@inbook{65912, author = {{Vogelsang, Christoph and Riese, Josef}}, booktitle = {{Handlungsorientierung in der Ausbildung von Lehrkräften und pädagogischen Fachkräften. Konzeptionen und Forschungsperspektiven}}, editor = {{Vogelsang, Christoph and Grotegut, Lea and Bruns, Julia and Riese, Josef and Fechner, Sabine }}, pages = {{269 -- 278}}, title = {{{Ein Format zur handlungsnäheren Prüfung von Unterrichtsplanungskompetenz für das Lehramtsstudium im Fach Physik}}}, year = {{2026}}, } @inbook{62971, author = {{Bender, Roland and Witte, Thomas and Hattermann, Matthias and Fechner, Sabine}}, booktitle = {{Neue Materialien für einen realitätsbezogenen Mathematikunterricht}}, editor = {{Siller, Hans-Stefan and Vorhölzer, Katrin}}, isbn = {{634892}}, publisher = {{Springer}}, title = {{{Der Logarithmus zur Bestimmung des pH-Wert-Verlaufs einer Titration: Ein fächerverbindender Unterrichtsvorschlag unter Verwendung digitaler Werkzeuge}}}, year = {{2026}}, } @article{66040, abstract = {{Magnetron-sputtered CNx thin films are primarily employed as hard, low-friction protective and tribological coatings, as solar cells, and for catalytic applications. Lower growth rates and a reduced N content, favoring graphitic sp2 structures, hinder industrial scalability due to prolonged deposition times and produce softer, less dense films with inferior hardness, elasticity, and wear resistance. Carbon nitride films deposited by magnetron sputtering exhibit growth behavior strongly influenced by plasma–surface interactions. However, nitrogen resputtering and reduced film growth rates are commonly attributed to chemical etching by positive ions. We propose an additional, unreported power-dependent mechanism involving negative ions formed at the carbon target. These ions are accelerated through the plasma sheath, reaching the substrate with high kinetic energy and inducing both chemical and physical resputtering. This effect is localized to the geometrical projection of the target, as shown by spatially resolved analysis: ellipsometry reveals thickness reduction, and x-ray photoelectron spectroscopy and Raman spectroscopy indicate nitrogen depletion within this region. Correlation between stoichiometry and structural signatures confirms the decisive role of negative ions in modifying the film composition and microstructure. At the same time, the composition of the gas mixture exerts only a minor effect.}}, author = {{Wieschhoff, Christian and Theile-Rasche, Chantal and Wang, Fuzeng and Prib, Michael and Moldt, Viktoria Daniela Dorothea and Grundmeier, Guido and Salas, Nieves López and de los Arcos de Pedro, Maria Teresa}}, issn = {{0021-8979}}, journal = {{Journal of Applied Physics}}, number = {{24}}, publisher = {{AIP Publishing}}, title = {{{Influence of negative ions on the stoichiometry and structure of carbon nitride films deposited by reactive magnetron sputtering}}}, doi = {{10.1063/5.0335780}}, volume = {{139}}, year = {{2026}}, } @article{66041, author = {{Voth, Sven and Zhao, Zhenyu and Baier, Dominik and Glass, Alexandra and Elgabarty, Hossam and Sandberg, Oskar J. and Grundmeier, Guido and Tiemann, Michael and Smått, Jan-Henrik and Anttu, Nicklas and de los Arcos de Pedro, Maria Teresa and Weinberger, Christian}}, issn = {{2379-3694}}, journal = {{ACS Sensors}}, publisher = {{American Chemical Society (ACS)}}, title = {{{Role of Irradiance in Light-Activated In 2 O 3 Gas Sensors: Why More Light Is Not Always Better}}}, doi = {{10.1021/acssensors.6c01100}}, year = {{2026}}, } @article{66042, author = {{Qudsia, Syeda and Weiss, Alexander and Sirkiä, Saara and Wang, Fuzeng and Rosqvist, Emil and de los Arcos de Pedro, Maria Teresa and Weinberger, Christian and Halme, Janne and Kemell, Marianna and Smått, Jan-Henrik}}, issn = {{0169-4332}}, journal = {{Applied Surface Science}}, publisher = {{Elsevier BV}}, title = {{{Influence of deposition temperature and thickness of ALD-TiO2 on planar perovskite solar cell performance}}}, doi = {{10.1016/j.apsusc.2026.166755}}, volume = {{736}}, year = {{2026}}, } @article{66488, abstract = {{Alkaline oxygen evolution on Co3O4 involves more than adsorption and electron transfer at a fixed surface. The article draws on operando electrochemical quartz crystal microbalance with dissipation monitoring (EQCM-D), surface X-ray diffraction (SXRD), Raman, UV/Vis and impedance spectroscopy. On this basis, it discusses pseudocapacitive oxidation of cobalt ion sites, electrolyte uptake and near-surface transformation, and asks which of these changes are kinetically coupled to electrocatalysis.