• Quantum-Enhanced Advanced LIGO Detectors in the Era of Gravitational-Wave Astronomy 

  Tse, M.; Yu, H.; Kijbunchoo, N.; Fernandez-Galiana, A.; Dupej, P.; Barsotti, L.; Blair, C.D.; Brown, D.D.; Dwyer, S.E.; Effler, A. (College Park, MD : American Physical Society, 2019)

  The Laser Interferometer Gravitational Wave Observatory (LIGO) has been directly detecting gravitational waves from compact binary mergers since 2015. We report on the first use of squeezed vacuum states in the direct ...
• Picometer-Stable Hexagonal Optical Bench to Verify LISA Phase Extraction Linearity and Precision 

  Schwarze, Thomas S.; Barranco, German Fernandez; Penkert, Daniel; Kaufer, Marina; Gerberding, Oliver; Heinzel, Gerhard (College Park, MD : American Physical Society, 2019)

  The Laser Interferometer Space Antenna (LISA) and its metrology chain have to fulfill stringent performance requirements to enable the space-based detection of gravitational waves. This implies the necessity of performance ...
• Spatially-targeted laser fabrication of multi-metal microstructures inside a hydrogel 

  Machida, Manan; Niidome, Takuro; Onoe, Hiroaki; Heisterkamp, Alexander; Terakawa, Mitsohiro (Washington, DC : OSA - The Optical Society, 2019)

  The spatially-targeted fabrication of bimetallic microstructures coexisting in the supporting hydrogel is demonstrated by multi-photon photoreduction. Microstructures composed of gold and silver were fabricated along a ...
• Measurement of Ultralow Heating Rates of a Single Antiproton in a Cryogenic Penning Trap 

  Borchert, M.J.; Blessing, P.E.; Devlin, J.A.; Harrington, J.A.; Higuchi, T.; Morgner, J.; Smorra, C.; Wursten, E.; Bohman, M.; Wiesinger, M.; Mooser, A.; Blaum, K.; Matsuda, Y.; Ospelkaus, C.; Quint, W.; Walz, J.; Yamazaki, Y.; Ulmer, S. (College Park, MD : American Physical Society, 2019)

  We report on the first detailed study of motional heating in a cryogenic Penning trap using a single antiproton. Employing the continuous Stern-Gerlach effect we observe cyclotron quantum transition rates of 6(1) quanta/h ...
• LISA pathfinder performance confirmed in an open-loop configuration: Results from the free-fall actuation mode 

  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.; Gibert, F.; Giardini, D.; 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.; Korsakova, N.; Killow, C.J.; Lobo, J.A.; Liu, L.; López-Zaragoza, J.P.; Maarschalkerweerd, R.; Mance, D.; Meshksar, N.; Martín, V.; Martin-Polo, L.; Martino, J.; Martin-Porqueras, F.; Mateos, I.; McNamara, P.W.; Mendes, J.; Mendes, L.; Nofrarias, M.; Paczkowski, S.; Perreur-Lloyd, M.; Petiteau, A.; Pivato, P.; Plagnol, E.; Ramos-Castro, J.; Reiche, J.; Robertson, D.I.; Rivas, F.; Russano, G.; Slutsky, J.; Sopuerta, C.F.; Sumner, T.; 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. (College Park, MD : American Physical Society, 2019)

  We report on the results of the LISA Pathfinder (LPF) free-fall mode experiment, in which the control force needed to compensate the quasistatic differential force acting on two test masses is applied intermittently as a ...
• Increasing the Astrophysical Reach of the Advanced Virgo Detector via the Application of Squeezed Vacuum States of Light 

  Acernese, F.; Agathos, M.; Aiello, L.; Allocca, A.; Amato, A.; Ansoldi, S.; Antier, S.; Arène, M.; Arnaud, N.; Ascenzi, S.; Astone, P.; Aubin, F.; Virgo Collaboration (College Park, MD : American Physical Society, 2019)

  Current interferometric gravitational-wave detectors are limited by quantum noise over a wide range of their measurement bandwidth. One method to overcome the quantum limit is the injection of squeezed vacuum states of ...
• In-Orbit Performance of the GRACE Follow-on Laser Ranging Interferometer 

