TY - CONF AU - Duffe, Tobias AU - Schramm, Britta AU - Kullmer, Gunter ID - 41910 TI - Experimentelle Ermittlung von Rissfortschrittskurven für hyperelastische Klebstoffe VL - DVM-Bericht 253 ER - TY - CONF AU - Duffe, Tobias AU - Kullmer, Gunter AU - Tews, Karina AU - Aubel, Tobias AU - Meschut, Gerson ID - 29499 T2 - 51. DVM-Tagung, Arbeitskreis Bruchmechanik und Bauteilsicherung TI - Bruchmechanische Lebensdauervorhersage für hyperelastische Klebverbindungen ER - TY - CONF AU - Hilleringmann, Ulrich AU - Petrov, Dmitry AU - Mwammenywa, Ibrahim AU - Kagarura, Geoffrey M. ID - 24538 KW - Art-D KW - Afrika TI - Local Power Control using Wireless Sensor System for Microgrids in Africa ER - TY - CONF AB - LLC resonant converters are typically unsuitable to be applied for wide voltage-transfer ratio applications. With a full-bridge inverter, however, they can be operated in a variety of different modulations. Most notably, by permanently turning on one MOSFET and turning off the other MOSFET of the same bridge leg, the LLC can be operated in half-bridge configuration reducing the gain by a factor of two. The resonant capacitor is hereby charged to an average voltage of half the input voltage. In this modulation, however, the switch that is permanently turned on is stressed by the complete resonant current while exhibiting no switching losses. This paper proves that the frequency-doubler modulation can better balance the losses among all MOSFETs and should be the preferred mode of operation favored over the conventional half-bridge modulation. This paper analyzes the beneficial loss distribution, proposes an on-the-fly morphing modulation and discusses potential operating strategies to further reduce the junction temperature. Furthermore, it is shown that this modulation can also be altered to achieve the asymmetrical LLC operation. Experimental measurement results show that the modulation results in a substantial decrease of the maximum MOSFET temperature and shows that the converter can be smoothly transitioned during operation from full-bridge modulation to the frequency-doubler half-bridge operation and back. AU - Rehlaender, Philipp AU - Unruh, Roland AU - Hankeln, Lars AU - Schafmeister, Frank AU - Böcker, Joachim ID - 29899 KW - Resonant converter KW - High frequency power converter KW - Switched-mode power supply KW - Converter control KW - Control methods for electrical systems SN - 978-9-0758-1537-5 T2 - 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe) TI - Frequency-Doubler Modulation for Reduced Junction Temperatures for LLC Resonant Converters Operated in Half-Bridge Configuration ER - TY - THES AU - Stolbchenko, Mykhailo ID - 42013 SN - 978-3-8440-7971-5 TI - Zwei-Rollen-Gießwalzen und thermomechanische Behandlung von dünnen Bändern aus der Aluminiumlegierung EN AW-6082 ER - TY - GEN AB - The interaction between quantum light and matter is being intensively studied for systems that are enclosed in high-$Q$ cavities which strongly enhance the light-matter coupling. However, for many applications, cavities with lower $Q$-factors are preferred due to the increased spectral width of the cavity mode. Here, we investigate the interaction between quantum light and matter represented by a $\Lambda$-type three-level system in lossy cavities, assuming that cavity losses are the dominant loss mechanism. We demonstrate that cavity losses lead to non-trivial steady states of the electronic occupations that can be controlled by the loss rate and the initial statistics of the quantum fields. The mechanism of formation of such steady states can be understood on the basis of the equations of motion. Analytical expressions for steady states and their numerical simulations are presented and discussed. AU - Rose, H. AU - Tikhonova, O. V. AU - Meier, T. AU - Sharapova, P. ID - 32236 T2 - arXiv:2109.00842 TI - Steady states of $Λ$-type three-level systems excited by quantum light in lossy cavities ER - TY - JOUR AB - Nonlinear SU(1,1) interferometers are fruitful and promising tools for spectral engineering and precise measurements with phase sensitivity below the classical bound. Such interferometers have been successfully realized in bulk and fiber-based configurations. However, rapidly developing integrated technologies provide higher efficiencies, smaller footprints, and pave the way to quantum-enhanced on-chip interferometry. In this work, we theoretically realised an integrated architecture of the multimode SU(1,1) interferometer which can be applied to various integrated platforms. The presented interferometer includes a polarization converter between two photon sources and utilizes a continuous-wave (CW) pump. Based on the potassium titanyl phosphate (KTP) platform, we show that this