• Robotic process automation (RPA): maturity model for identifying RPA-suitable processes with regard to the dimension of data 

  Kutzner, Christian; Kuiter, Kilian; Jurisic, Stjepan; Stonis, Malte; Nyhuis, Peter (Stuttgart ; Dortmund : WGTL, 2022)

  For the introduction of RPA in a company, the first step is to identify suitable business processes. For this purpose, the processes are evaluated with regard to various selection criteria, such as complexity or ...
• Ultrafast switching with nonlinear optics in thin films 

  Steinecke, Morten; Jupé, Marco; Wienke, Andreas; Ristau, Detlev (Washington, DC : Optical Soc. of America, 2023)

  We demonstrate a novel, to the best of our knowledge, concept for an all-optical switch based on the optical Kerr effect in optical interference coatings. The utilization of the internal intensity enhancement in thin film ...
• Substrate-free miniaturized thin-film filters for single-element coarse wavelength division multiplexing fibers 

  Rüsseler, Anna K.; Gehrke, Philipp; Carstens, Florian; Hoffmann, Gerd-A.; Schönsee, Guido; Thiel, Axel; Vitt, Martina; Wienke, Andreas; Ristau, Detlev (Washington, DC : Optical Soc. of America, 2023)

  We have created high-precision, miniaturized, substrate-free filters, based on ion beam sputtering on a sacrificial substrate. The sacrificial layer is cost efficient and environmentally friendly and can be dissolved using ...
• Reassessment of the intrinsic bulk recombination in crystalline silicon 

  Niewelt, T.; Steinhauser, B.; Richter, A.; Veith-Wolf, B.; Fell, A.; Hammann, B.; Grant, N.E.; Black, L.; Tan, J.; Youssef, A.; Murphy, J.D.; Schmidt, J.; Schubert, M.C.; Glunz, S.W. (Amsterdam [u.a.] : NH, Elsevier, 2022)

  Characterisation and optimization of next-generation silicon solar cell concepts rely on an accurate knowledge of intrinsic charge carrier recombination in crystalline silicon. Reports of measured lifetimes exceeding the ...
• Relative-Intensity-Noise Coupling in Heterodyne Interferometers 

  Wissel, Lennart; Wittchen, Andreas; Schwarze, Thomas S.; Hewitson, Martin; Heinzel, Gerhard; Halloin, Hubert (College Park, Md. [u.a.] : American Physical Society, 2022)

  Laser interferometers are the core measurement tool in gravitational wave observatories. An important factor that can limit the performance is the relative power instability of the laser, a problem often called relative ...
• Heat pipe collectors with overheating prevention in a cost-optimized system concept: Monitoring of system performance and stagnation loads under real conditions 

  Schiebler, Bert; Köhler, Jan; Wagner, Lukas; Jensen, Julian; Giovannetti, Federico ([Amsterdam] : Elsevier B.V., 2023)

  Heat pipe collectors can significantly reduce stagnation loads in solar thermal systems due to their thermophysical properties. The paper experimentally investigates a novel system concept based on both evacuated tube ...
• Tilt-to-length coupling in LISA Pathfinder: Analytical modeling 

  Hartig, Marie-Sophie; Wanner, Gudrun (Ridge, NY : American Physical Society, 2023)

  Tilt-to-length coupling was the limiting noise source in LISA Pathfinder between 20 and 200 mHz before subtraction in postprocessing. To prevent the adding of sensing noise to the data by the subtraction process, the success ...
• Rapidly tunable femtosecond near-UV pulses from a non-collinear optical parametric oscillator 

  Geesmann, Fridolin Jakob; Mevert, Robin; Zuber, David; Morgner, Uwe (Washington, DC : Optica, 2023)

  Broadband tunable femtosecond laser pulses are of great interest in numerous fields, such as spectroscopy or imaging. Here, we report on the generation of rapidly tunable radiation in the near UV by using intracavity ...
• Continuous Gravitational Waves from Galactic Neutron Stars: Demography, Detectability, and Prospects 

  Pagliaro, Gianluca; Papa, Maria Alessandra; Ming, Jing; Lian, Jianhui; Tsuna, Daichi; Maraston, Claudia; Thomas, Daniel (London : Institute of Physics Publ., 2023)

