Piping}, publisher={Elsevier BV}, author={Koers, Thorsten and Magyar, Balázs and Bödger, Christian and Tröster, Thomas}, year={2026} }' chicago: Koers, Thorsten, Balázs Magyar, Christian Bödger, and Thomas Tröster. “Analytical and Experimental Determination of the Failure-Critical Pressure of Pipe Structures Manufactured by PBF-LB/M.” International Journal of Pressure Vessels and Piping, 2026. https://doi.org/10.1016/j.ijpvp.2026.105753. ieee: 'T. Koers, B. Magyar, C. Bödger, and T. Tröster, “Analytical and experimental determination of the failure-critical pressure of pipe structures manufactured by PBF-LB/M,” International Journal of Pressure Vessels and Piping, Art. no. 105753, 2026, doi: 10.1016/j.ijpvp.2026.105753.' mla: Koers, Thorsten, et al. “Analytical and Experimental Determination of the Failure-Critical Pressure of Pipe Structures Manufactured by PBF-LB/M.” International Journal of Pressure Vessels and Piping, 105753, Elsevier BV, 2026, doi:10.1016/j.ijpvp.2026.105753. short: T. Koers, B. Magyar, C. Bödger, T. Tröster, International Journal of Pressure Vessels and Piping (2026). date_created: 2026-01-07T08:39:04Z date_updated: 2026-01-14T11:56:01Z department: - _id: '146' - _id: '9' - _id: '624' - _id: '149' - _id: '321' doi: 10.1016/j.ijpvp.2026.105753 keyword: - PBF-LB/M - Pipe structures - Strength assessment - Burst pressure test - Geometrical deviations language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1016/j.ijpvp.2026.105753 oa: '1' publication: International Journal of Pressure Vessels and Piping publication_identifier: issn: - 0308-0161 publication_status: published publisher: Elsevier BV quality_controlled: '1' status: public title: Analytical and experimental determination of the failure-critical pressure of pipe structures manufactured by PBF-LB/M type: journal_article user_id: '97759' year: '2026' ... --- _id: '62946' author: - first_name: Marie full_name: Giesen, Marie last_name: Giesen - first_name: Pascal full_name: Pollmeier, Pascal id: '44191' last_name: Pollmeier - first_name: RonnebaumMarie-Theres full_name: Ronnebaum, RonnebaumMarie-Theres last_name: Ronnebaum - first_name: Johanna full_name: Heitzer, Johanna last_name: Heitzer citation: ama: 'Giesen M, Pollmeier P, Ronnebaum R-T, Heitzer J. Bildung für nachhaltige Entwicklung MI(N)T-Denken – Hintergründe und Umsetzungsmöglichkeiten von BNE in MINT-Lehrkräftefortbildungen. In: Sammelband MINT in der Buchreihe Kompetenzzentren für digital gestützte Schul- und Unterrichtsentwicklung.' apa: Giesen, M., Pollmeier, P., Ronnebaum, R.-T., & Heitzer, J. (n.d.). Bildung für nachhaltige Entwicklung MI(N)T-Denken – Hintergründe und Umsetzungsmöglichkeiten von BNE in MINT-Lehrkräftefortbildungen. In Sammelband MINT in der Buchreihe Kompetenzzentren für digital gestützte Schul- und Unterrichtsentwicklung. bibtex: '@inbook{Giesen_Pollmeier_Ronnebaum_Heitzer, title={Bildung für nachhaltige Entwicklung MI(N)T-Denken – Hintergründe und Umsetzungsmöglichkeiten von BNE in MINT-Lehrkräftefortbildungen}, booktitle={Sammelband MINT in der Buchreihe Kompetenzzentren für digital gestützte Schul- und Unterrichtsentwicklung}, author={Giesen, Marie and Pollmeier, Pascal and Ronnebaum, RonnebaumMarie-Theres and Heitzer, Johanna} }' chicago: Giesen, Marie, Pascal Pollmeier, RonnebaumMarie-Theres Ronnebaum, and Johanna Heitzer. “Bildung für nachhaltige Entwicklung MI(N)T-Denken – Hintergründe und Umsetzungsmöglichkeiten von BNE in MINT-Lehrkräftefortbildungen.” In Sammelband MINT in der Buchreihe Kompetenzzentren für digital gestützte Schul- und Unterrichtsentwicklung, n.d. ieee: M. Giesen, P. Pollmeier, R.-T. Ronnebaum, and J. Heitzer, “Bildung für nachhaltige Entwicklung MI(N)T-Denken – Hintergründe und Umsetzungsmöglichkeiten von BNE in MINT-Lehrkräftefortbildungen,” in Sammelband MINT in der Buchreihe Kompetenzzentren für digital gestützte Schul- und Unterrichtsentwicklung, . mla: Giesen, Marie, et al. “Bildung für nachhaltige Entwicklung MI(N)T-Denken – Hintergründe und Umsetzungsmöglichkeiten von BNE in MINT-Lehrkräftefortbildungen.” Sammelband MINT in der Buchreihe Kompetenzzentren für digital gestützte Schul- und Unterrichtsentwicklung. short: 'M. Giesen, P. Pollmeier, R.-T. Ronnebaum, J. Heitzer, in: Sammelband MINT in der Buchreihe Kompetenzzentren für digital gestützte Schul- und Unterrichtsentwicklung, n.d.' date_created: 2025-12-08T08:49:29Z date_updated: 2026-01-15T08:01:24Z department: - _id: '386' - _id: '33' keyword: - Bildung für nachhaltige Entwicklung - BNE - Nachhaltigkeit - MINT language: - iso: ger project: - _id: '641' name: ComeMINT-Netzwerk. fortbilden durch vernetzen – vernetzen durch fortbilden. Gelingensbedingungen adaptiver MINT-Fortbildungsmodule in Community Networks. publication: Sammelband MINT in der Buchreihe Kompetenzzentren für digital gestützte Schul- und Unterrichtsentwicklung publication_status: inpress quality_controlled: '1' status: public title: Bildung für nachhaltige Entwicklung MI(N)T-Denken – Hintergründe und Umsetzungsmöglichkeiten von BNE in MINT-Lehrkräftefortbildungen type: book_chapter user_id: '44191' year: '2026' ... --- _id: '63676' abstract: - lang: eng text: "\r\n Purpose\r\n The purpose of this paper is to develop new methods of error representation to improve the accuracy and numerical efficiency of a posteriori and goal-oriented adaptive framework of elastoplasticity with Prandtl–Reuss type material laws.\r\n \ \r\n \r\n Design/methodology/approach\r\n \ To obtain new methods of error representation for a posteriori and goal-oriented error estimators, weak forms of primal and dual problems are investigated starting with the initial boundary value problem (IBVP). Then, we approximate both problems using temporal discretization. Additionally, we introduce a secant form considering the nonlinearity of elasto-plastic constitutive equations, which is approximated by a tangent form. Finally, we obtain numerical primal and dual solutions and their corresponding error approximations of discretized primal and dual problems, allowing to build several goal-oriented a posteriori error estimators on temporal and spatial adaptive refinement by inserting primal solutions, dual solutions and their error approximations as arguments in residuals of both weak forms as well as in the secant form of the bilinear residual.\r\n \ \r\n \r\n Findings\r\n \ An elasto-plastic material is investigated in a framework of goal-oriented error estimator by using separately several methods of error representation to deal with either temporal or spatial adaptive refinement, as well as with both refinements leading to an effective reduction of computational effort. Specifically, new error representations based on goal-oriented error estimators are presented and obtained from primal and dual residuals, which use only primal solutions or only dual solutions or a combination of primal and dual solutions as arguments. Error representations obtained from primal residuals and evaluated using only primal arguments do not require the formulation of a dual problem.\r\n \ \r\n \r\n Research limitations/implications\r\n The effectiveness of the different proposed methods is illustrated by an example of a perforated sheet for adaptive spatial refinement where new mesh adaptation methods of error representation are compared against existing mesh adaptation methods such as uniform mesh refinement, mesh refinement based on gradient indicators and adjoint-based methods in literature. The framework generates a balanced mesh consisting of fine, medium and coarse elements for accurate results, avoiding a numerically costly simulation with only fine elements.\r\n \r\n \ \r\n Originality/value\r\n \ All new proposed methods of error representation successfully estimate actual errors during mesh adaptivity. Furthermore, the proposed methods of error representation allow us to obtain significant reduction and equidistribution of spatial error at the end of the mesh adaptivity process. Their application to a framework of goal-oriented error estimation due to time and mesh adaptivity remains an open issue.\r\n " author: - first_name: Arnold full_name: Tchomgue Simeu, Arnold id: '83075' last_name: Tchomgue Simeu - first_name: Ismail full_name: Caylak, Ismail id: '75' last_name: Caylak - first_name: Richard full_name: Ostwald, Richard id: '106876' last_name: Ostwald orcid: 0000-0003-2147-8444 citation: ama: Tchomgue Simeu A, Caylak I, Ostwald R. Error representations for goal-oriented                    a posteriori                    error estimation in elasto-plasticity with applications to mesh adaptivity. Engineering Computations. Published online 2026:1-40. doi:10.1108/ec-12-2023-0975 apa: Tchomgue Simeu, A., Caylak, I., & Ostwald, R. (2026). Error representations for goal-oriented                    a posteriori                    error estimation in elasto-plasticity with applications to mesh adaptivity. Engineering Computations, 1–40. https://doi.org/10.1108/ec-12-2023-0975 bibtex: '@article{Tchomgue Simeu_Caylak_Ostwald_2026, title={Error representations for goal-oriented                    a posteriori                    error estimation in elasto-plasticity with applications to mesh adaptivity}, DOI={10.1108/ec-12-2023-0975}, journal={Engineering Computations}, publisher={Emerald}, author={Tchomgue Simeu, Arnold and Caylak, Ismail and Ostwald, Richard}, year={2026}, pages={1–40} }' chicago: Tchomgue Simeu, Arnold, Ismail Caylak, and Richard Ostwald. “Error Representations for Goal-Oriented                    a Posteriori                    Error Estimation in Elasto-Plasticity with Applications to Mesh Adaptivity.” Engineering Computations, 2026, 1–40. https://doi.org/10.1108/ec-12-2023-0975. ieee: 