configuration results in almost perfect destructive interference at the output and supersensitivity regions below the classical limit. In addition, we discuss the fundamental difference between single-mode and highly multimode SU(1,1) interferometers in the properties of phase sensitivity and its limits. Finally, we explore how to improve the phase sensitivity by filtering the output radiation and using different seeding states in different modes with various detection strategies. AU - Ferreri, Alessandro AU - Santandrea, Matteo AU - Stefszky, Michael AU - Luo, Kai Hong AU - Herrmann, Harald AU - Silberhorn, Christine AU - Sharapova, Polina R. ID - 26077 JF - Quantum SN - 2521-327X TI - Spectrally multimode integrated SU(1,1) interferometer ER - TY - JOUR AU - Sukharnikov, Vladislav AU - Sharapova, Polina AU - Tikhonova, Olga ID - 40379 JF - Optics & Laser Technology KW - Electrical and Electronic Engineering KW - Atomic and Molecular Physics KW - and Optics KW - Electronic KW - Optical and Magnetic Materials SN - 0030-3992 TI - Managing spectral properties and Schmidt mode content of squeezed vacuum light using sum-frequency converter VL - 136 ER - TY - JOUR AU - Lang, Susanne AU - Topalović, Elvira ID - 41940 JF - In: Praxis Deutschunterricht TI - Komplexe Wörter richtig schreiben. Wortanalyse als Rechtschreibstrategie. VL - 4 ER - TY - JOUR AU - Noack, Christina AU - Topalović, Elvira ID - 41939 JF - In: Praxis Deutschunterricht TI - Rechtschreibstrategien und Sprachstrukturen. VL - 4 ER - TY - CONF AU - Gyger, S AU - Zichi, J AU - Schweickert, L AU - Elshaari, A.W AU - Steinhauer, S AU - Covre da Silva, S.F AU - Rastelli, A AU - Zwiller, V AU - Jöns, Klaus D. AU - Errando-Herranz, C ID - 41890 TI - Reconfigurable quantum photonics with on-chip detectors VL - 12 ER - TY - CONF AU - Klein, J AU - Sigl, L AU - Gyger, S AU - Barthelmi, K AU - Florian, M AU - Rey, S AU - Taniguchi, T AU - Watanabe, K AU - Jahnke, F AU - Kastl, C AU - Zwiller, V AU - Jöns, Klaus D. AU - Müller, K AU - Wurstbauer, U AU - Finley, J.F AU - Holleitner, A.W ID - 41891 IS - 1 TI - Engineering the Luminescence and Generation of Individual Defect Emitters in Atomically Thin MoS2 VL - 8 ER - TY - CONF AU - Basso Basset, F AU - Salusti, F AU - Schweickert, L AU - Rota, M.B AU - Tedeschi, D AU - Covre da Silva, S.F AU - Roccia, E AU - Zwiller, V AU - Jöns, Klaus D. AU - Rastelli, A AU - Trotta, R ID - 41892 IS - 7 TI - Quantum Teleportation with Imperfect Quantum Dots VL - 7 ER - TY - CONF AU - Schimpf, C AU - Reindl, M AU - Basset, F.B AU - Jöns, Klaus D. AU - Trotta, R AU - Rastelli, A ID - 41888 IS - 10 TI - Quantum dots as potential sources of strongly entangled photons: Perspectives and challenges for applications in quantum networks VL - 118 ER - TY - CONF AU - Hötger, A AU - Klein, J AU - Barthelmi, K AU - Sigl, L AU - Sigger, F AU - Männer, W AU - Gyger, S AU - Florian, M AU - Lorke, M AU - Jahnke, F AU - Taniguchi, T AU - Watanabe, K AU - Jöns, Klaus D. AU - Wurstbauer, U AU - Kastl, C AU - Müller, K AU - J. J. Finley, J.J AU - A. W. Holleitner, A.W ID - 41893 IS - 2 TI - Gate-Switchable Arrays of Quantum Light Emitters in Contacted Monolayer MoS2 van der Waals Heterodevices VL - 21 ER - TY - CONF AU - Neuwirth, J AU - Basso Basset, F AU - Rota, M. B AU - Roccia, E AU - Schimpf, C AU - Jöns, Klaus D. AU - Rastelli, A AU - Trotta, R ID - 41882 IS - 4 TI - Quantum dot technology for quantum repeaters: from entangled photon generation toward the integration with quantum memories VL - 1 ER - TY - CONF AU - Lettner, T AU - Gyger, S AU - Zeuner, K.D AU - Schweickert, L AU - Steinhauer, S AU - Hedlund, C. Reuterskiöld AU - Stroj, S AU - Rastelli, A AU - Hammar, M AU - Trotta, R AU - Jöns, Klaus D AU - Zwiller, V ID - 41883 IS - 24 TI - Strain-Controlled Quantum Dot Fine Structure for Entangled Photon Generation at 1550 nm VL - 21 ER - TY - CONF AU - Wang, Y AU - Jöns, Klaus D. AU - Sun, Z ID - 41887 IS - 1 TI - Integrated photon-pair sources with nonlinear optics VL - 8 ER - TY - CONF AU - Tuktamyshev, A AU - Fedorov, A AU - Bietti, S AU - Vichi, S AU - Zeuner, K.D AU - Jöns, Klaus D. AU - Chrastina, D AU - Tsukamoto, S AU - Zwiller, V AU - Gurioli, M AU - Sanguinetti, S ID - 41886 IS - 13 TI - Telecom-wavelength InAs QDs with low fine structure splitting grown by droplet epitaxy on GaAs (111) A vicinal substrates VL - 118 ER - TY - CONF AU - Errando-Herranz, C AU - Schöll, E AU - Picard, R AU - Laini, M AU - Gyger, S AU - Elshaari, A.W AU - Branny, A AU - Wennberg, U AU - Barbat, S AU - Renaud, T AU - Brotons-Gisbert, M AU - Bonato, C AU - Gerardot, B.D AU - Zwiller, V AU - Jöns, Klaus D. ID - 41885 IS - 4 TI - Resonance fluorescence from waveguide–coupled, strain–localized two–dimensional quantum emitters VL - 8 ER -