@article{20644, abstract = {{Plasmonic nanoantennas for visible and infrared radiation strongly improve the interaction of light with the matter on the nanoscale due to their strong near-field enhancement. In this study, we investigate a double-resonant plasmonic nanoantenna, which makes use of plasmonic field enhancement, enhanced outcoupling of second harmonic light, and resonant lattice effects. Using this design, we demonstrate how the efficiency of second harmonic generation can be increased significantly by fully embedding the nanoantennas into nonlinear dielectric material ZnO, instead of placing them on the surface. Investigating two different processes, we found that the best fabrication route is embedding the gold nanoantennas in ZnO using an MBE overgrowth process where a thin ZnO layer was deposited on nanoantennas fabricated on a ZnO substrate. In addition, second harmonic generation measurements show that the embedding leads to an enhancement compared to the emission of nanoantennas placed on the ZnO substrate surface. These promising results facilitate further research to determine the influence of the periodicity of the nanoantenna arrangement of the resulting SHG signal.}}, author = {{Volmert, Ruth and Weber, Nils and Meier, Cedrik}}, issn = {{1089-7550}}, journal = {{Journal of Applied Physics}}, number = {{4}}, title = {{{Nanoantennas embedded in zinc oxide for second harmonic generation enhancement}}}, doi = {{10.1063/5.0012813}}, volume = {{128}}, year = {{2020}}, } @article{18350, author = {{Koldewey, Christian and Meyer, Maurice and Stockbrügger, Patrick and Dumitrescu, Roman and Gausemeier, Jürgen}}, issn = {{2212-8271}}, journal = {{Procedia CIRP}}, number = {{91}}, pages = {{851--857}}, title = {{{Framework and Functionality Patterns for Smart Service Innovation}}}, doi = {{10.1016/j.procir.2020.02.244}}, year = {{2020}}, } @article{16931, author = {{Zhou, Hongqiang and Sain, Basudeb and Wang, Yongtian and Schlickriede, Christian and Zhao, Ruizhe and Zhang, Xue and Wei, Qunshuo and Li, Xiaowei and Huang, Lingling and Zentgraf, Thomas}}, issn = {{1936-0851}}, journal = {{ACS Nano}}, number = {{5}}, pages = {{5553–5559}}, title = {{{Polarization-Encrypted Orbital Angular Momentum Multiplexed Metasurface Holography}}}, doi = {{10.1021/acsnano.9b09814}}, volume = {{14}}, year = {{2020}}, } @article{16944, author = {{Schlickriede, Christian and Kruk, Sergey S. and Wang, Lei and Sain, Basudeb and Kivshar, Yuri and Zentgraf, Thomas}}, issn = {{1530-6984}}, journal = {{Nano Letters}}, number = {{6}}, pages = {{4370–4376}}, title = {{{Nonlinear imaging with all-dielectric metasurfaces}}}, doi = {{10.1021/acs.nanolett.0c01105}}, volume = {{20}}, year = {{2020}}, } @article{15480, abstract = {{The nonlinear processes of frequency conversion such as second harmonic generation (SHG) usually obey certain selection rules, resulting from the preservation of different kinds of physical quantities, e.g. the angular momentum. For the SHG created by a monolayer of transition-metal dichalcogenides (TMDCs) such as WS2, the valley-exciton locked selection rule predicts an SHG signal in the cross-polarization state. By combining plasmonic nanostructures with a monolayer of TMDC, a hybrid metasurface is realized, which affects this nonlinear process because of an additional polarization conversion process. Here, we observe that the plasmonic metasurface modifies the light-matter interaction with the TMDC, resulting in an SHG signal that is co-polarized with respect to the incident field, which is usually forbidden for the monolayers of TMDC. We fabricate such hybrid metasurfaces by placing plasmonic nanorods on top of a monolayer WS2 and study the valley-exciton locked SHG emission from such system for different parameters, such as wavelength and polarization. Furthermore, we show the potential of the hybrid metasurface for tailoring nonlinear processes by adding additional phase information to the SHG signal using the Pancharatnam-Berry phase effect. This allows direct tailoring of the SHG emission to the far-field.