@article{7800, author = {{Henksmeier, Tobias and Shvarkov, Stepan and Trapp, Alexander and Reuter, Dirk}}, issn = {{0022-0248}}, journal = {{Journal of Crystal Growth}}, pages = {{164--168}}, publisher = {{Elsevier BV}}, title = {{{Molecular beam epitaxy growth and temperature-dependent electrical characterization of carbon-doped GaAs on GaAs(1 1 1)B}}}, doi = {{10.1016/j.jcrysgro.2019.02.006}}, volume = {{512}}, year = {{2019}}, } @article{8797, abstract = {{Free from phase-matching constraints, plasmonic metasurfaces have contributed significantly to the control of optical nonlinearity and enhancement of nonlinear generation efficiency by engineering subwavelength meta-atoms. However, high dissipative losses and inevitable thermal heating limit their applicability in nonlinear nanophotonics. All-dielectric metasurfaces, supporting both electric and magnetic Mie-type resonances in their nanostructures, have appeared as a promising alternative to nonlinear plasmonics. High-index dielectric nanostructures, allowing additional magnetic resonances, can induce magnetic nonlinear effects, which, along with electric nonlinearities, increase the nonlinear conversion efficiency. In addition, low dissipative losses and high damage thresholds provide an extra degree of freedom for operating at high pump intensities, resulting in a considerable enhancement of the nonlinear processes. We discuss the current state of the art in the intensely developing area of all-dielectric nonlinear nanostructures and metasurfaces, including the role of Mie modes, Fano resonances, and anapole moments for harmonic generation, wave mixing, and ultrafast optical switching. Furthermore, we review the recent progress in the nonlinear phase and wavefront control using all-dielectric metasurfaces. We discuss techniques to realize all-dielectric metasurfaces for multifunctional applications and generation of second-order nonlinear processes from complementary metal–oxide–semiconductor-compatible materials.}}, author = {{Sain, Basudeb and Meier, Cedrik and Zentgraf, Thomas}}, issn = {{2577-5421}}, journal = {{Advanced Photonics}}, number = {{2}}, pages = {{024002}}, title = {{{Nonlinear optics in all-dielectric nanoantennas and metasurfaces: a review}}}, doi = {{10.1117/1.ap.1.2.024002}}, volume = {{1}}, year = {{2019}}, } @inproceedings{9635, author = {{Meyer-Scott, Evan and Prasannan, Nidhin and Montaut, Nicola and Tiedau, Johannes and Eigner, Christof and Harder, Georg and Sansoni, Linda and Nitsche, Thomas and Herrmann, Harald and Ricken, Raimund and Quiring, Viktor and Bartley, Tim and Barkhofen, Sonja and Silberhorn, Christine}}, booktitle = {{Advances in Photonics of Quantum Computing, Memory, and Communication XII}}, editor = {{Hasan, Zameer U. and Hemmer, Philip R. and Migdall, Alan L.}}, isbn = {{9781510625082}}, title = {{{Engineering integrated photon pair sources and multiplexed detectors (Conference Presentation)}}}, doi = {{10.1117/12.2513753}}, year = {{2019}}, } @article{9698, author = {{Golla, C. and Weber, N. and Meier, Cedrik}}, issn = {{0021-8979}}, journal = {{Journal of Applied Physics}}, number = {{7}}, title = {{{Zinc oxide based dielectric nanoantennas for efficient nonlinear frequency conversion}}}, doi = {{10.1063/1.5082720}}, volume = {{125}}, year = {{2019}}, } @article{9826, author = {{Tiedau, Johannes and Meyer-Scott, Evan and Nitsche, Thomas and Barkhofen, Sonja and Bartley, Tim and Silberhorn, Christine}}, issn = {{1094-4087}}, journal = {{Optics Express}}, title = {{{A high dynamic range optical detector for measuring single photons and bright light}}}, doi = {{10.1364/oe.27.000001}}, year = {{2019}}, } @article{9897, author = {{Protte, Maximilian and Weber, Nils and Golla, Christian and Zentgraf, Thomas and Meier, Cedrik}}, issn = {{0021-8979}}, journal = {{Journal of Applied Physics}}, title = {{{Strong nonlinear optical response from ZnO by coupled and lattice-matched nanoantennas}}}, doi = {{10.1063/1.5093257}}, volume = {{125}}, year = {{2019}}, } @article{11953, abstract = {{As flexible optical devices that can manipulate the phase and amplitude of light, metasurfaces would clearly benefit from directional optical properties. However, single layer metasurface systems consisting of two-dimensional nanoparticle arrays exhibit only a weak spatial asymmetry perpendicular to the surface and therefore have mostly symmetric transmission features. Here, we present a metasurface design principle for nonreciprocal polarization encryption of holographic images. Our approach is based on a two-layer plasmonic metasurface design that introduces a local asymmetry and generates a bidirectional functionality with full phase and amplitude control of the transmitted light. The encoded hologram is designed to appear in a particular linear cross-polarization channel, while it is disappearing in the reverse propagation direction. Hence, layered metasurface systems can feature asymmetric transmission with full phase and amplitude control and therefore expand the design freedom in nanoscale optical devices toward asymmetric information processing and security features for anticounterfeiting applications.