}}, author = {{Linnemann, Julia and Leppin, Christian}}, journal = {{Bunsen-Magazin}}, keywords = {{electrocatalysis, oxygen evolution reaction, cobalt spinel, operando characterization, spectroelectrochemistry}}, location = {{Dresden}}, number = {{4}}, pages = {{81--84}}, publisher = {{Deutsche Bunsen-Gesellschaft für physikalische Chemie e.V.}}, title = {{{The catalyst that stores charge first}}}, doi = {{10.26125/6G4P-8386}}, year = {{2026}}, } @article{66555, abstract = {{Scalable plasmonic technologies face a critical trade‐off: few‐body architectures offer high enhancement but are sensitive to fabrication flaws, while scalable methods like solid‐state dewetting yield large, low‐enhancement gaps. We introduce a paradigm shift using a many‐body plasmonic architecture inspired by statistical mechanics. By moving toward the continuum limit, local geometric variations are statistically averaged out, effectively decoupling optical performance from microscopic disorder. We implement this concept via a lithography‐ and etching‐free, multi‐step dewetting strategy, creating wafer‐scale nanoclusters. This process strategically forms a robust many‐body system by introducing numerous small satellite nanoparticles between larger particles. Crucially, this design achieves a high collective enhancement that surpasses even optimized few‐body systems, despite having larger individual gaps. Under optimized conditions, these substrates exhibit a surface‐enhanced Raman scattering enhancement factor approaching 4 × 10^8 with unprecedented reproducibility (RSD of ∼10%). This scalable, low‐cost concept establishes a practical route toward reproducible wafer‐scale nanophotonic platforms for sensing, spectroscopy, and quantum technologies.}}, author = {{Kim, Minjun and Devaraj, Vasanthan and Seo, Hyeon‐Seok and Eom, Seong‐Jae and Lee, Jeong‐Su and Lee, Donghan and Jeon, Min Yong and Zentgraf, Thomas and Lee, Jong‐Min}}, issn = {{1863-8880}}, journal = {{Laser & Photonics Reviews}}, publisher = {{Wiley}}, title = {{{Engineering Disordered Many‐Particle Plasmonic Nanoclusters for Wafer‐Scale Uniform and Giant Electromagnetic Field Enhancement}}}, doi = {{10.1002/lpor.71610}}, year = {{2026}}, } @inbook{66563, abstract = {{Im ComeMINT-Netzwerk wurde für das Fach Physik ein zweiphasiges Fortbildungskonzept zum Einsatz digitaler Medien im Physikunterricht entwickelt. Die erste Phase besteht aus einem Online-Selbstlernkurs auf der Plattform iMooX, welcher neben einer Einführung in das Lernen mit digitalen Medien auch Module zu spezifischen Medien wie z. B. Erklärvideos, digitale Messwerterfassung, Smartphones im Physikunterricht oder Mikrocontroller umfasst. Darauf aufbauend werden vertiefende Präsenzfortbildungen zu einzelnen Medien an den beteiligten Standorten angeboten, die einen stärkeren Praxisbezug verfolgen. Der Beitrag stellt neben den Konzepten des Online-Selbstlernkurses und den Präsenzfortbildungen auch die bisherigen Erfahrungen aus der Implementation der Fortbildung in die Praxis vor.