'A. Tchomgue Simeu, I. Caylak, and R. Ostwald, “Error representations for goal-oriented                    a posteriori                    error estimation in elasto-plasticity with applications to mesh adaptivity,” Engineering Computations, pp. 1–40, 2026, doi: 10.1108/ec-12-2023-0975.' mla: Tchomgue Simeu, Arnold, et al. “Error Representations for Goal-Oriented                    a Posteriori                    Error Estimation in Elasto-Plasticity with Applications to Mesh Adaptivity.” Engineering Computations, Emerald, 2026, pp. 1–40, doi:10.1108/ec-12-2023-0975. short: A. Tchomgue Simeu, I. Caylak, R. Ostwald, Engineering Computations (2026) 1–40. date_created: 2026-01-21T06:49:18Z date_updated: 2026-01-21T06:50:58Z department: - _id: '9' - _id: '952' - _id: '321' doi: 10.1108/ec-12-2023-0975 language: - iso: eng page: 1-40 publication: Engineering Computations publication_identifier: issn: - 0264-4401 - 1758-7077 publication_status: published publisher: Emerald quality_controlled: '1' status: public title: Error representations for goal-oriented a posteriori error estimation in elasto-plasticity with applications to mesh adaptivity type: journal_article user_id: '85414' year: '2026' ... --- _id: '63784' author: - first_name: Dorte full_name: Trienens, Dorte id: '44116' last_name: Trienens - first_name: Florian full_name: Brüning, Florian id: '72920' last_name: Brüning - first_name: Volker full_name: Schöppner, Volker id: '20530' last_name: Schöppner citation: ama: Trienens D, Brüning F, Schöppner V. Wo Forschung, KI und Praxis aufeinandertreffen. kunststoffland NRW report. 2026;03-2025. apa: Trienens, D., Brüning, F., & Schöppner, V. (2026). Wo Forschung, KI und Praxis aufeinandertreffen. Kunststoffland NRW Report, 03–2025. bibtex: '@article{Trienens_Brüning_Schöppner_2026, title={Wo Forschung, KI und Praxis aufeinandertreffen}, volume={03–2025}, journal={kunststoffland NRW report}, author={Trienens, Dorte and Brüning, Florian and Schöppner, Volker}, year={2026} }' chicago: Trienens, Dorte, Florian Brüning, and Volker Schöppner. “Wo Forschung, KI Und Praxis Aufeinandertreffen.” Kunststoffland NRW Report 03–2025 (2026). ieee: D. Trienens, F. Brüning, and V. Schöppner, “Wo Forschung, KI und Praxis aufeinandertreffen,” kunststoffland NRW report, vol. 03–2025, 2026. mla: Trienens, Dorte, et al. “Wo Forschung, KI Und Praxis Aufeinandertreffen.” Kunststoffland NRW Report, vol. 03–2025, 2026. short: D. Trienens, F. Brüning, V. Schöppner, Kunststoffland NRW Report 03–2025 (2026). date_created: 2026-01-28T10:09:30Z date_updated: 2026-01-28T10:09:53Z department: - _id: '9' - _id: '367' - _id: '321' language: - iso: eng publication: kunststoffland NRW report status: public title: Wo Forschung, KI und Praxis aufeinandertreffen type: journal_article user_id: '44116' volume: 03-2025 year: '2026' ... --- _id: '63827' abstract: - lang: eng text: Light-emitting diodes (LEDs) are becoming increasingly important across various sectors of the lighting industry and are being used more frequently. In the field of symbolic projection, research is increasingly focusing on implementing light modulation using energy-efficient, incoherent LEDs rather than lasers. Since light modulation in micro- and nano-optics is typically achieved through phase modulation, Finite-Difference Time-Domain (FDTD) simulations are employed for analysis. The objective of this article is to investigate different approaches for approximating incoherent monochromatic light sources within FDTD simulations. To this end, two approaches based on dipole sources are considered, as well as a method involving plane waves with modulated wavefronts based on Cosine–Fourier functions and a method based on the superposition of Gaussian beams. These methods are evaluated in terms of their accuracy using a two-dimensional double-slit configuration and are compared against a fully incoherent analytical reference. article_number: '128' article_type: original author: - first_name: Dominik full_name: Metzner, Dominik last_name: Metzner - first_name: Jens full_name: Potthoff, Jens last_name: Potthoff - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 citation: ama: Metzner D, Potthoff J, Zentgraf T, Förstner J. Approximating Incoherent Monochromatic Light Sources in FDTD Simulations. Photonics. 2026;13(2). doi:10.3390/photonics13020128 apa: Metzner, D., Potthoff, J., Zentgraf, T., & Förstner, J. (2026). Approximating Incoherent Monochromatic Light Sources in FDTD Simulations. Photonics, 13(2), Article 128. https://doi.org/10.3390/photonics13020128 bibtex: '@article{Metzner_Potthoff_Zentgraf_Förstner_2026, title={Approximating Incoherent Monochromatic Light Sources in FDTD Simulations}, volume={13}, DOI={10.3390/photonics13020128}, number={2128}, journal={Photonics}, publisher={MDPI AG}, author={Metzner, Dominik and Potthoff, Jens and Zentgraf, Thomas and Förstner, Jens}, year={2026} }' chicago: Metzner, Dominik, Jens Potthoff, Thomas Zentgraf, and Jens Förstner. “Approximating Incoherent Monochromatic Light Sources in FDTD Simulations.” Photonics 13, no. 2 (2026). https://doi.org/10.3390/photonics13020128. ieee: 'D. Metzner, J. Potthoff, T. Zentgraf, and J. Förstner, “Approximating Incoherent Monochromatic Light Sources in FDTD Simulations,” Photonics, vol. 13, no. 2, Art. no. 128, 2026, doi: 10.3390/photonics13020128.' mla: Metzner, Dominik, et al. “Approximating Incoherent Monochromatic Light Sources in FDTD Simulations.” Photonics, vol. 13, no. 2, 128, MDPI AG, 2026, doi:10.3390/photonics13020128. short: D. Metzner, J. Potthoff, T. Zentgraf, J. Förstner, Photonics 13 (2026). date_created: 2026-02-02T07:18:03Z date_updated: 2026-02-02T21:38:34Z department: - _id: '15' - _id: '230' - _id: '289' - _id: '623' - _id: '61' doi: 10.3390/photonics13020128 intvolume: ' 13' issue: '2' keyword: - tet_topic_opticalantenna - tet_topic_numerics - tet_topic_meta language: - iso: eng main_file_link: - open_access: '1' url: https://www.mdpi.com/2304-6732/13/2/128 oa: '1' publication: Photonics publication_identifier: issn: - 2304-6732 publication_status: published publisher: MDPI AG quality_controlled: '1' status: public title: Approximating Incoherent Monochromatic Light Sources in FDTD Simulations type: journal_article user_id: '158' volume: 13 year: '2026' ... --- _id: '63890' abstract: - lang: eng text: The computation of highly contracted electron repulsion integrals (ERIs) is essential to achieve quantum accuracy in atomistic simulations based on quantum mechanics. Its growing computational demands make energy efficiency a critical concern. Recent studies demonstrate FPGAs’ superior performance and energy efficiency for computing primitive ERIs, but the computation of highly contracted ERIs introduces significant algorithmic complexity and new design challenges for FPGA acceleration.In this work, we present SORCERI, the first streaming overlay acceleration for highly contracted ERI computations on FPGAs. SORCERI introduces a novel streaming Rys computing unit to calculate roots and weights of Rys polynomials on-chip, and a streaming contraction unit for the contraction of primitive ERIs. This shifts the design bottleneck from limited CPU-FPGA communication bandwidth to available FPGA computation resources. To address practical deployment challenges for a large number of quartet classes, we design three streaming overlays, together with an efficient memory transpose optimization, to cover the 21 most commonly used quartet classes in realistic atomistic simulations. To address the new computation constraints, we use flexible calculation stages with a free-running streaming architecture to achieve high DSP utilization and good timing closure.Experiments demonstrate that SORCERI achieves an average 5.96x, 1.99x, and 1.16x better performance per watt than libint on a 64-core AMD EPYC 7713 CPU, libintx on an Nvidia A40 GPU, and SERI, the prior best-performing FPGA design for primitive ERIs. Furthermore, SORCERI reaches a peak throughput of 44.11 GERIS (109 ERIs per second) that is 1.52x, 1.13x, and 1.93x greater than libint, libintx and SERI, respectively. SORCERI will be released soon at https://github.com/SFU-HiAccel/SORCERI. author: - first_name: Philip full_name: Stachura, Philip last_name: Stachura - first_name: Xin full_name: Wu, Xin id: '77439' last_name: Wu - first_name: Christian full_name: Plessl, Christian id: '16153' last_name: Plessl orcid: 0000-0001-5728-9982 - first_name: Zhenman full_name: Fang, Zhenman last_name: Fang citation: ama: 'Stachura P, Wu X, Plessl C, Fang Z. SORCERI: Streaming Overlay Acceleration for Highly Contracted Electron Repulsion Integral Computations in Quantum Chemistry. In: Proceedings of the 2026 ACM/SIGDA International Symposium on Field Programmable Gate Arrays (FPGA ’26). Association for Computing Machinery; 2026:224-234. doi:10.1145/3748173.3779198' apa: 'Stachura, P., Wu, X., Plessl, C., & Fang, Z. (2026). SORCERI: Streaming Overlay Acceleration for Highly Contracted Electron Repulsion Integral Computations in Quantum Chemistry. Proceedings of the 2026 ACM/SIGDA International Symposium on Field Programmable Gate Arrays (FPGA ’26), 224–234. https://doi.org/10.1145/3748173.3779198' bibtex: '@inproceedings{Stachura_Wu_Plessl_Fang_2026, place={New York, NY, USA}, title={SORCERI: Streaming Overlay Acceleration for Highly Contracted Electron Repulsion Integral Computations in Quantum Chemistry}, DOI={10.1145/3748173.3779198}, booktitle={Proceedings of the 2026 ACM/SIGDA International Symposium on Field Programmable Gate Arrays (FPGA ’26)}, publisher={Association for Computing Machinery}, author={Stachura, Philip and Wu, Xin and Plessl, Christian and Fang, Zhenman}, year={2026}, pages={224–234} }' chicago: 