}}, author = {{Frese, Daniel and Wei, Qunshuo and Wang, Yongtian and Huang, Lingling and Zentgraf, Thomas}}, issn = {{1530-6984}}, journal = {{Nano Letters}}, number = {{6}}, pages = {{3976--3980}}, title = {{{Nonreciprocal Asymmetric Polarization Encryption by Layered Plasmonic Metasurfaces}}}, doi = {{10.1021/acs.nanolett.9b01298}}, volume = {{19}}, year = {{2019}}, } @article{11955, author = {{Li, Tianyou and Wei, Qunshuo and Reineke, Bernhard and Walter, Felicitas and Wang, Yongtian and Zentgraf, Thomas and Huang, Lingling}}, issn = {{1094-4087}}, journal = {{Optics Express}}, number = {{15}}, pages = {{21153--21162}}, title = {{{Reconfigurable metasurface hologram by utilizing addressable dynamic pixels}}}, doi = {{10.1364/oe.27.021153}}, volume = {{27}}, year = {{2019}}, } @article{12917, author = {{Reineke, Bernhard and Sain, Basudeb and Zhao, Ruizhe and Carletti, Luca and Liu, Bingyi and Huang, Lingling and de Angelis, Costantino and Zentgraf, Thomas}}, issn = {{1530-6984}}, journal = {{Nano Letters}}, number = {{9}}, pages = {{6585–6591}}, title = {{{Silicon metasurfaces for third harmonic geometric phase manipulation and multiplexed holography}}}, doi = {{10.1021/acs.nanolett.9b02844}}, volume = {{19}}, year = {{2019}}, } @article{12919, author = {{Georgi, Philip and Massaro, Marcello and Luo, Kai Hong and Sain, Basudeb and Montaut, Nicola and Herrmann, Harald and Weiss, Thomas and Li, Guixin and Silberhorn, Christine and Zentgraf, Thomas}}, issn = {{2047-7538}}, journal = {{Light: Science & Applications}}, pages = {{70}}, title = {{{Metasurface interferometry toward quantum sensors}}}, doi = {{10.1038/s41377-019-0182-6}}, volume = {{8}}, year = {{2019}}, } @article{12930, author = {{Köthemann, Ronja and Weber, Nils and Lindner, Jörg K N and Meier, Cedrik}}, issn = {{0268-1242}}, journal = {{Semiconductor Science and Technology}}, number = {{9}}, title = {{{High-precision determination of silicon nanocrystals: optical spectroscopy versus electron microscopy}}}, doi = {{10.1088/1361-6641/ab3536}}, volume = {{34}}, year = {{2019}}, } @article{14870, author = {{Wei, Qunshuo and Sain, Basudeb and Wang, Yongtian and Reineke, Bernhard and Li, Xiaowei and Huang, Lingling and Zentgraf, Thomas}}, issn = {{1530-6984}}, journal = {{Nano Letters}}, number = {{12}}, pages = {{8964–8971}}, title = {{{Simultaneous Spectral and Spatial Modulation for Color Printing and Holography Using All-dielectric Metasurfaces}}}, doi = {{10.1021/acs.nanolett.9b03957}}, volume = {{19}}, year = {{2019}}, } @article{16113, author = {{Tiedau, Johannes and Bartley, Tim and Harder, Georg and Lita, Adriana E. and Nam, Sae Woo and Gerrits, Thomas and Silberhorn, Christine}}, issn = {{2469-9926}}, journal = {{Physical Review A}}, title = {{{Scalability of parametric down-conversion for generating higher-order Fock states}}}, doi = {{10.1103/physreva.100.041802}}, year = {{2019}}, } @article{10282, author = {{Lin, Zemeng and Huang, Lingling and Zhao, Ruizhe and Wei, Qunshuo and Zentgraf, Thomas and Wang, Yongtian and Li, Xiaowei}}, issn = {{1094-4087}}, journal = {{Optics Express}}, number = {{13}}, pages = {{18740--18750}}, title = {{{Dynamic control of mode modulation and spatial multiplexing using hybrid metasurfaces}}}, doi = {{10.1364/oe.27.018740}}, volume = {{27}}, year = {{2019}}, } @article{13650, abstract = {{Surfaces covered with layers of ultrathin nanoantenna structures—so called metasurfaces have recently been proven capable of completely controlling phase of light. Metalenses have emerged from the advance in the development of metasurfaces providing a new basis for recasting traditional lenses into thin, planar optical components capable of focusing light. The lens made of arrays of plasmonic gold nanorods were fabricated on a glass substrate by using electron beam lithography. A 1064 nm laser was used to