}}, author = {{Plicht, Katja and Burde, Jan-Philipp and Costan, Kasim and Gieshoff, Rike Isabel and Kulgemeyer, Christoph and Lässer, Armin and Riese, Josef and Schubatzky, Thomas and Weiler, David Christoph}}, booktitle = {{Professionelles Handeln in einer Kultur der Digitalität: Ergebnisse aus dem Kompetenzzentrum MINT}}, editor = {{Scheiter, Katharina and Richter, Dirk and Pittich, Daniel and Halbrock, Lara}}, isbn = {{9783818801502}}, keywords = {{Digitale Medien, Online-Kurs, Präsenzfortbildung, Physikunterricht}}, pages = {{155--168}}, publisher = {{Waxmann Verlag GmbH}}, title = {{{Vom Online-Kurs zur Präsenzfortbildung}}}, doi = {{10.31244/9783818851507}}, volume = {{1}}, year = {{2026}}, } @article{66583, abstract = {{We introduce a method for determining the sensitivity of any given entangled two-photon absorption (ETPA) measurement. By modeling all signal and noise contributions to the measurement, we derive a single numerical value that describes the sensitivity of the ETPA measurement in Göppert-Mayer units. This allows us to directly compare vastly different experimental approaches and determine whether ETPA will be detectable under the given conditions. Therefore we can quantify the effect of any change to a given experimental apparatus and identify the ideal optimization pathway.}}, author = {{Pollmann, René and Roeder, Franz and Silberhorn, Christine and Brecht, Benjamin}}, issn = {{2469-9926}}, journal = {{Physical Review A}}, number = {{1}}, publisher = {{American Physical Society (APS)}}, title = {{{Limitations of entangled two-photon absorption detection}}}, doi = {{10.1103/qpb1-hk5l}}, volume = {{114}}, year = {{2026}}, } @inbook{36895, author = {{Webersen, Yvonne and Riese, Josef}}, booktitle = {{Demokratiebildung in der Lehrkräftebildung (Arbeitstitel). Paderborner Beiträge zur Bildungsforschung und Lehrkräftebildung.}}, editor = {{Becher, Andrea and Bloh, Bea and Herzig, Bardo and Pollmeier, Pascal}}, publisher = {{Waxmann}}, title = {{{Wie funktionieren (Pseudo)wissenschaften? Ein Seminarkonzept für angehende Lehrkräfte naturwissenschaftlicher Fächer}}}, volume = {{3}}, year = {{2026}}, } @article{66640, abstract = {{ We develop a framework for identifying nonclassical speedups in systems with polarization, likewise spin degrees of freedom. By confining the dynamics to the manifold of angular momentum coherent states, which act as the classical reference in this case, we compute the speed limit that bounds the rate of change of the state achievable without generating quantum coherence. A comparison with the unrestricted quantum speed limit enables the quantitative identification of speedups arising from polarization nonclassicality. We apply this framework to the cross-Kerr interaction, demonstrating a persistent speedup scaling as O ( N ) with the photon number N , with a parity effect in favor of even photon numbers. The results establish polarization nonclassicality as a genuine dynamical resource, linking quantum coherence to quantum-enhanced evolution speeds in nonlinear photonic systems. }}, author = {{Aßbrock, Tim and Sperling, Jan and Ares, Laura}}, issn = {{2643-1564}}, journal = {{Physical Review Research}}, number = {{3}}, publisher = {{American Physical Society (APS)}}, title = {{{Quantum speedup from nonclassical polarization}}}, doi = {{10.1103/mflc-2mzq}}, volume = {{8}}, year = {{2026}}, } @article{66674, abstract = {{Efficient detection of near-infrared light at telecommunication wavelengths remains a central challenge for GaAs-based photonic and optoelectronic devices due to the absence of linear absorption below the bandgap. Here, we demonstrate a hybrid nonlinear optoelectronic device that enhances the detection efficiency of a (001)-oriented GaAs PIN photodiode under telecommunication-wavelength illumination, where absorption is intrinsically limited to two-photon absorption (2PA). Our approach relies on the integration of a transferred, nanopatterned 385 nm-thick (111)-oriented GaAs nanofilm acting as an on-chip nonlinear frequency-conversion layer. Elliptical GaAs nanoresonators are employed to enhance second-harmonic generation (SHG) resonantly, converting incident 1550 nm radiation into above-bandgap photons efficiently absorbed by the underlying diode. Spatially resolved current–voltage measurements reveal a pronounced enhancement of the detector response in regions covered by the nanoantennas. The device exhibits a low dark current, while the metasurface-covered regions show the largest current response under 1560 nm excitation compared to the bare GaAs(100) diode and the unstructured GaAs(111) film. These results establish a direct functional link between dielectric metasurface–based nonlinear frequency conversion and electrical photodetection, providing a viable route toward integrated sub-bandgap detection schemes.