'Stachura, Philip, Xin Wu, Christian Plessl, and Zhenman Fang. “SORCERI: Streaming Overlay Acceleration for Highly Contracted Electron Repulsion Integral Computations in Quantum Chemistry.” In Proceedings of the 2026 ACM/SIGDA International Symposium on Field Programmable Gate Arrays (FPGA ’26), 224–34. New York, NY, USA: Association for Computing Machinery, 2026. https://doi.org/10.1145/3748173.3779198.' ieee: 'P. Stachura, X. Wu, C. Plessl, and Z. Fang, “SORCERI: Streaming Overlay Acceleration for Highly Contracted Electron Repulsion Integral Computations in Quantum Chemistry,” in Proceedings of the 2026 ACM/SIGDA International Symposium on Field Programmable Gate Arrays (FPGA ’26), 2026, pp. 224–234, doi: 10.1145/3748173.3779198.' mla: 'Stachura, Philip, et al. “SORCERI: Streaming Overlay Acceleration for Highly Contracted Electron Repulsion Integral Computations in Quantum Chemistry.” Proceedings of the 2026 ACM/SIGDA International Symposium on Field Programmable Gate Arrays (FPGA ’26), Association for Computing Machinery, 2026, pp. 224–34, doi:10.1145/3748173.3779198.' short: 'P. Stachura, X. Wu, C. Plessl, Z. Fang, in: Proceedings of the 2026 ACM/SIGDA International Symposium on Field Programmable Gate Arrays (FPGA ’26), Association for Computing Machinery, New York, NY, USA, 2026, pp. 224–234.' date_created: 2026-02-06T06:43:22Z date_updated: 2026-02-09T09:16:32Z department: - _id: '27' - _id: '518' doi: 10.1145/3748173.3779198 keyword: - electron repulsion integrals - quantum chemistry - atomistic simulation - overlay architecture - fpga acceleration language: - iso: eng main_file_link: - url: https://dl.acm.org/doi/10.1145/3748173.3779198 page: 224-234 place: New York, NY, USA project: - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: Proceedings of the 2026 ACM/SIGDA International Symposium on Field Programmable Gate Arrays (FPGA '26) publication_identifier: isbn: - '9798400720796' publication_status: published publisher: Association for Computing Machinery status: public title: 'SORCERI: Streaming Overlay Acceleration for Highly Contracted Electron Repulsion Integral Computations in Quantum Chemistry' type: conference user_id: '77439' year: '2026' ... --- _id: '64187' abstract: - lang: eng text: Carbon fiber-reinforced plastics (CFRPs) have become increasingly significant in recent decades due to their remarkable mechanical properties and lightweight nature. This study aims to advance the understanding and simulation of CFRP behavior through the development of a hyperelastic-plastic-damage homogenization method combined with mean-field theory. The material responses of both the fiber and matrix are modeled using strain energy functions that account for damage evolution, while a complete linearization of the homogenization process is derived to ensure the consistent implementation of the Newton–Raphson iteration scheme in large deformation simulations. The innovative aspect of this work lies in the constitutive linearization for the hyperelastic-plastic-damage formulation within a mean-field homogenization framework, providing an efficient Newton algorithm for modeling the nonlinear behavior of CFRP. A failure criterion for the hyperelastic model of fibers is introduced, along with a damage saturation variable in rate form for the matrix, effectively capturing damage evolution. Through discrete formulations for the homogenization, the proposed model’s capability is demonstrated via three numerical examples and validated against experimental investigations, proving its effectiveness and reliability in simulating CFRP damage. article_number: '10812865261420809' author: - first_name: Yingjie full_name: Zhan, Yingjie id: '93591' last_name: Zhan - first_name: Ismail full_name: Caylak, Ismail last_name: Caylak - first_name: Richard full_name: Ostwald, Richard id: '106876' last_name: Ostwald orcid: 0000-0003-2147-8444 - first_name: Rolf full_name: Mahnken, Rolf id: '335' last_name: Mahnken - first_name: Enrico full_name: Barth, Enrico last_name: Barth - first_name: Eckart full_name: Uhlmann, Eckart last_name: Uhlmann citation: ama: Zhan Y, Caylak I, Ostwald R, Mahnken R, Barth E, Uhlmann E. A fully implicit mean-field damage formulation with consistent linearization at large deformations. Mathematics and Mechanics of Solids. Published online 2026. doi:10.1177/10812865261420809 apa: Zhan, Y., Caylak, I., Ostwald, R., Mahnken, R., Barth, E., & Uhlmann, E. (2026). A fully implicit mean-field damage formulation with consistent linearization at large deformations. Mathematics and Mechanics of Solids, Article 10812865261420808. https://doi.org/10.1177/10812865261420809 bibtex: '@article{Zhan_Caylak_Ostwald_Mahnken_Barth_Uhlmann_2026, title={A fully implicit mean-field damage formulation with consistent linearization at large deformations}, DOI={10.1177/10812865261420809}, number={10812865261420808}, journal={Mathematics and Mechanics of Solids}, publisher={SAGE Publications}, author={Zhan, Yingjie and Caylak, Ismail and Ostwald, Richard and Mahnken, Rolf and Barth, Enrico and Uhlmann, Eckart}, year={2026} }' chicago: Zhan, Yingjie, Ismail Caylak, Richard Ostwald, Rolf Mahnken, Enrico Barth, and Eckart Uhlmann. “A Fully Implicit Mean-Field Damage Formulation with Consistent Linearization at Large Deformations.” Mathematics and Mechanics of Solids, 2026. https://doi.org/10.1177/10812865261420809. ieee: 'Y. Zhan, I. Caylak, R. Ostwald, R. Mahnken, E. Barth, and E. Uhlmann, “A fully implicit mean-field damage formulation with consistent linearization at large deformations,” Mathematics and Mechanics of Solids, Art. no. 10812865261420808, 2026, doi: 10.1177/10812865261420809.' mla: Zhan, Yingjie, et al. “A Fully Implicit Mean-Field Damage Formulation with Consistent Linearization at Large Deformations.” Mathematics and Mechanics of Solids, 10812865261420808, SAGE Publications, 2026, doi:10.1177/10812865261420809. short: Y. Zhan, I. Caylak, R. Ostwald, R. Mahnken, E. Barth, E. Uhlmann, Mathematics and Mechanics of Solids (2026). date_created: 2026-02-17T11:21:00Z date_updated: 2026-02-17T11:22:49Z department: - _id: '9' - _id: '952' - _id: '321' doi: 10.1177/10812865261420809 language: - iso: eng publication: Mathematics and Mechanics of Solids publication_identifier: issn: - 1081-2865 - 1741-3028 publication_status: published publisher: SAGE Publications quality_controlled: '1' status: public title: A fully implicit mean-field damage formulation with consistent linearization at large deformations type: journal_article user_id: '85414' year: '2026' ... --- _id: '51204' abstract: - lang: eng text: "Given a real semisimple connected Lie group $G$ and a discrete torsion-free\r\nsubgroup $\\Gamma < G$ we prove a precise connection between growth rates of the\r\ngroup $\\Gamma$, polyhedral bounds on the joint spectrum of the ring of\r\ninvariant differential operators, and the decay of matrix coefficients. In\r\nparticular, this allows us to completely characterize temperedness of\r\n$L^2(\\Gamma\\backslash G)$ in this general setting." author: - first_name: Christopher full_name: Lutsko, Christopher last_name: Lutsko - first_name: Tobias full_name: Weich, Tobias id: '49178' last_name: Weich orcid: 0000-0002-9648-6919 - first_name: Lasse Lennart full_name: Wolf, Lasse Lennart id: '45027' last_name: Wolf orcid: 0000-0001-8893-2045 citation: ama: Lutsko C, Weich T, Wolf LL. Polyhedral bounds on the joint spectrum and temperedness of locally  symmetric spaces. Duke Math Journal . 2026;(to appear). apa: Lutsko, C., Weich, T., & Wolf, L. L. (2026). Polyhedral bounds on the joint spectrum and temperedness of locally  symmetric spaces. Duke Math. Journal , (to appear). bibtex: '@article{Lutsko_Weich_Wolf_2026, title={Polyhedral bounds on the joint spectrum and temperedness of locally  symmetric spaces}, volume={(to appear)}, journal={Duke Math. Journal }, author={Lutsko, Christopher and Weich, Tobias and Wolf, Lasse Lennart}, year={2026} }' chicago: Lutsko, Christopher, Tobias Weich, and Lasse Lennart Wolf. “Polyhedral Bounds on the Joint Spectrum and Temperedness of Locally  Symmetric Spaces.” Duke Math. Journal (to appear) (2026). ieee: C. Lutsko, T. Weich, and L. L. Wolf, “Polyhedral bounds on the joint spectrum and temperedness of locally  symmetric spaces,” Duke Math. Journal , vol. (to appear), 2026. mla: Lutsko, Christopher, et al. “Polyhedral Bounds on the Joint Spectrum and Temperedness of Locally  Symmetric Spaces.” Duke Math. Journal , vol. (to appear), 2026. short: C. Lutsko, T. Weich, L.L. Wolf, Duke Math. Journal (to appear) (2026). date_created: 2024-02-06T20:35:36Z date_updated: 2026-02-18T10:37:47Z department: - _id: '10' - _id: '623' - _id: '548' external_id: arxiv: - '2402.02530' language: - iso: eng publication: 'Duke Math. Journal ' status: public title: Polyhedral bounds on the joint spectrum and temperedness of locally symmetric spaces type: journal_article user_id: '49178' volume: (to appear) year: '2026' ... --- _id: '64678' abstract: - lang: eng text: "One of the major topics in the modern automotive industry is reducing emissions and increasing the mileage\r\nrange. To tackle this challenge, on the one hand, modifying the powertrain system is a possibility, and on the\r\nother hand, lightweight design offers various possibilities. Multi-Material Design (MMD) involves designing car\r\nbodies that combine different materials that require joining. Given the variety of materials, mechanical joining\r\nprocesses are preferred. Especially the current development of the Giga/Mega-casting process concerning\r\naluminium casting and the subsequent mechanical joining illustrates the challenges of this material group. In car\r\nproduction, aluminium