  Abich, K.; Abramovici, A.; Amparan, B.; Baatzsch, A.; Okihiro, B.B.; Barr, D.C.; Bize, M.P.; Bogan, C.; Braxmaier, C.; Burke, M.J.; Clark, K.C.; Dahl, C.; Dahl, K.; Danzmann, K.; Davis, M.A.; De, Vine, G.; Dickson, J.A.; Dubovitsky, S.; Eckardt, A.; Ester, T.; Barranco, G.F.; Flatscher, R.; Flechtner, F.; Folkner, W.M.; Francis, S.; Gilbert, M.S.; Gilles, F.; Gohlke, M.; Grossard, N.; Guenther, B.; Hager, P.; Hauden, J.; Heine, F.; Heinzel, G.; Herding, M.; Hinz, M.; Howell, J.; Katsumura, M.; Kaufer, M.; Klipstein, W.; Koch, A.; Kruger, M.; Larsen, K.; Lebeda, A.; Lebeda, A.; Leikert, T.; Liebe, C.C.; Liu, J.; Lobmeyer, L.; Mahrdt, C.; Mangoldt, T.; McKenzie, K.; Misfeldt, M.; Morton, P.R.; Müller, V.; Murray, A.T.; Nguyen, D.J.; Nicklaus, K.; Pierce, R.; Ravich, J.A.; Reavis, G.; Reiche, J.; Sanjuan, J.; Schütze, D.; Seiter, C.; Shaddock, D.; Sheard, B.; Sileo, M.; Spero, R.; Spiers, G.; Stede, G.; Stephens, M.; Sutton, A.; Trinh, J.; Voss, K.; Wang, D.; Wang, R.T.; Ware, B.; Wegener, H.; Windisch, S.; Woodruff, C.; Zender, B.; Zimmermann, M. (College Park, MD : American Physical Society, 2019)

  The Laser Ranging Interferometer (LRI) instrument on the Gravity Recovery and Climate Experiment (GRACE) Follow-On mission has provided the first laser interferometric range measurements between remote spacecraft, separated ...
• Hydrogels for targeted waveguiding and light diffusion 

  Johannsmeier, Sonja; Torres-Mapa, Maria L.; Dipresa, Daniele; Ripken, Tammo; Heinemann, Dag; Heisterkamp, Alexander (Washington, DC : OSA - The Optical Society, 2019)

  Advances in photomedicine and optogenetics have defined the problem of efficient light delivery in vivo. Recently, hydrogels have been proposed as alternatives to glass or polymer fibers. These materials provide remarkable ...
• Deep-learning continuous gravitational waves 

  Dreissigacker, Christoph; Sharma, Rahul; Messenger, Chris; Zhao, Ruining; Prix, Reinhard (College Park, MD : American Physical Society, 2019)

  We present a first proof-of-principle study for using deep neural networks (DNNs) as a novel search method for continuous gravitational waves (CWs) from unknown spinning neutron stars. The sensitivity of current ...
• Diode pumped cw ruby laser 

  Luhs, W.; Wellegehausen, B. (Washington, DC : OSA - The Optical Society, 2019)

  Cw laser oscillation of ruby at 694 nm in linear and ring resonators is reported for the first time, pumped with a 1 W laser diode at 405 nm as well as 445 nm. The ruby laser operates at room temperature with a threshold ...
• GWTC-1: A Gravitational-Wave Transient Catalog of Compact Binary Mergers Observed by LIGO and Virgo during the First and Second Observing Runs 

  Abbott, B.P.; Abbott, R.; Abbott, T.D.; Abraham, S.; Acernese, F.; Ackley, K.; Adams, C.; Adhikari, R.X.; Adya, V.B.; LIGO Scientific Collaboration and Virgo Collaboration (College Park, MD : American Physical Society, 2019)

  We present the results from three gravitational-wave searches for coalescing compact binaries with component masses above 1 Ma™ during the first and second observing runs of the advanced gravitational-wave detector network. ...
• Femtosecond laser induced step-like structures inside transparent hydrogel due to laser induced threshold reduction 

  Saerchen, Emanuel; Liedtke-Gruener, Susann; Kopp, Maximilian; Heisterkamp, Alexander; Lubatschowski, Holger; Ripken, Tammo (San Francisco, CA : Public Library of Science (PLoS), 2019)