}}, author = {{Spedt, Vladimir and Meier, Falco and Geromel, René and Mahler, Pascal and Henksmeier, Tobias and Reuter, Dirk and Zentgraf, Thomas and Meier, Cedrik}}, issn = {{1094-4087}}, journal = {{Optics Express}}, number = {{16}}, publisher = {{Optica Publishing Group}}, title = {{{Hybrid GaAs (111)/GaAs (100) PIN photodiodes for metasurface-assisted nonlinear upconversion detection}}}, doi = {{10.1364/oe.601288}}, volume = {{34}}, year = {{2026}}, } @phdthesis{63826, abstract = {{In dieser Dissertation werden Aspekte von high-gain multimode SU(1,1) Interferometer theoretisch untersucht. Dabei wird der Prozess der parametrischen Fluoreszenz (PDC) mithilfe von Integro-Differentialgleichungen modelliert, welche die räumliche Entwicklung der Ebene-Wellen-Operatoren beschreiben. Es wurde gezeigt, dass Supersensitivität für die Phasenempfindlichkeit dieser Interferometer erreicht werden kann, sofern die Beugung der PDC Strahlung kompensiert wird. Weiterhin führt eine Erhöhung der parametrische Verstärkung und eine Reduktion der Schmidt-Zahl zu einer Verbesserung der Phasenempfindlichkeit und einer Verkleinerung des Phasenbereiches, über den die Supersensitivität erreicht werden kann. Basierend auf der Struktur der Schmidt-Moden von SU(1,1) Interferometern wurde ein numerisches Aufbereitungsverfahren konstruiert, welches die Messung der Stärke des Squeezing und Anti-Squeezing des Zustandes ermöglicht, der durch den ersten Kristall des Interferometers erzeugt wird. Das Verfahren wurde experimentell von Kooperationspartnern angewandt, wobei eine gute Übereinstimmung mit der Theorie festgestellt wurde. Zuletzt wurden SU(1,1) Interferometer mit Laguerre-Gauß-Moden als Pump-Strahlung für die Messung von Winkelverschiebungen untersucht. Es zeigte sich, dass sich die quantenmechanisch bedingte Messunsicherheit verbessert, wenn die parametrische Verstärkung oder die Indizes der Pump-Mode erhöht werden. Das generelle Verhalten gleicht dem der Phasensensitivität.}}, author = {{Scharwald, Dennis}}, pages = {{XII, 201}}, publisher = {{Universität Paderborn}}, title = {{{Theoretical investigations of spatially multimode high-gain SU(1,1) interferometers}}}, doi = {{10.17619/UNIPB/1-2491}}, year = {{2026}}, } @article{66741, abstract = {{Abstract We study theoretically how high-gain effects affect the measurement outcome of visible signal spectra in undetected photon measurement schemes. We consider two interferometric configurations: firstly, the SU(1,1) interferometer where the idler incurs loss and additional dispersion in between two identical, lossless, squeezers; secondly, the induced coherence interferometer where the idler incurs loss and additional dispersion in between two identical, lossless, squeezers and where the second squeezer is seeded by the idler and a vacuum ancilla mode. Furthermore, we consider a distributed loss configuration where the idler incurs loss as it propagates in the nonlinear medium. Motivated by experimental evidence and due to the fact that broadband sources are ideal for these measurement schemes, we use the dispersive data of a third-order dispersion engineered integrated waveguide parametric down conversion (PDC) source presented in Roeder et al (2024 New J. Phys. 26 123025) to model the PDC spectra in the three configurations. For each configuration we consider the case of idler-only (i) absorption, (ii) additional dispersion, and (iii) the combined effects. We obtain results which outline the strength and weaknesses of the different configurations at different operation points. }}, author = {{Houde, Martin and Roeder, Franz and Silberhorn, Christine and Brecht, Benjamin and Quesada, Nicolás}}, issn = {{1367-2630}}, journal = {{New Journal of Physics}}, number = {{7}}, publisher = {{IOP Publishing}}, title = {{{High-gain effects in broadband continuous-wave parametric down conversion sources and measurements with undetected photons}}}, doi = {{10.1088/1367-2630/ae8692}}, volume = {{28}}, year = {{2026}}, } @article{66740, abstract = {{Abstract We theoretically compare the quantum Fisher information (QFI) for three configurations of absorption spectroscopy with undetected idler photons: an SU(1,1) interferometer with inter-source idler loss, an induced-coherence (IC) setup in which the idler partially seeds a second squeezer together with a vacuum ancilla, and a distributed-loss (DL) scheme with in-medium attenuation. We calculate the QFI as a function of parametric gain for both full and signal-only detection access. For losses below 99% and low to moderate gain, the SU(1,1) configuration provides the largest QFI. At high gain and intermediate loss, the IC scheme performs best, while under extreme attenuation (transmission < 1%) the DL model becomes optimal. These results delineate the measurement regimes in which each architecture is optimal in terms of information theory. }}, author = {{Houde, Martin and Roeder, Franz and Silberhorn, Christine and Brecht, Benjamin and Quesada, Nicolás}}, issn = {{2515-7647}}, journal = {{Journal of Physics: Photonics}}, number = {{3}}, publisher = {{IOP Publishing}}, title = {{{Quantum fisher information analysis for absorption measurements with undetected photons}}}, doi = {{10.1088/2515-7647/ae82a2}}, volume = {{8}}, year = {{2026}}, } @inproceedings{66739, author = {{Güldenpenning, Iris and Schulze Frielinghaus, Lars and Böer, Nils Tobias and Schmidt, Thomas and Weigelt, Matthias}}, booktitle = {{18th FEPSAC European Congress of Sport Psychology: Performance, Health and Enhancement in Action}}, location = {{Timisoara}}, title = {{{Early postural dynamics reveal the rapid processing of fake social cues for deceptive actions in sports}}}, year = {{2026}}, } @inproceedings{66742, author = {{Böer, Nils Tobias and Steinborn, Michael B. and Weigelt, Matthias and Güldenpenning, Iris}}, booktitle = {{18th FEPSAC European Congress of Sport Psychology: Performance, Health and Enhancement in Action}}, location = {{Timisoara (Rumänien)}}, title = {{{Mobilizing Effort in Complex Motor Tasks: Try-Harder Instructions in Deceptive Actions}}}, year = {{2026}}, } @inproceedings{66093, abstract = {{Taking pupils’ diverse needs into account is considered a central requirement of inclusive education (Booth & Ainscow, 2016). These needs are—according to Ainscow’s (2007) inclusive turn—not primarily ‘special educational needs’, but diverse needs of all learners. For the rather segregated German educational system, this endeavour applies especially to primary education, where needs are still developing and pupils are not yet assigned to different types of schooling according to their needs and abilities. Despite a substantial amount of research on pupils’ basic psychological needs for autonomy, competence and social relatedness (Ryan et al., 2022), strategies that technology education teachers apply in this regard are not yet well understood. Besides interventional studies on technology education, indicating effectiveness of self‑directed and action‑oriented teaching and learning, there is a dearth of research on how teachers address different needs as a routine. The purpose of the presented study is therefore to investigate and systematize actions and strategies teachers apply, and to specify how pupils' needs are considered when teaching technology education on a given topic. The overall study used a mixed-methods approach to the question how pupils’ needs are characterized by themselves and by their teachers, and how they were taken into account in a lesson adapted and delivered by the teachers. In the sub-study presented here, participating primary school teachers were interviewed about their consideration of pupils’ needs whilst planning and conducting a technology education unit on the functionality of robots. The results gained from qualitative content analysis of the interviews indicate that although the anticipation of different needs is considered challenging, teachers possess a substantiate amount of practices and strategies to take them into account. The paper systematizes the practices teachers described in structured interviews within strategies and discusses the contribution of taking basic needs into account for inclusive technology education.