castings are mainly made from aluminium-silicon (AlSi) alloys. Ultimately, the alloy\r\nsystem's insufficient ductility leads to crack initiation during mechanical joining. Cast parts are therefore often\r\nused in areas of the car body that are exposed to high-pressure loads. For example, self-piercing riveting (SPR) is\r\nused due to its high load-bearing capacity. In this study, improved joinability is demonstrated by influencing the\r\nmicrostructure through tailored solidification rates and a developed heat-treatment chain strategy adapted for\r\nhypoeutectic AlSi systems. Data on microstructure, mechanical, and joining properties are used to develop a\r\nsolidification-joining correlation for the SPR process across a range of Si contents and solidification rates. The\r\npurpose is to develop the ability to produce suitable aluminium castings with sufficient joinability, thereby\r\nimproving versatility." article_type: original author: - first_name: Moritz full_name: Neuser, Moritz id: '32340' last_name: Neuser - first_name: Pia Katharina full_name: Kaimann, Pia Katharina id: '44935' last_name: Kaimann - first_name: Ina full_name: Stratmann, Ina last_name: Stratmann - first_name: Mathias full_name: Bobbert, Mathias id: '7850' last_name: Bobbert - first_name: Johann Moritz Benedikt full_name: Klöckner, Johann Moritz Benedikt last_name: Klöckner - first_name: Moritz full_name: Mann, Moritz last_name: Mann - first_name: Kay-Peter full_name: Hoyer, Kay-Peter id: '48411' last_name: Hoyer - first_name: Gerson full_name: Meschut, Gerson id: '32056' last_name: Meschut orcid: 0000-0002-2763-1246 - first_name: Mirko full_name: Schaper, Mirko id: '43720' last_name: Schaper citation: ama: Neuser M, Kaimann PK, Stratmann I, et al. Solidification-joinability correlation of hypoeutectic aluminium casting alloys for self-piercing riveting (SPR). Journal of Manufacturing Processes. 2026;164. doi:https://doi.org/10.1016/j.jmapro.2026.02.040 apa: Neuser, M., Kaimann, P. K., Stratmann, I., Bobbert, M., Klöckner, J. M. B., Mann, M., Hoyer, K.-P., Meschut, G., & Schaper, M. (2026). Solidification-joinability correlation of hypoeutectic aluminium casting alloys for self-piercing riveting (SPR). Journal of Manufacturing Processes, 164. https://doi.org/10.1016/j.jmapro.2026.02.040 bibtex: '@article{Neuser_Kaimann_Stratmann_Bobbert_Klöckner_Mann_Hoyer_Meschut_Schaper_2026, title={Solidification-joinability correlation of hypoeutectic aluminium casting alloys for self-piercing riveting (SPR)}, volume={164}, DOI={https://doi.org/10.1016/j.jmapro.2026.02.040}, journal={Journal of Manufacturing Processes}, publisher={Elsevier}, author={Neuser, Moritz and Kaimann, Pia Katharina and Stratmann, Ina and Bobbert, Mathias and Klöckner, Johann Moritz Benedikt and Mann, Moritz and Hoyer, Kay-Peter and Meschut, Gerson and Schaper, Mirko}, year={2026} }' chicago: Neuser, Moritz, Pia Katharina Kaimann, Ina Stratmann, Mathias Bobbert, Johann Moritz Benedikt Klöckner, Moritz Mann, Kay-Peter Hoyer, Gerson Meschut, and Mirko Schaper. “Solidification-Joinability Correlation of Hypoeutectic Aluminium Casting Alloys for Self-Piercing Riveting (SPR).” Journal of Manufacturing Processes 164 (2026). https://doi.org/10.1016/j.jmapro.2026.02.040. ieee: 'M. Neuser et al., “Solidification-joinability correlation of hypoeutectic aluminium casting alloys for self-piercing riveting (SPR),” Journal of Manufacturing Processes, vol. 164, 2026, doi: https://doi.org/10.1016/j.jmapro.2026.02.040.' mla: Neuser, Moritz, et al. “Solidification-Joinability Correlation of Hypoeutectic Aluminium Casting Alloys for Self-Piercing Riveting (SPR).” Journal of Manufacturing Processes, vol. 164, Elsevier, 2026, doi:https://doi.org/10.1016/j.jmapro.2026.02.040. short: M. Neuser, P.K. Kaimann, I. Stratmann, M. Bobbert, J.M.B. Klöckner, M. Mann, K.-P. Hoyer, G. Meschut, M. Schaper, Journal of Manufacturing Processes 164 (2026). date_created: 2026-02-26T11:21:24Z date_updated: 2026-02-26T11:22:03Z department: - _id: '43' - _id: '158' - _id: '157' - _id: '321' doi: https://doi.org/10.1016/j.jmapro.2026.02.040 funded_apc: '1' intvolume: ' 164' keyword: - Mechanical joining - Aluminium - Self-piercing riveting - Casting - Microstructure - Joinability AlSi-alloys language: - iso: eng project: - _id: '131' name: TRR 285 - Project Area A - _id: '133' name: TRR 285 - Project Area C - _id: '136' name: TRR 285 - Subproject A02 - _id: '146' name: TRR 285 - Subproject C02 - _id: '130' name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten' publication: Journal of Manufacturing Processes publication_status: published publisher: Elsevier quality_controlled: '1' status: public title: Solidification-joinability correlation of hypoeutectic aluminium casting alloys for self-piercing riveting (SPR) type: journal_article user_id: '32340' volume: 164 year: '2026' ... --- _id: '63665' article_number: '104264' author: - first_name: Maik full_name: Gude, Maik last_name: Gude - first_name: Gerson full_name: Meschut, Gerson id: '32056' last_name: Meschut orcid: 0000-0002-2763-1246 - first_name: Wilko full_name: Flügge, Wilko last_name: Flügge - first_name: Linda full_name: Fröck, Linda last_name: Fröck - first_name: Christopher full_name: Wald, Christopher last_name: Wald - first_name: Vanessa full_name: Neßlinger, Vanessa last_name: Neßlinger - first_name: Karsten full_name: Dobrindt-Tittmann, Karsten last_name: Dobrindt-Tittmann - first_name: Juliane full_name: Troschitz, Juliane last_name: Troschitz - first_name: Fynn full_name: Neubert, Fynn last_name: Neubert - first_name: Martin full_name: Hofmann, Martin last_name: Hofmann - first_name: Richard full_name: Ostwald, Richard id: '106876' last_name: Ostwald orcid: 0000-0003-2147-8444 - first_name: Christian full_name: Mathiszik, Christian last_name: Mathiszik - first_name: Hans Christian full_name: Schmale, Hans Christian last_name: Schmale - first_name: Thomas full_name: Wallmersperger, Thomas last_name: Wallmersperger - first_name: Guido full_name: Grundmeier, Guido id: '194' last_name: Grundmeier citation: ama: 'Gude M, Meschut G, Flügge W, et al. Corrosion of adhesively bonded alloys in maritime environments: A review. International Journal of Adhesion and Adhesives. 2026;147. doi:10.1016/j.ijadhadh.2026.104264' apa: 'Gude, M., Meschut, G., Flügge, W., Fröck, L., Wald, C., Neßlinger, V., Dobrindt-Tittmann, K., Troschitz, J., Neubert, F., Hofmann, M., Ostwald, R., Mathiszik, C., Schmale, H. C., Wallmersperger, T., & Grundmeier, G. (2026). Corrosion of adhesively bonded alloys in maritime environments: A review. International Journal of Adhesion and Adhesives, 147, Article 104264. https://doi.org/10.1016/j.ijadhadh.2026.104264' bibtex: '@article{Gude_Meschut_Flügge_Fröck_Wald_Neßlinger_Dobrindt-Tittmann_Troschitz_Neubert_Hofmann_et al._2026, title={Corrosion of adhesively bonded alloys in maritime environments: A review}, volume={147}, DOI={10.1016/j.ijadhadh.2026.104264}, number={104264}, journal={International Journal of Adhesion and Adhesives}, publisher={Elsevier BV}, author={Gude, Maik and Meschut, Gerson and Flügge, Wilko and Fröck, Linda and Wald, Christopher and Neßlinger, Vanessa and Dobrindt-Tittmann, Karsten and Troschitz, Juliane and Neubert, Fynn and Hofmann, Martin and et al.}, year={2026} }' chicago: 'Gude, Maik, Gerson Meschut, Wilko Flügge, Linda Fröck, Christopher Wald, Vanessa Neßlinger, Karsten Dobrindt-Tittmann, et al. “Corrosion of Adhesively Bonded Alloys in Maritime Environments: A Review.” International Journal of Adhesion and Adhesives 147 (2026). https://doi.org/10.1016/j.ijadhadh.2026.104264.' ieee: 'M. Gude et al., “Corrosion of adhesively bonded alloys in maritime environments: A review,” International Journal of Adhesion and Adhesives, vol. 147, Art. no. 104264, 2026, doi: 10.1016/j.ijadhadh.2026.104264.' mla: 'Gude, Maik, et al. “Corrosion of Adhesively Bonded Alloys in Maritime Environments: A Review.” International Journal of Adhesion and Adhesives, vol. 147, 104264, Elsevier BV, 2026, doi:10.1016/j.ijadhadh.2026.104264.' short: M. Gude, G. Meschut, W. Flügge, L. Fröck, C. Wald, V. Neßlinger, K. Dobrindt-Tittmann, J. Troschitz, F. Neubert, M. Hofmann, R. Ostwald, C. Mathiszik, H.C. Schmale, T. Wallmersperger, G. Grundmeier, International Journal of Adhesion and Adhesives 147 (2026). date_created: 2026-01-20T09:06:03Z date_updated: 2026-03-04T11:32:09Z department: - _id: '9' - _id: '952' - _id: '321' doi: 10.1016/j.ijadhadh.2026.104264 intvolume: ' 147' language: - iso: eng publication: International Journal of Adhesion and Adhesives publication_identifier: issn: - 0143-7496 publication_status: published publisher: Elsevier BV quality_controlled: '1' status: public title: 'Corrosion of adhesively bonded alloys in maritime environments: A review' type: journal_article user_id: '85414' volume: 147 year: '2026' ... --- _id: '64864' abstract: - lang: eng text: Probing novel properties, arising from twisted interfaces, has traditionally relied on the stacking of exfoliated two-dimensional materials and the spontaneous formation of van der Waals bonds. So far, investigations involving intimate covalent or ionic bonds have not been a focus. Yet, we show here that an established technique, involving thermocompressional wafer bonding, works well for creating twisted non-van der Waals interfaces. We have successfully bonded z-cut lithium niobate single crystals to create ferroelectric oxide interfaces with strong polar discontinuities and have mapped the associated emergent interfacial conductivity. In some instances, a dramatic change in microstructure occurs, involving local dipolar switching. A twist-induced collapse in the capability of the system to effec8tively screen