  In the area of laser material processing, versatile applications for cutting glasses and transparent polymers exist. However, parasitic effects such as the creation of step-like structures appear when laser cutting inside ...
• Experimental and theoretical study of the formation process of photopolymer based self-written waveguides 

  Suar, Monali; Melchert, Oliver; Rahlves, Maik; Roth, Bernhard (Washington, DC : OSA - The Optical Society, 2019)

  The realization of optical interconnects between multimode (MM) optical fibers and waveguides based on a self-writing process in photopolymer media represents an efficient approach for fast and easy-to-implement connection ...
• Dual infrared limits of 6d N=(2,0)theory 

  Lechtenfeld, Olaf; Popov, Alexander D. (Amsterdam : Elsevier B.V., 2019)

  Compactifying type A N−1 6d N=(2,0)supersymmetric CFT on a product manifold M 4 ×Σ 2 =M 3 ×S˜ 1 ×S 1 ×I either over S 1 or over S˜ 1 leads to maximally supersymmetric 5d gauge theories on M 4 ×I or on M 3 ×Σ 2 , respectively. ...
• Broadband forward scattering from dielectric cubic nanoantenna in lossless media 

  Terekhov, P.D.; Shamkhi, H.K.; Gurvitz, E.A.; Baryshnikova, K.V.; Evlyukhin, A.B.; Shalin, A.S.; Karabchevsky, A. (Washington, DC : OSA - The Optical Society, 2019)

  Dielectric photonics platform provides unique possibilities to control light scattering via utilizing high-index dielectric nanoantennas with peculiar optical signatures. Despite the intensively growing field of all-dielectric ...
• Compact Multifringe Interferometry with Subpicometer Precision 

  Isleif, Katharina-Sophie; Heinzel, Gerhard; Mehmet, Moritz; Gerberding, Oliver (College Park, MD : American Physical Society, 2019)

  Deep-frequency-modulation interferometry combines optical minimalism with multifringe readout. However, precision is key for applications such as optical gradiometers for satellite geodesy or as dimensional sensors for ...
• Core-shell particles as efficient broadband absorbers in infrared optical range 

  Evlyukhin, Andrey B.; Nerkararyan, Khachatur V.; Bozhevolnyi, Sergey I. (Washington, DC : OSA - The Optical Society, 2019)

  We demonstrate that efficient broadband absorption of infrared radiation can be obtained with deeply subwavelength spherical dielectric particles covered by a thin metal layer. Considerations based on Mie theory and the ...
• The space atom laser: An isotropic source for ultra-cold atoms in microgravity 

  Meister, M.; Roura, A.; Rasel, E.M.; Schleich, W.P. (Bristol : Institute of Physics Publishing, 2019)

  Atom laser experiments with Bose-Einstein condensates (BECs) performed in ground-based laboratories feature a coherent and directed beam of atoms which is accelerated by gravity. In microgravity the situation is fundamentally ...
• The TRAPSENSOR facility: An open-ring 7 tesla Penning trap for laser-based precision experiments 

  Gutiérrez, M.J.; Berrocal, J.; Cornejo, J.M.; Domínguez, F.; Del Pozo, J.J.; Arrazola, I.; Bañuelos, J.; Escobedo, P.; Kaleja, O.; Lamata, L.; Rica, R.A.; Schmidt, S.; Block, M.; Solano, E.; Rodríguez, D. (Bristol : Institute of Physics Publishing, 2019)

  A Penning-trap facility for high-precision mass spectrometry based on a novel detection method has been built. This method consists in measuring motional frequencies of singly-charged ions trapped in strong magnetic fields ...
• Urban climate under change [UC]2 - A national research programme for developing a building-resolving atmospheric model for entire city regions 

  Scherer, D.; Antretter, F.; Bender, S.; Cortekar, J.; Emeis, S.; Fehrenbach, U.; Gross, G.; Halbig, G.; Hasse, J.; Maronga, B.; Raasch, S.; Scherber, K. (Stuttgart : Gebrueder Borntraeger Verlagsbuchhandlung, 2019)

  Large cities and urban regions are confronted with rising pressure by environmental pollution, impacts of climate change, as well as natural and health hazards. They are characterised by heterogeneous mosaics of urban ...

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