create a high intensity circularly polarized light focal spot through metalens of focal length 800 µm, N.A. = 0.6 fabricated based on Pancharatnam-Berry phase principle. We demonstrated that optical rotation of birefringent nematic liquid crystal droplets trapped in the laser beam was possible through this metalens. The rotation of birefringent droplets convinced that the optical trap possesses strong enough angular momentum of light from radiation of each nanostructure acting like a local half waveplate and introducing an orientation-dependent phase to light. Here, we show the success in creating a miniaturized and robust metalens based optical tweezers system capable of rotating liquid crystals droplets to imitate an optical motor for future lab-on-a-chip applications.}}, author = {{Suwannasopon, Satayu and Meyer, Fabian and Schlickriede, Christian and Chaisakul, Papichaya and T-Thienprasert, Jiraroj and Limtrakul, Jumras and Zentgraf, Thomas and Chattham, Nattaporn}}, issn = {{2073-4352}}, journal = {{Crystals}}, number = {{10}}, pages = {{515}}, title = {{{Miniaturized Metalens Based Optical Tweezers on Liquid Crystal Droplets for Lab-on-a-Chip Optical Motors}}}, doi = {{10.3390/cryst9100515}}, volume = {{9}}, year = {{2019}}, } @article{13651, author = {{Chen, Shumei and Reineke, Bernhard and Li, Guixin and Zentgraf, Thomas and Zhang, Shuang}}, issn = {{1530-6984}}, journal = {{Nano Letters}}, number = {{9}}, pages = {{6278--6283}}, title = {{{Strong Nonlinear Optical Activity Induced by Lattice Surface Modes on Plasmonic Metasurface}}}, doi = {{10.1021/acs.nanolett.9b02417}}, volume = {{19}}, year = {{2019}}, } @article{24958, author = {{Bauer, Anna and Lahme, Simon and Woitkowski, David and Vogelsang, Christoph and Reinhold, Peter}}, journal = {{PhyDid B – Didaktik der Physik – Beiträge zur DPG-Frühjahrstagung}}, pages = {{53--60}}, title = {{{PSΦ: Forschungsprogramm zur Studieneingangsphase im Physikstudium}}}, year = {{2019}}, } @article{23735, author = {{Vogelsang, Christoph and Finger, Alexander and Laumann, Daniel and Thyssen, Christoph}}, issn = {{0949-1147}}, journal = {{Zeitschrift für Didaktik der Naturwissenschaften}}, pages = {{115--129}}, publisher = {{Springer}}, title = {{{Vorerfahrungen, Einstellungen und motivationale Orientierungen als mögliche Einflussfaktoren auf den Einsatz digitaler Werkzeuge im naturwissenschaftlichen Unterricht}}}, doi = {{10.1007/s40573-019-00095-6}}, year = {{2019}}, } @article{35529, abstract = {{Angehende Physiklehrkräfte sollen im Rahmen ihres Studiums fachliches und fachdidaktisches Wissen erwerben, welches die Gestaltung lernförderlichen Unterrichts ermöglicht. Es ist allerdings empirisch nur wenig geklärt, wie sich dieses Wissen im Laufe des Studiums entwickelt und ob es zur Ausbildung von Handlungsfähigkeiten beiträgt. Um derartige Wirkungsaussagen treffen zu können, müssen Instrumente entwickelt werden, die eine valide Testwertinterpretation zulassen. In diesem Beitrag werden auf Basis von im Projekt Profile-P+ entwickelten Instrumenten Validitätsanalysen zur längsschnittlichen Entwicklung des Professionswissens von Physiklehramtsstudierenden im Verlauf des Bachelorstudiums und ihrer Fähigkeiten zur Planung und Reflexion von Physikunterricht sowie zum Erklären von physikalischen Sachverhalten vor und nach dem Praxissemester dargestellt. Neben Wissenstests kamen standardisierte Performanztests zum Einsatz. Die vorliegenden Ergebnisse sprechen dafür, dass die erhobenen Messwerte im Sinne von Wirkungsaussagen interpretiert werden können. (DIPF/Orig.)}}, author = {{Vogelsang, Christoph and Borowski, Andreas and Buschhüter, David and Enkrott, Patrick and Kempin, Maren and Kulgemeyer, Christoph and Reinhold, Peter and Riese, Josef and Schecker, Horst and Schröder, Jan}}, journal = {{Zeitschrift für Pädagogik}}, number = {{4}}, pages = {{473--491}}, title = {{{Entwicklung von Professionswissen und Unterrichtsperformanz im Lehramtsstudium Physik. Analysen zu valider Testwertinterpretation}}}, doi = {{10.25656/01:23990}}, volume = {{65}}, year = {{2019}}, } @techreport{35668, author = {{Vogelsang, Christoph and Borowski, Andreas and Kulgemeyer, Christoph and Riese, Josef and Reinhold, Peter and Schecker, Horst and Buschhüter, David and Enkrott, Patrick and Kempin, Maren and Schröder, Jan}}, pages = {{40--43}}, publisher = {{Humboldt University & Johannes Gutenberg University}}, title = {{{Performance-Oriented Testing and Training in Teacher Education}}}, volume = {{12}}, year = {{2019}}, }