interfacial bound charge is implied. Importantly, this only occurs around specific moiré twist angles with sparse coincident lattices and associated short-range aperiodicity. In quasicrystals, aperiodicity is known to induce pseudo-bandgaps and we suspect a similar phenomenon here. article_number: '1842' article_type: original author: - first_name: Andrew full_name: Rogers, Andrew last_name: Rogers - first_name: Kristina full_name: Holsgrove, Kristina last_name: Holsgrove - first_name: Nils A. full_name: Schäfer, Nils A. last_name: Schäfer - first_name: Boris full_name: Koppitz, Boris last_name: Koppitz - first_name: Conor J. full_name: McCluskey, Conor J. last_name: McCluskey - first_name: Shivani full_name: Yedama, Shivani last_name: Yedama - first_name: Ronan full_name: Lynch, Ronan last_name: Lynch - first_name: Keelan full_name: Sloan, Keelan last_name: Sloan - first_name: Barry full_name: Porter, Barry last_name: Porter - first_name: Adam full_name: Sykes, Adam last_name: Sykes - first_name: Alex full_name: Catalan Daniels, Alex last_name: Catalan Daniels - first_name: Romualdo S. full_name: Silva, Romualdo S. last_name: Silva - first_name: Flavio Y. full_name: Bruno, Flavio Y. last_name: Bruno - first_name: Sam D. full_name: Seddon, Sam D. last_name: Seddon - first_name: Haidong full_name: Lu, Haidong last_name: Lu - first_name: Michael full_name: Rüsing, Michael id: '22501' last_name: Rüsing orcid: 0000-0003-4682-4577 - first_name: Christa full_name: Fink, Christa last_name: Fink - first_name: Philipp full_name: Fahler-Muenzer, Philipp last_name: Fahler-Muenzer - first_name: Sarah full_name: Fearn, Sarah last_name: Fearn - first_name: Sandrine E. M. full_name: Heutz, Sandrine E. M. last_name: Heutz - first_name: Marios full_name: Hadjimichael, Marios last_name: Hadjimichael - first_name: Quentin M. full_name: Ramasse, Quentin M. last_name: Ramasse - first_name: Marin full_name: Alexe, Marin last_name: Alexe - first_name: Amit full_name: Kumar, Amit last_name: Kumar - first_name: Raymond G. P. full_name: McQuaid, Raymond G. P. last_name: McQuaid - first_name: Alexei full_name: Gruverman, Alexei last_name: Gruverman - first_name: Simone full_name: Sanna, Simone last_name: Sanna - first_name: Lukas M. full_name: Eng, Lukas M. last_name: Eng - first_name: J. Marty full_name: Gregg, J. Marty last_name: Gregg citation: ama: Rogers A, Holsgrove K, Schäfer NA, et al. Polar discontinuities, emergent conductivity, and critical twist-angle-dependent behaviour at wafer-bonded ferroelectric interfaces. Nature Communications. 2026;17(1). doi:10.1038/s41467-026-68553-7 apa: Rogers, A., Holsgrove, K., Schäfer, N. A., Koppitz, B., McCluskey, C. J., Yedama, S., Lynch, R., Sloan, K., Porter, B., Sykes, A., Catalan Daniels, A., Silva, R. S., Bruno, F. Y., Seddon, S. D., Lu, H., Rüsing, M., Fink, C., Fahler-Muenzer, P., Fearn, S., … Gregg, J. M. (2026). Polar discontinuities, emergent conductivity, and critical twist-angle-dependent behaviour at wafer-bonded ferroelectric interfaces. Nature Communications, 17(1), Article 1842. https://doi.org/10.1038/s41467-026-68553-7 bibtex: '@article{Rogers_Holsgrove_Schäfer_Koppitz_McCluskey_Yedama_Lynch_Sloan_Porter_Sykes_et al._2026, title={Polar discontinuities, emergent conductivity, and critical twist-angle-dependent behaviour at wafer-bonded ferroelectric interfaces}, volume={17}, DOI={10.1038/s41467-026-68553-7}, number={11842}, journal={Nature Communications}, publisher={Springer Science and Business Media LLC}, author={Rogers, Andrew and Holsgrove, Kristina and Schäfer, Nils A. and Koppitz, Boris and McCluskey, Conor J. and Yedama, Shivani and Lynch, Ronan and Sloan, Keelan and Porter, Barry and Sykes, Adam and et al.}, year={2026} }' chicago: Rogers, Andrew, Kristina Holsgrove, Nils A. Schäfer, Boris Koppitz, Conor J. McCluskey, Shivani Yedama, Ronan Lynch, et al. “Polar Discontinuities, Emergent Conductivity, and Critical Twist-Angle-Dependent Behaviour at Wafer-Bonded Ferroelectric Interfaces.” Nature Communications 17, no. 1 (2026). https://doi.org/10.1038/s41467-026-68553-7. ieee: 'A. Rogers et al., “Polar discontinuities, emergent conductivity, and critical twist-angle-dependent behaviour at wafer-bonded ferroelectric interfaces,” Nature Communications, vol. 17, no. 1, Art. no. 1842, 2026, doi: 10.1038/s41467-026-68553-7.' mla: Rogers, Andrew, et al. “Polar Discontinuities, Emergent Conductivity, and Critical Twist-Angle-Dependent Behaviour at Wafer-Bonded Ferroelectric Interfaces.” Nature Communications, vol. 17, no. 1, 1842, Springer Science and Business Media LLC, 2026, doi:10.1038/s41467-026-68553-7. short: A. Rogers, K. Holsgrove, N.A. Schäfer, B. Koppitz, C.J. McCluskey, S. Yedama, R. Lynch, K. Sloan, B. Porter, A. Sykes, A. Catalan Daniels, R.S. Silva, F.Y. Bruno, S.D. Seddon, H. Lu, M. Rüsing, C. Fink, P. Fahler-Muenzer, S. Fearn, S.E.M. Heutz, M. Hadjimichael, Q.M. Ramasse, M. Alexe, A. Kumar, R.G.P. McQuaid, A. Gruverman, S. Sanna, L.M. Eng, J.M. Gregg, Nature Communications 17 (2026). date_created: 2026-03-08T09:20:13Z date_updated: 2026-03-08T09:22:25Z department: - _id: '15' - _id: '623' - _id: '288' doi: 10.1038/s41467-026-68553-7 intvolume: ' 17' issue: '1' language: - iso: eng main_file_link: - open_access: '1' url: https://www.nature.com/articles/s41467-026-68553-7 oa: '1' publication: Nature Communications publication_identifier: issn: - 2041-1723 publication_status: published publisher: Springer Science and Business Media LLC quality_controlled: '1' status: public title: Polar discontinuities, emergent conductivity, and critical twist-angle-dependent behaviour at wafer-bonded ferroelectric interfaces type: journal_article user_id: '22501' volume: 17 year: '2026' ... --- _id: '64873' abstract: - lang: eng text: Continuous flow catalysis utilizing gel-bound organocatalysts within a microfluidic reactor represents a compelling strategy in the realm of organic synthesis. In this study, a quinuclidine-based catalytic monomer (QMA) was synthesized to create polymer gel dots through the process of photopolymerization that serve as a support for the catalyst. The resulting gel-bound organocatalysts were assembled within a continuous microfluidic reactor to facilitate the Baylis–Hillman reaction between various aldehydes and acrylonitrile at a temperature of 50 °C. The conversion of the product was assessed using 1H NMR spectroscopy as an offline analytical method over a duration of 8 h. The findings indicated that highly reactive aldehydes achieved conversion rates exceeding 90%, in contrast to their less reactive counterparts. Furthermore, these results were juxtaposed with previously published data derived from alternative synthetic methodologies, revealing that the continuous microfluidic reactions employing integrated organocatalysts within polymer networks exhibited significantly higher conversions with reduced reaction times (8 h) at the same temperature (50 °C). Additionally, the influence of different geometries (round, triangular, and square) of the gel dots on catalytic activity was investigated, with round and square gel dots demonstrating slightly superior performance compared with triangular gel dots, attributed to their increased surface area. Moreover, an extended reaction period of 6 days was conducted using 4-bromobenzaldehyde and acrylonitrile, resulting in a conversion rate exceeding 70%, which remained stable for 5 days before experiencing a slight decline due to product accumulation on the gel dots. article_number: '14448' article_type: original author: - first_name: Naresh full_name: Killi, Naresh last_name: Killi - first_name: Amit full_name: Kumar, Amit last_name: Kumar - first_name: Leena full_name: Nebhani, Leena last_name: Nebhani - first_name: Franziska full_name: Obst, Franziska last_name: Obst - first_name: Andreas full_name: Richter, Andreas last_name: Richter - first_name: Bernhard full_name: Reineke Matsudo, Bernhard last_name: Reineke Matsudo - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 - first_name: Dirk full_name: Kuckling, Dirk id: '287' last_name: Kuckling citation: ama: Killi N, Kumar A, Nebhani L, et al. Integrating an Organocatalyst into a Polymeric Gel Framework for the Continuous Microflow Baylis–Hillman Reaction. ACS Omega. 