}}, author = {{Schröer, Franz and Tenberge, Claudia}}, booktitle = {{Linköping Electronic Conference Proceedings}}, issn = {{1650-3686}}, keywords = {{Technology Education, Inclusion, Basic Needs, Robotics, Mixed Methods, Teachers' Abilities}}, publisher = {{Linköping University Electronic Press}}, title = {{{“They Really Need to Handle, Inspect, and Experience Things”}}}, doi = {{10.3384/ecp213.1455}}, volume = {{218}}, year = {{2026}}, } @article{66092, abstract = {{ DNA origami nanostructures (DONs) have promising applications in biomedicine and biosensing, which often require their efficient binding to target cells. By immobilizing the glycopeptide antibiotic vancomycin on DONs, DON binding to Gram‐positive and Gram‐negative bacteria can be facilitated. Here, we investigate how this multivalent binding is affected by the number and arrangement of the vancomycin modifications on two‐dimensional DONs. We find that for both Gram‐positive Bacillus subtilis and Gram‐negative Escherichia coli , binding increases with the number of vancomycin modifications per DON. In general, binding to E. coli is stronger than to B. subtilis , which may be attributed to differences in the architectures of the cell envelopes. Interestingly, for both bacteria, the total number of vancomycin modifications appears to be more important than their arrangement, as DONs with 18 vancomycin molecules on one side show similar binding as DONs with 18 vancomycin molecules distributed over both sides. This enables the attachment of multiple probe molecules to the vancomycin‐free side of the DONs for enhancing detection efficiency without compromising binding affinity. These results may thus provide guidelines for the design and synthesis of vancomycin‐modified DONs for antimicrobial drug delivery and pathogen detection. }}, author = {{Coşkuner Leineweber, Özge and Hofmann, Ulrike and Grundmeier, Guido and Zhang, Yixin and Keller, Adrian Clemens}}, issn = {{1439-4227}}, journal = {{ChemBioChem}}, number = {{13}}, publisher = {{Wiley}}, title = {{{Vancomycin‐Mediated Binding of DNA Origami Nanostructures to Gram‐Positive and Gram‐Negative Bacteria}}}, doi = {{10.1002/cbic.70436}}, volume = {{27}}, year = {{2026}}, } @article{66094, abstract = {{The two-qubit controlled-not (C-NOT) gate is an essential component for gate-based quantum circuits. In fact, its operation, combined with single qubit rotations allows to realise any quantum circuit. Several strategies have been adopted in order to build quantum gates. Among them, photonics offers the dual advantage of excellent isolation from the environment and ease of manipulation at the single qubit level. Here we adopt a scalable time-multiplexed approach in order to build a fully reconfigurable architecture capable of implementing a post-selected C-NOT gate with a fidelity of (93.8 ± 1.4)%. We then show how our time-multiplexed platform can be employed to combine a C-NOT and a single qubit gate in order to generate the four Bell states.}}, author = {{Pegoraro, Federico and Held, Philip and Lammers, Jonas and Brecht, Benjamin and Silberhorn, Christine}}, issn = {{2041-1723}}, journal = {{Nature Communications}}, keywords = {{Photonic Quantum Computing, Time-multiplexing, Quantum Information}}, number = {{1}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Demonstration of a quantum C-NOT gate in a time-multiplexed fully reconfigurable photonic processor}}}, doi = {{10.1038/s41467-026-74861-9}}, volume = {{17}}, year = {{2026}}, }