  We study the prospects for the detection of continuous gravitational signals from normal Galactic neutron stars, i.e., nonrecycled stars. We use a synthetic population generated by evolving stellar remnants in time, according ...
• Deep Einstein@Home All-sky Search for Continuous Gravitational Waves in LIGO O3 Public Data 

  Steltner, B.; Papa, M.A.; Eggenstein, H.-B.; Prix, R.; Bensch, M.; Allen, B.; Machenschalk, B. (London : Institute of Physics Publ., 2023)

  We present the results of an all-sky search for continuous gravitational waves in the public LIGO O3 data. The search covers signal frequencies 20.0 Hz ≤ f ≤ 800.0 Hz and a spin-down range down to −2.6 × 10−9 Hz s−1, ...
• First Demonstration of 6 dB Quantum Noise Reduction in a Kilometer Scale Gravitational Wave Observatory 

  Lough, James; Schreiber, Emil; Bergamin, Fabio; Grote, Hartmut; Mehmet, Moritz; Vahlbruch, Henning; Affeldt, Christoph; Brinkmann, Marc; Bisht, Aparna; Kringel, Volker; Lück, Harald; Mukund, Nikhil; Nadji, Severin; Sorazu, Borja; Strain, Kenneth; Weinert, Michael; Danzmann, Karsten (College Park, Md. : APS, 2021)

  Photon shot noise, arising from the quantum-mechanical nature of the light, currently limits the sensitivity of all the gravitational wave observatories at frequencies above one kilohertz. We report a successful application ...
• Sensor Noise in LISA Pathfinder: In-Flight Performance of the Optical Test Mass Readout 

  Armano, M.; Audley, H.; Baird, J.; Binetruy, P.; Born, M.; Bortoluzzi, D.; Brandt, N.; Castelli, E.; Cavalleri, A.; Cesarini, A.; Cruise, A. M.; Danzmann, K.; de Deus Silva, M.; Diepholz, I.; Dixon, G.; Dolesi, R.; Ferraioli, L.; Ferroni, V.; Fitzsimons, E.D.; Flatscher, R.; Freschi, M.; García, A.; Gerndt, R.; Gesa, L.; Giardini, D.; Gibert, F.; Giusteri, R.; Grimani, C.; Grzymisch, J.; Guzman, F.; Harrison, I.; Hartig, M.-S.; Heinzel, G.; Hewitson, M.; Hollington, D.; Hoyland, D.; Hueller, M.; Inchauspé, H.; Jennrich, O.; Jetzer, P.; Johann, U.; Johlander, B.; Karnesis, N.; Kaune, B.; Killow, C.J.; Korsakova, N.; Lobo, J.A.; Liu, L.; López-Zaragoza, J. P.; Maarschalkerweerd, R.; Mance, D.; Martín, V.; Martin-Polo, L.; Martin-Porqueras, F.; Martino, J.; McNamara, P.W.; Mendes, J.; Mendes, L.; Meshksar, N.; Monsky, A.; Nofrarias, M.; Paczkowski, S.; Perreur-Lloyd, M.; Petiteau, A.; Pivato, P.; Plagnol, E.; Ramos-Castro, J.; Reiche, J.; Rivas, F.; Robertson, D.I.; Russano, G.; Sanjuan, J.; Slutsky, J.; Sopuerta, C.F.; Steier, F.; Sumner, T.; Texier, D.; Thorpe, J.I.; Vetrugno, D.; Vitale, S.; Wand, V.; Wanner, G.; Ward, H.; Wass, P. J.; Weber, W.J.; Wissel, L.; Wittchen, A.; Zweifel, P. (College Park, Md. : APS, 2021)

  We report on the first subpicometer interferometer flown in space. It was part of ESA's Laser Interferometer Space Antenna (LISA) Pathfinder mission and performed the fundamental measurement of the positional and angular ...
• Pre-merger Localization of Compact-binary Mergers with Third-generation Observatories 

  Nitz, Alexander H.; Dal Canton, Tito (2021)

  We present the prospects for the pre-merger detection and localization of binary neutron star mergers with third-generation gravitational-wave (GW) observatories. We consider a wide variety of GW networks that may be ...
• Highly-integrated signal and pump combiner in chirally-coupled-core fibers 

  Hochheim, Sven; Brockmuller, Eike; Wessels, Peter; Steinke, Michael; Koponen, Joona; Lowder, Tyson; Novotny, Steffen; Neumann, Jorg; Kracht, Dietmar (Washington, DC : Optica, 2021)