2026;11(9). doi:10.1021/acsomega.5c09476 apa: Killi, N., Kumar, A., Nebhani, L., Obst, F., Richter, A., Reineke Matsudo, B., Zentgraf, T., & Kuckling, D. (2026). Integrating an Organocatalyst into a Polymeric Gel Framework for the Continuous Microflow Baylis–Hillman Reaction. ACS Omega, 11(9), Article 14448. https://doi.org/10.1021/acsomega.5c09476 bibtex: '@article{Killi_Kumar_Nebhani_Obst_Richter_Reineke Matsudo_Zentgraf_Kuckling_2026, title={Integrating an Organocatalyst into a Polymeric Gel Framework for the Continuous Microflow Baylis–Hillman Reaction}, volume={11}, DOI={10.1021/acsomega.5c09476}, number={914448}, journal={ACS Omega}, publisher={American Chemical Society (ACS)}, author={Killi, Naresh and Kumar, Amit and Nebhani, Leena and Obst, Franziska and Richter, Andreas and Reineke Matsudo, Bernhard and Zentgraf, Thomas and Kuckling, Dirk}, year={2026} }' chicago: Killi, Naresh, Amit Kumar, Leena Nebhani, Franziska Obst, Andreas Richter, Bernhard Reineke Matsudo, Thomas Zentgraf, and Dirk Kuckling. “Integrating an Organocatalyst into a Polymeric Gel Framework for the Continuous Microflow Baylis–Hillman Reaction.” ACS Omega 11, no. 9 (2026). https://doi.org/10.1021/acsomega.5c09476. ieee: 'N. Killi et al., “Integrating an Organocatalyst into a Polymeric Gel Framework for the Continuous Microflow Baylis–Hillman Reaction,” ACS Omega, vol. 11, no. 9, Art. no. 14448, 2026, doi: 10.1021/acsomega.5c09476.' mla: Killi, Naresh, et al. “Integrating an Organocatalyst into a Polymeric Gel Framework for the Continuous Microflow Baylis–Hillman Reaction.” ACS Omega, vol. 11, no. 9, 14448, American Chemical Society (ACS), 2026, doi:10.1021/acsomega.5c09476. short: N. Killi, A. Kumar, L. Nebhani, F. Obst, A. Richter, B. Reineke Matsudo, T. Zentgraf, D. Kuckling, ACS Omega 11 (2026). date_created: 2026-03-10T08:23:43Z date_updated: 2026-03-10T08:27:15Z department: - _id: '15' - _id: '230' - _id: '289' - _id: '623' - _id: '2' - _id: '311' doi: 10.1021/acsomega.5c09476 intvolume: ' 11' issue: '9' language: - iso: eng main_file_link: - open_access: '1' url: https://pubs.acs.org/doi/abs/10.1021/acsomega.5c09476 oa: '1' publication: ACS Omega publication_identifier: issn: - 2470-1343 - 2470-1343 publication_status: published publisher: American Chemical Society (ACS) quality_controlled: '1' status: public title: Integrating an Organocatalyst into a Polymeric Gel Framework for the Continuous Microflow Baylis–Hillman Reaction type: journal_article user_id: '30525' volume: 11 year: '2026' ... --- _id: '61523' abstract: - lang: eng text: AbstractMetasurface holography offers a powerful approach for manipulating wavefronts at the nano and micro scale. Extensive research has been conducted to enhance the multiplexing capacity for diverse wavefronts. However, the independence of multiplexed channels is fundamentally restricted in techniques using single‐layer metasurfaces, resulting in unavoidable crosstalk and the need for post‐filtering of the output wavefronts. Here, a universal wavefront multiplexing concept is presented based on non‐injective transformation. By employing joint optimization on two metasurfaces, different channels can be independently designed without any constraints on the output wavefronts. To validate this approach, ultra‐compact orbital angular momentum (OAM) sorters are designed. In these experiments, the output beams from different channels can be independently mapped to 2D positions with high fineness. In another application of wavefront‐multiplexed holography, 10‐channel multiplexing is experimentally achieved with minimal crosstalk and without the need for post‐processing. These results demonstrate the independence between channels enabled by the non‐injective transformation in the method. The precise wavefront control and high multiplexing capacity underscore its potential for scalable wavefront manipulation devices. article_number: e11823 article_type: original author: - first_name: Xiao full_name: Jin, Xiao last_name: Jin - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 citation: ama: Jin X, Zentgraf T. Independent Wavefront Multiplexing with Metasurfaces via Non‐Injective Transformation. Advanced Materials. 2026;38. doi:10.1002/adma.202511823 apa: Jin, X., & Zentgraf, T. (2026). Independent Wavefront Multiplexing with Metasurfaces via Non‐Injective Transformation. Advanced Materials, 38, Article e11823. https://doi.org/10.1002/adma.202511823 bibtex: '@article{Jin_Zentgraf_2026, title={Independent Wavefront Multiplexing with Metasurfaces via Non‐Injective Transformation}, volume={38}, DOI={10.1002/adma.202511823}, number={e11823}, journal={Advanced Materials}, publisher={Wiley}, author={Jin, Xiao and Zentgraf, Thomas}, year={2026} }' chicago: Jin, Xiao, and Thomas Zentgraf. “Independent Wavefront Multiplexing with Metasurfaces via Non‐Injective Transformation.” Advanced Materials 38 (2026). https://doi.org/10.1002/adma.202511823. ieee: 'X. Jin and T. Zentgraf, “Independent Wavefront Multiplexing with Metasurfaces via Non‐Injective Transformation,” Advanced Materials, vol. 38, Art. no. e11823, 2026, doi: 10.1002/adma.202511823.' mla: Jin, Xiao, and Thomas Zentgraf. “Independent Wavefront Multiplexing with Metasurfaces via Non‐Injective Transformation.” Advanced Materials, vol. 38, e11823, Wiley, 2026, doi:10.1002/adma.202511823. short: X. Jin, T. Zentgraf, Advanced Materials 38 (2026). date_created: 2025-10-06T05:42:21Z date_updated: 2026-03-10T08:32:37Z department: - _id: '15' - _id: '230' - _id: '289' - _id: '623' doi: 10.1002/adma.202511823 intvolume: ' 38' language: - iso: eng main_file_link: - open_access: '1' url: https://advanced.onlinelibrary.wiley.com/doi/10.1002/adma.202511823 oa: '1' project: - _id: '53' name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen' - _id: '54' name: TRR 142 - Project Area A - _id: '55' name: TRR 142 - Project Area B - _id: '65' name: 'TRR 142; TP A08: Nichtlineare Kopplung von Zwischenschicht-Exzitonen in van der Waals-Heterostrukturen an plasmonische und dielektrische Nanokavitäten' - _id: '170' name: 'TRR 142; TP B09: Effiziente Erzeugung mit maßgeschneiderter optischer Phaselage der zweiten Harmonischen mittels Quasi-gebundener Zustände in GaAs Metaoberflächen' publication: Advanced Materials publication_identifier: issn: - 0935-9648 - 1521-4095 publication_status: published publisher: Wiley quality_controlled: '1' status: public title: Independent Wavefront Multiplexing with Metasurfaces via Non‐Injective Transformation type: journal_article user_id: '30525' volume: 38 year: '2026' ... --- _id: '62907' author: - first_name: Christoph full_name: Fröhleke, Christoph last_name: Fröhleke - first_name: Sebastian full_name: Habig, Sebastian last_name: Habig - first_name: Sabine full_name: Fechner, Sabine id: '54823' last_name: Fechner orcid: 0000-0001-5645-5870 citation: ama: 'Fröhleke C, Habig S, Fechner S. Erfassung handlungsorientierter Kompetenzen im Chemiepraktikum - Inwiefern kann die Performanz von Lehramtsstudierenden bei Prozessentscheidungen diagnostiziert werden? In: Vogelsang C, Grotegut L, Bruns J, Riese J, Fechner S, eds. Handlungsorientierung in Der Ausbildung von Lehrkräften Und Pädagogischen Fachkräften. 2nd ed. Waxmann.' apa: Fröhleke, C., Habig, S., & Fechner, S. (n.d.). Erfassung handlungsorientierter Kompetenzen im Chemiepraktikum - Inwiefern kann die Performanz von Lehramtsstudierenden bei Prozessentscheidungen diagnostiziert werden? In C. Vogelsang, L. Grotegut, J. Bruns, J. Riese, & S. Fechner (Eds.), Handlungsorientierung in der Ausbildung von Lehrkräften und pädagogischen Fachkräften (2nd ed.). Waxmann. bibtex: '@inbook{Fröhleke_Habig_Fechner, place={Münster}, edition={2}, title={Erfassung handlungsorientierter Kompetenzen im Chemiepraktikum - Inwiefern kann die Performanz von Lehramtsstudierenden bei Prozessentscheidungen diagnostiziert werden?}, booktitle={Handlungsorientierung in der Ausbildung von Lehrkräften und pädagogischen Fachkräften}, publisher={Waxmann}, author={Fröhleke, Christoph and Habig, Sebastian and Fechner, Sabine}, editor={Vogelsang, Christoph and Grotegut, Lea and Bruns, Julia and Riese, Josef and Fechner, Sabine} }' chicago: 'Fröhleke, Christoph, Sebastian Habig, and Sabine Fechner. “Erfassung Handlungsorientierter Kompetenzen Im Chemiepraktikum - Inwiefern Kann Die Performanz von Lehramtsstudierenden Bei Prozessentscheidungen Diagnostiziert Werden?” In Handlungsorientierung in Der Ausbildung von Lehrkräften Und Pädagogischen Fachkräften, edited by Christoph Vogelsang, Lea Grotegut, Julia Bruns, Josef Riese, and Sabine Fechner, 2nd ed. Münster: Waxmann, n.d.' ieee: 'C. Fröhleke, S. Habig, and S. Fechner, “Erfassung handlungsorientierter Kompetenzen im Chemiepraktikum - Inwiefern kann die Performanz von Lehramtsstudierenden bei Prozessentscheidungen diagnostiziert werden?,” in Handlungsorientierung in der Ausbildung von Lehrkräften und pädagogischen Fachkräften, 2nd ed., C. Vogelsang, L. Grotegut, J. Bruns, J. Riese, and S. Fechner, Eds. Münster: Waxmann.' mla: Fröhleke, Christoph, et al. “Erfassung Handlungsorientierter Kompetenzen Im Chemiepraktikum - Inwiefern Kann Die Performanz von Lehramtsstudierenden Bei Prozessentscheidungen Diagnostiziert Werden?” Handlungsorientierung in Der Ausbildung von Lehrkräften Und Pädagogischen Fachkräften, edited by Christoph Vogelsang et al., 2nd ed., Waxmann. short: 'C. Fröhleke, S. Habig, S. Fechner, in: C. Vogelsang, L. Grotegut, J. Bruns, J. Riese, S. Fechner (Eds.), Handlungsorientierung in Der Ausbildung von Lehrkräften Und Pädagogischen Fachkräften, 2nd ed., Waxmann, Münster, n.d.' date_created: 2025-12-04T18:39:55Z date_updated: 2025-12-04T18:40:07Z department: - _id: '386' - _id: '33' edition: '2' editor: - first_name: Christoph full_name: Vogelsang, Christoph last_name: Vogelsang - first_name: Lea full_name: Grotegut, Lea last_name: Grotegut - first_name: Julia full_name: Bruns, Julia last_name: Bruns - first_name: 'Josef ' full_name: 'Riese, Josef ' last_name: Riese - first_name: Sabine full_name: Fechner, Sabine last_name: Fechner language: - iso: eng place: Münster project: - _id: '1387' name: DigiSelF - Digitalisierung als Herausforderung und Innovation in der Hochschullehre publication: Handlungsorientierung in der Ausbildung von Lehrkräften und pädagogischen Fachkräften publication_status: inpress publisher: Waxmann quality_controlled: '1' status: public title: Erfassung handlungsorientierter Kompetenzen im Chemiepraktikum - Inwiefern kann die Performanz von Lehramtsstudierenden bei Prozessentscheidungen diagnostiziert werden? type: book_chapter user_id: '54823' year: '2026' ... --- _id: '62821' citation: ama: Vogelsang C, Grotegut L, Bruns J, Riese J, Fechner S, eds. Handlungsorientierung in Der Ausbildung von Lehrkräften Und Pädagogischen Fachkräften. Vol 2. Waxmann apa: Vogelsang, C., Grotegut, L., Bruns, J., Riese, J., & Fechner, S. (Eds.). (n.d.). Handlungsorientierung in der Ausbildung von Lehrkräften und pädagogischen Fachkräften (Vol. 2). Waxmann. bibtex: '@book{Vogelsang_Grotegut_Bruns_Riese_Fechner, place={Münster}, series={Paderborner Beiträge zur Bildungsforschung und Lehrkräftebildung}, title={Handlungsorientierung in der