}}, author = {{Spreyer, Florian and Zhao, Ruizhe and Huang, Lingling and Zentgraf, Thomas}}, issn = {{2192-8614}}, journal = {{Nanophotonics}}, number = {{2}}, pages = {{351–360}}, title = {{{Second harmonic imaging of plasmonic Pancharatnam-Berry phase metasurfaces coupled to monolayers of WS2}}}, doi = {{10.1515/nanoph-2019-0378}}, volume = {{9}}, year = {{2020}}, } @article{16197, abstract = {{Nonlinear Pancharatnam–Berry phase metasurfaces facilitate the nontrivial phase modulation for frequency conversion processes by leveraging photon‐spin dependent nonlinear geometric‐phases. However, plasmonic metasurfaces show some severe limitation for nonlinear frequency conversion due to the intrinsic high ohmic loss and low damage threshold of plasmonic nanostructures. Here, the nonlinear geometric‐phases associated with the third‐harmonic generation process occurring in all‐dielectric metasurfaces is studied systematically, which are composed of silicon nanofins with different in‐plane rotational symmetries. It is found that the wave coupling among different field components of the resonant fundamental field gives rise to the appearance of different nonlinear geometric‐phases of the generated third‐harmonic signals. The experimental observations of the nonlinear beam steering and nonlinear holography realized in this work by all‐dielectric geometric‐phase metasurfaces are well explained with the developed theory. This work offers a new physical picture to understand the nonlinear optical process occurring at nanoscale dielectric resonators and will help in the design of nonlinear metasurfaces with tailored phase properties.}}, author = {{Liu, Bingyi and Sain, Basudeb and Reineke, Bernhard and Zhao, Ruizhe and Meier, Cedrik and Huang, Lingling and Jiang, Yongyuan and Zentgraf, Thomas}}, issn = {{2195-1071}}, journal = {{Advanced Optical Materials}}, number = {{9}}, publisher = {{Wiley}}, title = {{{Nonlinear Wavefront Control by Geometric-Phase Dielectric Metasurfaces: Influence of Mode Field and Rotational Symmetry}}}, doi = {{10.1002/adom.201902050}}, volume = {{8}}, year = {{2020}}, } @inproceedings{16285, abstract = {{To decide in which part of town to open stores, high street retailers consult statistical data on customers and cities, but they cannot analyze their customers’ shopping behavior and geospatial features of a city due to missing data. While previous research has proposed recommendation systems and decision aids that address this type of decision problem – including factory location and assortment planning – there currently is no design knowledge available to prescribe the design of city center area recommendation systems (CCARS). We set out to design a software prototype considering local customers’ shopping interests and geospatial data on their shopping trips for retail site selection. With real data on 500 customers and 1,100 shopping trips, we demonstrate and evaluate our IT artifact. Our results illustrate how retailers and public town center managers can use CCARS for spatial location selection, growing retailers’ profits and a city center’s attractiveness for its citizens.}}, author = {{zur Heiden, Philipp and Berendes, Carsten Ingo and Beverungen, Daniel}}, booktitle = {{Proceedings of the 15th International Conference on Wirtschaftsinformatik}}, keywords = {{Town Center Management, High Street Retail, Recommender Systems, Geospatial Recommendations, Design Science Research}}, location = {{Potsdam}}, title = {{{Designing City Center Area Recommendation Systems }}}, doi = {{doi.org/10.30844/wi_2020_e1-heiden}}, year = {{2020}}, } @inbook{13108, abstract = {{Diagrammatisches Schlie{\ss}en wird im Zusammenhang mit dem Lernen von Mathmematik und ihrer Symbolsprache als wesentliche Theorie der Wissenskonstruktion diskutiert. Dabei wird h{\"{a}}ufig davon ausgegangen, dass die Wissenskonstruktion im Sinne diagrammatischen Schlie{\ss}ens erfolgt. Deskriptive Rekonstruktionen diagrammatischen Schlie{\ss}ens bei Lernenden stellen jedoch ein Desiderat der mathematikdidaktischen Forschung dar. Der vorliegende Beitrag befasst sich mit der Fragestellung, wie sich diagrammatisches Schlie{\ss}en bei Lernenden rekonstruieren l{\"{a}}sst. Als m{\"{o}}gliche Werkzeuge f{\"{u}}r eine solche Rekonstruktion werden Toulmins Argumentationsschema und Vergnauds Schema-Begriff exemplarisch angewandt, um das diagrammatische Schlie{\ss}en eines Sch{\"{u}}lerpaars beim Einstieg in die Subtraktion negativer Zahlen zu rekonstruieren. Abschlie{\ss}end wird die tats{\"{a}}chliche Eignung der beiden Ans{\"{a}}tze zur Rekonstruktion diagrammatischen Schlie{\ss}ens diskutiert.