  Integrated fiber components enable compact and robust laser systems but are usually not available with specialty fibers. However, specialty fibers allow power scaling of fiber lasers and amplifiers with all advantages of ...
• Implementation of a new weave -based search pipeline for continuous gravitational waves from known binary systems 

  Mukherjee, Arunava; Prix, Reinhard; Wette, Karl (Melville, NY : Inst., 2023)

  Scorpius X-1 (Sco X-1) has long been considered one of the most promising targets for detecting continuous gravitational waves with ground-based detectors. Observational searches for Sco X-1 have achieved substantial ...
• 4-OGC: Catalog of Gravitational Waves from Compact Binary Mergers 

  Nitz, Alexander H.; Kumar, Sumit; Wang, Yi-Fan; Kastha, Shilpa; Wu, Shichao; Schäfer, Marlin; Dhurkunde, Rahul; Capano, Collin D. (London : Institute of Physics Publ., 2023)

  We present the fourth Open Gravitational-wave Catalog (4-OGC) of binary neutron star (BNS), binary black hole (BBH), and neutron star-black hole (NSBH) mergers. The catalog includes observations from 2015 to 2020 covering ...
• Mock data study for next-generation ground-based detectors: The performance loss of matched filtering due to correlated confusion noise 

  Wu, Shichao; Nitz, Alexander H. (Ridge, NY : American Physical Society, 2023)

  The next-generation (3G/XG) ground-based gravitational-wave (GW) detectors such as Einstein Telescope (ET) and Cosmic Explorer (CE) will begin observing in the next decade. Due to the extremely high sensitivity of these ...
• Charging of free-falling test masses in orbit due to cosmic rays: Results from LISA Pathfinder 

  Armano, M.; Audley, H.; Baird, J.; Binetruy, P.; Born, M.; Bortoluzzi, D.; Castelli, E.; Cavalleri, A.; Cesarini, A.; Cruise, A.M.; Danzmann, K.; De Deus, Silva M.; Diepholz, I.; Dixon, G.; Dolesi, R.; Ferraioli, L.; Ferroni, V.; Fitzsimons, E.D.; Freschi, M.; Gesa, L.; Giardini, D.; Gibert, F.; Giusteri, R.; Grimani, C.; Grzymisch, J.; Harrison, I.; Hartig, M.-S.; Heinzel, G.; Hewitson, M.; Hollington, D.; Hoyland, D.; Hueller, M.; Inchauspé, H.; Jennrich, O.; Jetzer, P.; Karnesis, N.; Kaune, B.; Killow, C.J.; Korsakova, N.; Lobo, J.A.; López-Zaragoza, J.P.; Maarschalkerweerd, R.; Mance, D.; Martín, V.; Martino, J.; Martin-Polo, L.; Martin-Porqueras, F.; McNamara, P.W.; Mendes, J.; Mendes, L.; Meshksar, N.; Nofrarias, M.; Paczkowski, S.; Perreur-Lloyd, M.; Petiteau, A.; Plagnol, E.; Ramos-Castro, J.; Reiche, J.; Rivas, F.; Robertson, D.I.; Russano, G.; Slutsky, J.; Sopuerta, C.F.; Sumner, T.J.; Texier, D.; Thorpe, J.I.; Vetrugno, D.; Vitale, S.; Wanner, G.; Ward, H.; Wass, P.J.; Weber, W.J.; Wissel, L.; Wittchen, A.; Zweifel, P. (Melville, NY : Inst., 2023)

  A comprehensive summary of the measurements made to characterize test-mass charging due to the space environment during the LISA Pathfinder mission is presented. Measurements of the residual charge of the test mass after ...
• Inconsistent black hole kick estimates from gravitational-wave models 

  Borchers, Angela; Ohme, Frank (Bristol : IOP Publ., 2023)

  The accuracy of gravitational-wave (GW) models of compact binaries has traditionally been addressed by the mismatch between the model and numerical-relativity (NR) simulations. This is a measure of the overall agreement ...
• Variance of the Hellings-Downs correlation 

  Allen, Bruce (Ridge, NY : American Physical Society, 2023)

  Gravitational waves (GWs) create correlations in the arrival times of pulses from different pulsars. The expected correlation μ(γ) as a function of the angle γ between the directions to two pulsars was calculated by Hellings ...

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