Ausbildung von Lehrkräften und pädagogischen Fachkräften}, volume={2}, publisher={Waxmann}, collection={Paderborner Beiträge zur Bildungsforschung und Lehrkräftebildung} }' chicago: 'Vogelsang, Christoph, Lea Grotegut, Julia Bruns, Josef Riese, and Sabine Fechner, eds. Handlungsorientierung in Der Ausbildung von Lehrkräften Und Pädagogischen Fachkräften. Vol. 2. Paderborner Beiträge Zur Bildungsforschung Und Lehrkräftebildung. Münster: Waxmann, n.d.' ieee: 'C. Vogelsang, L. Grotegut, J. Bruns, J. Riese, and S. Fechner, Eds., Handlungsorientierung in der Ausbildung von Lehrkräften und pädagogischen Fachkräften, vol. 2. Münster: Waxmann.' mla: Vogelsang, Christoph, et al., editors. Handlungsorientierung in Der Ausbildung von Lehrkräften Und Pädagogischen Fachkräften. Waxmann. short: C. Vogelsang, L. Grotegut, J. Bruns, J. Riese, S. Fechner, eds., Handlungsorientierung in Der Ausbildung von Lehrkräften Und Pädagogischen Fachkräften, Waxmann, Münster, n.d. date_created: 2025-12-03T21:25:03Z date_updated: 2025-12-04T18:34:53Z department: - _id: '33' editor: - first_name: Christoph full_name: Vogelsang, Christoph id: '4245' last_name: Vogelsang orcid: 0000-0002-5804-1855 - first_name: Lea full_name: Grotegut, Lea id: '34280' last_name: Grotegut - first_name: Julia full_name: Bruns, Julia id: '72183' last_name: Bruns orcid: https://orcid.org/0000-0002-6604-5864 - first_name: Josef full_name: Riese, Josef id: '429' last_name: Riese orcid: 0000-0003-2927-2619 - first_name: Sabine full_name: Fechner, Sabine id: '54823' last_name: Fechner orcid: 0000-0001-5645-5870 intvolume: ' 2' language: - iso: eng place: Münster publication_status: inpress publisher: Waxmann quality_controlled: '1' series_title: Paderborner Beiträge zur Bildungsforschung und Lehrkräftebildung status: public title: Handlungsorientierung in der Ausbildung von Lehrkräften und pädagogischen Fachkräften type: book_editor user_id: '54823' volume: 2 year: '2026' ... --- _id: '62947' author: - first_name: Rebecca full_name: Grandrath, Rebecca last_name: Grandrath - first_name: Soraya full_name: Cornelius, Soraya last_name: Cornelius - first_name: Pascal full_name: Pollmeier, Pascal id: '44191' last_name: Pollmeier - first_name: Sabine full_name: Fechner, Sabine id: '54823' last_name: Fechner orcid: 0000-0001-5645-5870 - first_name: Claudia full_name: Bohrmann-Linde, Claudia last_name: Bohrmann-Linde - first_name: Isabel full_name: Rubner, Isabel last_name: Rubner citation: ama: 'Grandrath R, Cornelius S, Pollmeier P, Fechner S, Bohrmann-Linde C, Rubner I. Beiträge des ComeNet Chemie zur digitalen Transformation des Chemieunterrichts. In: Sammelband MINT in der Buchreihe Kompetenzzentren für digital gestützte Schul- und Unterrichtsentwicklung.' apa: Grandrath, R., Cornelius, S., Pollmeier, P., Fechner, S., Bohrmann-Linde, C., & Rubner, I. (n.d.). Beiträge des ComeNet Chemie zur digitalen Transformation des Chemieunterrichts. In Sammelband MINT in der Buchreihe Kompetenzzentren für digital gestützte Schul- und Unterrichtsentwicklung. bibtex: '@inbook{Grandrath_Cornelius_Pollmeier_Fechner_Bohrmann-Linde_Rubner, title={Beiträge des ComeNet Chemie zur digitalen Transformation des Chemieunterrichts}, booktitle={Sammelband MINT in der Buchreihe Kompetenzzentren für digital gestützte Schul- und Unterrichtsentwicklung}, author={Grandrath, Rebecca and Cornelius, Soraya and Pollmeier, Pascal and Fechner, Sabine and Bohrmann-Linde, Claudia and Rubner, Isabel} }' chicago: Grandrath, Rebecca, Soraya Cornelius, Pascal Pollmeier, Sabine Fechner, Claudia Bohrmann-Linde, and Isabel Rubner. “Beiträge des ComeNet Chemie zur digitalen Transformation des Chemieunterrichts.” In Sammelband MINT in der Buchreihe Kompetenzzentren für digital gestützte Schul- und Unterrichtsentwicklung, n.d. ieee: R. Grandrath, S. Cornelius, P. Pollmeier, S. Fechner, C. Bohrmann-Linde, and I. Rubner, “Beiträge des ComeNet Chemie zur digitalen Transformation des Chemieunterrichts,” in Sammelband MINT in der Buchreihe Kompetenzzentren für digital gestützte Schul- und Unterrichtsentwicklung, . mla: Grandrath, Rebecca, et al. “Beiträge des ComeNet Chemie zur digitalen Transformation des Chemieunterrichts.” Sammelband MINT in der Buchreihe Kompetenzzentren für digital gestützte Schul- und Unterrichtsentwicklung. short: 'R. Grandrath, S. Cornelius, P. Pollmeier, S. Fechner, C. Bohrmann-Linde, I. Rubner, in: Sammelband MINT in der Buchreihe Kompetenzzentren für digital gestützte Schul- und Unterrichtsentwicklung, n.d.' date_created: 2025-12-08T08:54:19Z date_updated: 2025-12-11T13:28:42Z department: - _id: '386' - _id: '33' keyword: - Bildung für nachhaltige Entwicklung - BNE - Nachhaltigkeit - Digitalisierung - Digital - KI - Künstliche Intelligenz - Chemie - Chemieunterricht language: - iso: ger project: - _id: '641' name: ComeMINT-Netzwerk. fortbilden durch vernetzen – vernetzen durch fortbilden. Gelingensbedingungen adaptiver MINT-Fortbildungsmodule in Community Networks. publication: Sammelband MINT in der Buchreihe Kompetenzzentren für digital gestützte Schul- und Unterrichtsentwicklung publication_status: inpress quality_controlled: '1' status: public title: Beiträge des ComeNet Chemie zur digitalen Transformation des Chemieunterrichts type: book_chapter user_id: '54823' year: '2026' ... --- _id: '62885' author: - first_name: Malin full_name: Osnabrügge, Malin id: '79748' last_name: Osnabrügge - first_name: Claudia full_name: Tenberge, Claudia id: '67302' last_name: Tenberge - first_name: Sabine full_name: Fechner, Sabine id: '54823' last_name: Fechner orcid: 0000-0001-5645-5870 citation: ama: Osnabrügge M, Tenberge C, Fechner S. Artificial Intelligence in primary science and technology education with a focus on implementation of AI in learning context – Results of a Scoping Review. apa: Osnabrügge, M., Tenberge, C., & Fechner, S. (n.d.). Artificial Intelligence in primary science and technology education with a focus on implementation of AI in learning context – Results of a Scoping Review. Pupils’ Attitudes Towards Technology (PATT), Norrköping, Sweden. bibtex: '@inproceedings{Osnabrügge_Tenberge_Fechner, title={Artificial Intelligence in primary science and technology education with a focus on implementation of AI in learning context – Results of a Scoping Review}, author={Osnabrügge, Malin and Tenberge, Claudia and Fechner, Sabine} }' chicago: Osnabrügge, Malin, Claudia Tenberge, and Sabine Fechner. “Artificial Intelligence in Primary Science and Technology Education with a Focus on Implementation of AI in Learning Context – Results of a Scoping Review,” n.d. ieee: M. Osnabrügge, C. Tenberge, and S. Fechner, “Artificial Intelligence in primary science and technology education with a focus on implementation of AI in learning context – Results of a Scoping Review,” presented at the Pupils’ Attitudes Towards Technology (PATT), Norrköping, Sweden. mla: Osnabrügge, Malin, et al. Artificial Intelligence in Primary Science and Technology Education with a Focus on Implementation of AI in Learning Context – Results of a Scoping Review. short: 'M. Osnabrügge, C. Tenberge, S. Fechner, in: n.d.' conference: end_date: 2026-06-18 location: Norrköping, Sweden name: Pupils' Attitudes Towards Technology (PATT) start_date: 2026-06-15 date_created: 2025-12-04T14:12:38Z date_updated: 2025-12-13T23:56:03Z department: - _id: '386' - _id: '588' - _id: '33' keyword: - Artificial intelligence - primary education - science and technology education language: - iso: eng publication_status: draft quality_controlled: '1' status: public title: Artificial Intelligence in primary science and technology education with a focus on implementation of AI in learning context – Results of a Scoping Review type: conference user_id: '54823' year: '2026' ... --- _id: '63531' author: - first_name: Siddharth full_name: Doshi, Siddharth last_name: Doshi - first_name: Nicholas Alexander full_name: Güsken, Nicholas Alexander id: '112030' last_name: Güsken orcid: 0000-0002-4816-0666 - first_name: Gerwin full_name: Dijk, Gerwin last_name: Dijk - first_name: Johan full_name: Carlström, Johan last_name: Carlström - first_name: Jennifer E. full_name: Ortiz-Cárdenas, Jennifer E. last_name: Ortiz-Cárdenas - first_name: Peter full_name: Suzuki, Peter last_name: Suzuki - first_name: Bohan full_name: Li, Bohan last_name: Li - first_name: Polly M. full_name: Fordyce, Polly M. last_name: Fordyce - first_name: Alberto full_name: Salleo, Alberto last_name: Salleo - first_name: Nicholas A. full_name: Melosh, Nicholas A. last_name: Melosh - first_name: Mark L. full_name: Brongersma, Mark L. last_name: Brongersma citation: ama: Doshi S, Güsken NA, Dijk G, et al. Soft photonic skins with dynamic texture and colour control. Nature. 2026;649(8096):345-352. doi:10.1038/s41586-025-09948-2 apa: Doshi, S., Güsken, N. A., Dijk, G., Carlström, J., Ortiz-Cárdenas, J. E., Suzuki, P., Li, B., Fordyce, P. M., Salleo, A., Melosh, N. A., & Brongersma, M. L. (2026). Soft photonic skins with dynamic texture and colour control. Nature, 649(8096), 345–352. https://doi.org/10.1038/s41586-025-09948-2 bibtex: '@article{Doshi_Güsken_Dijk_Carlström_Ortiz-Cárdenas_Suzuki_Li_Fordyce_Salleo_Melosh_et al._2026, title={Soft photonic skins with dynamic texture and colour control}, volume={649}, DOI={10.1038/s41586-025-09948-2}, number={8096}, journal={Nature}, publisher={Springer Science and Business Media LLC}, author={Doshi, Siddharth and Güsken, Nicholas Alexander and Dijk, Gerwin and Carlström, Johan and Ortiz-Cárdenas, Jennifer E. and Suzuki, Peter and Li, Bohan and Fordyce, Polly M. and Salleo, Alberto and Melosh, Nicholas A. and et al.