}}, author = {{Schumacher, Jan and Rezat, Sebastian}}, booktitle = {{Zeichen und Sprache im Mathematikunterricht}}, editor = {{Kadunz, Gert}}, publisher = {{Springer}}, title = {{{Rekonstruktion diagrammatischen Schließens beim Erlernen der Subtraktion negativer Zahlen. Vergleich zweier methodischer Zugänge}}}, doi = {{10.1007/978-3-662-61194-4_5}}, year = {{2020}}, } @article{30096, author = {{Ficara, Elena and d'Agostini, Franca }}, journal = {{Philosophia }}, number = {{2}}, pages = {{252 -- 266}}, title = {{{The Blushing Liar }}}, volume = {{21}}, year = {{2020}}, } @inbook{30095, author = {{Ficara, Elena}}, booktitle = {{Reading Brandom. On A Spirit of Trust}}, editor = {{Bouché, Gilles}}, pages = {{29 -- 40}}, publisher = {{Routledge}}, title = {{{Truth and Incompatibility}}}, year = {{2020}}, } @article{20354, author = {{Wiesenmayer, Sebastian and Heyser, Per and Nehls, Thomas and Frey, Philipp and Flügge, Wilko and Meschut, Gerson and Merklein, Marion}}, journal = {{Werkstattstechnik Online}}, number = {{10}}, pages = {{677--683}}, publisher = {{Springer-VDI-Verlag GmbH & Co. KG}}, title = {{{Berücksichtigung der Herstellungshistorie von Blechbauteilen beim Fügen durch Umformen}}}, doi = {{http://dx.doi.org/10.37544/1436-4980-2020-10-33}}, volume = {{110}}, year = {{2020}}, } @misc{24452, booktitle = {{Gender and Research}}, editor = {{Alemann, v.Annette and Gruhlich, Julia and Horwath, Ilona and Weber, Lena}}, title = {{{The Digitalization of Labour from a Gender Perspective}}}, year = {{2020}}, } @article{20143, author = {{Otroshi, Mortaza and Rossel, Moritz and Meschut, Gerson}}, journal = {{Journal of Advanced Joining Processes}}, keywords = {{Self-pierce riveting, Ductile fracture, Damage modeling, GISSMO damage model}}, publisher = {{Elsevier}}, title = {{{Stress state dependent damage modeling of self-pierce riveting process simulation using GISSMO damage model}}}, doi = {{10.1016/j.jajp.2020.100015}}, volume = {{1}}, year = {{2020}}, } @misc{20119, booktitle = {{Applied Sciences}}, editor = {{Troschitz, Juliane and Vorderbrüggen, Julian and Kupfer, Robert and Gude, Maik and Meschut, Gerson}}, publisher = {{MDPI}}, title = {{{Joining of Thermoplastic Composites with Metals Using Resistance Element Welding}}}, doi = {{10.3390/app10207251}}, year = {{2020}}, } @inproceedings{16930, author = {{Tinkloh, Steffen Rainer and Wu, Tao and Tröster, Thomas and Niendorf, Thomas}}, booktitle = {{Proceedings of the 4th International Conference Hybrid 2020 Materials and Structures}}, location = {{Web-Conference, Germany}}, title = {{{Numerical investigation of the hole-drilling method applied to intrinsic manufactured metal-CFRP hybrids}}}, year = {{2020}}, } @article{20842, author = {{Wu, Tao and Tinkloh, Steffen Rainer and Tröster, Thomas and Zinn, Wolfgang and Niendorf, Thomas}}, issn = {{2504-477X}}, journal = {{Journal of Composites Science}}, title = {{{Determination and Validation of Residual Stresses in CFRP/Metal Hybrid Components Using the Incremental Hole Drilling Method}}}, doi = {{10.3390/jcs4030143}}, year = {{2020}}, } @misc{21294, author = {{Hagengruber, Ruth}}, booktitle = {{H-France Net}}, issn = {{ISSN 1553-9172}}, title = {{{Review Hagengruber Le Ru Émilie Du Châtelet Philosophe }}}, volume = {{158}}, year = {{2020}}, } @article{20690, abstract = {{The Enlightenment is well known for its critical analysis of the Bible. Though the Renaissance sources have been acknowledged as an inspiration of this movement, the Querelle des Femmes and its critique of the Bible has never been considered as a possible catalyst for the enlightened philosophical discourse. For centuries women have fought against interpretations of the Bible.This paper argues that the Querelle des Femmes criticized the Bible not only because of its patriarchal content but also criticized philosophical thinking that, for supporting the views from the Bible and its misogynist stance, misusing the instruments of rational philosophy. Arguments from 1400-1750, from Nogarola to Du Châtelet proof women philosophers’ fight in favour of a critique of the bible from a rational point of view, reflecting also on the status of what it meant, to argue rationally.}}, author = {{Hagengruber, Ruth}}, isbn = {{ISBN 978-88-7000-877-7}}, journal = {{Dianoia 31, no. XXV}}, keywords = {{Keywords: Bible critics, Isotta Nogarola, Querelle des femmes, Enlightenment, Émilie Du Châtelet.}}, location = {{Bologna }}, pages = {{331--353}}, title = {{{Pressure on Enlightenment. Bible Critics from Nogarola to Du Châtelet}}}, year = {{2020}}, } @article{34789, author = {{Amiri, Habib and Glöckner, Helge and Schmeding, Alexander}}, issn = {{0044-8753}}, journal = {{Archivum Mathematicum}}, keywords = {{22A22, 22E65, 22E67, 46T10, 47H30, 58D15, 58H05}}, number = {{5}}, pages = {{307–356}}, title = {{{Lie groupoids of mappings taking values in a Lie groupoid}}}, doi = {{10.5817/AM2020-5-307}}, volume = {{56}}, year = {{2020}}, } @article{34787, author = {{Glöckner, Helge and Masbough, Niku}}, issn = {{0146-4124}}, journal = {{Topology Proceedings}}, keywords = {{54B10, 54D45, 54D50}}, pages = {{35–38}}, title = {{{Products of regular locally compact spaces are k_R-spaces}}}, volume = {{55}}, year = {{2020}}, }