}, year={2026}, pages={345–352} }' chicago: 'Doshi, Siddharth, Nicholas Alexander Güsken, Gerwin Dijk, Johan Carlström, Jennifer E. Ortiz-Cárdenas, Peter Suzuki, Bohan Li, et al. “Soft Photonic Skins with Dynamic Texture and Colour Control.” Nature 649, no. 8096 (2026): 345–52. https://doi.org/10.1038/s41586-025-09948-2.' ieee: 'S. Doshi et al., “Soft photonic skins with dynamic texture and colour control,” Nature, vol. 649, no. 8096, pp. 345–352, 2026, doi: 10.1038/s41586-025-09948-2.' mla: Doshi, Siddharth, et al. “Soft Photonic Skins with Dynamic Texture and Colour Control.” Nature, vol. 649, no. 8096, Springer Science and Business Media LLC, 2026, pp. 345–52, doi:10.1038/s41586-025-09948-2. short: S. Doshi, N.A. Güsken, G. Dijk, J. Carlström, J.E. Ortiz-Cárdenas, P. Suzuki, B. Li, P.M. Fordyce, A. Salleo, N.A. Melosh, M.L. Brongersma, Nature 649 (2026) 345–352. date_created: 2026-01-08T12:55:30Z date_updated: 2026-01-08T13:22:16Z department: - _id: '623' - _id: '15' - _id: '230' doi: 10.1038/s41586-025-09948-2 intvolume: ' 649' issue: '8096' language: - iso: eng page: 345-352 publication: Nature publication_identifier: issn: - 0028-0836 - 1476-4687 publication_status: published publisher: Springer Science and Business Media LLC status: public title: Soft photonic skins with dynamic texture and colour control type: journal_article user_id: '112030' volume: 649 year: '2026' ... --- _id: '63532' abstract: - lang: eng text: Room-temperature lasing is a key milestone in the development of miniaturized optoelectronic and photonic devices. We present a simple approach to synthesize phase-pure quasi-2D layered tin perovskite nanowires with varying quantum well thicknesses (n = 1 to 4). By incorporating a new organic spacer capable of forming a hydrogen-bonded organic framework, this method promoted anisotropic crystal growth and enhanced lattice rigidity. Furthermore, introducing molecular intercalants enabled controlled crystallization into well-defined nanowires that function as Fabry–Pérot cavities. Cavities made from n = 2 to 4 perovskites support efficient and robust near-infrared, room-temperature optically pumped lasing with the threshold as low as 75.8 μJ/cm2, cavity quality factor over 3000, and negligible degradation over 106 pulses. A cleaved coupled nanolaser was fabricated as a proof-of-concept device for photonic applications. article_type: original author: - first_name: Jeong Hui full_name: Kim, Jeong Hui last_name: Kim - first_name: Jeffrey full_name: Simon, Jeffrey last_name: Simon - first_name: Wenhao full_name: Shao, Wenhao last_name: Shao - first_name: Zhichen full_name: Nian, Zhichen last_name: Nian - first_name: Hanjun full_name: Yang, Hanjun last_name: Yang - first_name: Peigang full_name: Chen, Peigang last_name: Chen - first_name: Brandon full_name: Triplett, Brandon last_name: Triplett - first_name: Zhixu full_name: Li, Zhixu last_name: Li - first_name: Pengfei full_name: Wu, Pengfei last_name: Wu - first_name: Yuheng full_name: Chen, Yuheng last_name: Chen - first_name: Henna full_name: Farheen, Henna id: '53444' last_name: Farheen orcid: 0000-0001-7730-3489 - first_name: Karthik full_name: Pagadala, Karthik last_name: Pagadala - first_name: Kyu Ri full_name: Choi, Kyu Ri last_name: Choi - first_name: Colton B. full_name: Fruhling, Colton B. last_name: Fruhling - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 - first_name: Alexandra full_name: Boltasseva, Alexandra last_name: Boltasseva - first_name: Brett M. full_name: Savoie, Brett M. last_name: Savoie - first_name: Vladimir M. full_name: Shalaev, Vladimir M. last_name: Shalaev - first_name: Letian full_name: Dou, Letian last_name: Dou citation: ama: Kim JH, Simon J, Shao W, et al. Hydrogen-Bonded Organic Framework Enables Phase-Pure Layered Tin Perovskite Nanowires for Room-Temperature Lasing. Journal of the American Chemical Society. Published online 2026:jacs.5c14431. doi:10.1021/jacs.5c14431 apa: Kim, J. H., Simon, J., Shao, W., Nian, Z., Yang, H., Chen, P., Triplett, B., Li, Z., Wu, P., Chen, Y., Farheen, H., Pagadala, K., Choi, K. R., Fruhling, C. B., Förstner, J., Boltasseva, A., Savoie, B. M., Shalaev, V. M., & Dou, L. (2026). Hydrogen-Bonded Organic Framework Enables Phase-Pure Layered Tin Perovskite Nanowires for Room-Temperature Lasing. Journal of the American Chemical Society, jacs.5c14431. https://doi.org/10.1021/jacs.5c14431 bibtex: '@article{Kim_Simon_Shao_Nian_Yang_Chen_Triplett_Li_Wu_Chen_et al._2026, title={Hydrogen-Bonded Organic Framework Enables Phase-Pure Layered Tin Perovskite Nanowires for Room-Temperature Lasing}, DOI={10.1021/jacs.5c14431}, journal={Journal of the American Chemical Society}, publisher={American Chemical Society (ACS)}, author={Kim, Jeong Hui and Simon, Jeffrey and Shao, Wenhao and Nian, Zhichen and Yang, Hanjun and Chen, Peigang and Triplett, Brandon and Li, Zhixu and Wu, Pengfei and Chen, Yuheng and et al.}, year={2026}, pages={jacs.5c14431} }' chicago: Kim, Jeong Hui, Jeffrey Simon, Wenhao Shao, Zhichen Nian, Hanjun Yang, Peigang Chen, Brandon Triplett, et al. “Hydrogen-Bonded Organic Framework Enables Phase-Pure Layered Tin Perovskite Nanowires for Room-Temperature Lasing.” Journal of the American Chemical Society, 2026, jacs.5c14431. https://doi.org/10.1021/jacs.5c14431. ieee: 'J. H. Kim et al., “Hydrogen-Bonded Organic Framework Enables Phase-Pure Layered Tin Perovskite Nanowires for Room-Temperature Lasing,” Journal of the American Chemical Society, p. jacs.5c14431, 2026, doi: 10.1021/jacs.5c14431.' mla: Kim, Jeong Hui, et al. “Hydrogen-Bonded Organic Framework Enables Phase-Pure Layered Tin Perovskite Nanowires for Room-Temperature Lasing.” Journal of the American Chemical Society, American Chemical Society (ACS), 2026, p. jacs.5c14431, doi:10.1021/jacs.5c14431. short: J.H. Kim, J. Simon, W. Shao, Z. Nian, H. Yang, P. Chen, B. Triplett, Z. Li, P. Wu, Y. Chen, H. Farheen, K. Pagadala, K.R. Choi, C.B. Fruhling, J. Förstner, A. Boltasseva, B.M. Savoie, V.M. Shalaev, L. Dou, Journal of the American Chemical Society (2026) jacs.5c14431. date_created: 2026-01-08T20:48:26Z date_updated: 2026-01-08T20:54:59Z ddc: - '530' department: - _id: '61' - _id: '623' doi: 10.1021/jacs.5c14431 file: - access_level: closed content_type: application/pdf creator: fossie date_created: 2026-01-08T20:51:12Z date_updated: 2026-01-08T20:51:12Z file_id: '63533' file_name: 2026-01 Jeong-Hui-Kim - JACS - Hydrogen-Bonded Organic Framework Enables Phase-Pure Layered Tin Perovskite Nanowires for Room-Temperature Lasing (with Purdue).pdf file_size: 5453427 relation: main_file success: 1 file_date_updated: 2026-01-08T20:51:12Z has_accepted_license: '1' keyword: - tet_topic_opticalantenna language: - iso: eng page: jacs.5c14431 publication: Journal of the American Chemical Society publication_identifier: issn: - 0002-7863 - 1520-5126 publication_status: published publisher: American Chemical Society (ACS) status: public title: Hydrogen-Bonded Organic Framework Enables Phase-Pure Layered Tin Perovskite Nanowires for Room-Temperature Lasing type: journal_article user_id: '158' year: '2026' ... --- _id: '64877' author: - first_name: Behnood full_name: Taheri, Behnood last_name: Taheri - first_name: Denis full_name: Kopylov, Denis id: '98502' last_name: Kopylov - first_name: Manfred full_name: Hammer, Manfred id: '48077' last_name: Hammer orcid: 0000-0002-6331-9348 - first_name: Torsten full_name: Meier, Torsten id: '344' last_name: Meier orcid: 0000-0001-8864-2072 - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 - first_name: Polina R. full_name: Sharapova, Polina R. id: '60286' last_name: Sharapova citation: ama: Taheri B, Kopylov D, Hammer M, Meier T, Förstner J, Sharapova PR. Gain-induced spectral non-degeneracy in type-II parametric down-conversion. arXiv. Published online 2026. doi:10.48550/ARXIV.2603.01656 apa: Taheri, B., Kopylov, D., Hammer, M., Meier, T., Förstner, J., & Sharapova, P. R. (2026). Gain-induced spectral non-degeneracy in type-II parametric down-conversion. ArXiv. https://doi.org/10.48550/ARXIV.2603.01656 bibtex: '@article{Taheri_Kopylov_Hammer_Meier_Förstner_Sharapova_2026, title={Gain-induced spectral non-degeneracy in type-II parametric down-conversion}, DOI={10.48550/ARXIV.2603.01656}, journal={arXiv}, author={Taheri, Behnood and Kopylov, Denis and Hammer, Manfred and Meier, Torsten and Förstner, Jens and Sharapova, Polina R.}, year={2026} }' chicago: Taheri, Behnood, Denis Kopylov, Manfred Hammer, Torsten Meier, Jens Förstner, and Polina R. Sharapova. “Gain-Induced Spectral Non-Degeneracy in Type-II Parametric down-Conversion.” ArXiv, 2026. https://doi.org/10.48550/ARXIV.2603.01656. ieee: 'B. Taheri, D. Kopylov, M. Hammer, T. Meier, J. Förstner, and P. R. Sharapova, “Gain-induced spectral non-degeneracy in type-II parametric down-conversion,” arXiv, 2026, doi: 10.48550/ARXIV.2603.01656.' mla: Taheri, Behnood, et al. “Gain-Induced Spectral Non-Degeneracy in Type-II Parametric down-Conversion.” ArXiv, 2026, doi:10.48550/ARXIV.2603.01656. short: B. Taheri, D. Kopylov, M. Hammer, T. Meier, J. Förstner, P.R. Sharapova, ArXiv (2026). date_created: 2026-03-10T15:37:22Z date_updated: 2026-03-10T15:41:18Z department: - _id: '15' - _id: '569' - _id: '170' - _id: '293' - _id: '35' - _id: '34' - _id: '61' - _id: '230' - _id: '623' - _id: '429' doi: 10.48550/ARXIV.2603.01656 language: - iso: eng project: - _id: '168' name: TRR 142 - Polaronen-Einfluss auf die optischen Eigenschaften von Lithiumniobat (B07*) - _id: '56' name: TRR 142 - Project Area C - _id: '174' name: 'TRR 142 ; TP: C10: Erzeugung und Charakterisierung von Quantenlicht in nichtlinearen Systemen: Eine theoretische Analyse' publication: arXiv status: public title: Gain-induced spectral non-degeneracy in type-II parametric down-conversion type: journal_article user_id: '16199' year: '2026' ...