• Ultraviolet supercontinuum generation using a differentially-pumped integrated glass chip 

  Wanie, Vincent; Barbato, Pasquale; Hahne, Josina; Ryabchuk, Sergey; Wahid, Ammar Bin; Amorim, David; Månsson, Erik P.; Trabattoni, Andrea; Osellame, Roberto; Martínez Vázquez, Rebeca; Calegari, Francesca (Bristol : IOP Publishing, 2024)

  We investigate the generation of ultrabroadband femtosecond ultraviolet (UV) radiation via third-order harmonic generation in highly confined gas media. A dual-stage differential-pumping scheme integrated into a glass ...
• Exploring the fundamental limits of integrated beam splitters with arbitrary phase via topology optimization 

  Nanda, Abhishek; Kues, Michael; Calà Lesina, Antonio (Washington, DC : Soc., 2024)

  Optical beam splitters are essential for classical and quantum photonic on-chip systems. In integrated optical technology, a beam splitter can be implemented as a beam coupler with two input and two output ports. The output ...
• Convolutional neural network for retrieval of the time-dependent bond length in a molecule from photoelectron momentum distributions 

  Shvetsov-Shilovski, N.I.; Lein, M. (Bristol : IOP Publ., 2024)

  We apply deep learning for retrieval of the time-dependent bond length in the dissociating two-dimensional H+2 molecule using photoelectron momentum distributions. We consider a pump-probe scheme and calculate electron ...
• Branching Exponents of Synthetic Vascular Trees under Different Optimality Principles 

  Jessen, Etienne; Steinbach, Marc C.; Debbaut, Charlotte; Schillinger, Dominik (New York, NY : IEEE, 2023)

  Objective: The branching behavior of vascular trees is often characterized using Murray's law. We investigate its validity using synthetic vascular trees generated under global optimization criteria. Methods: Our synthetic ...
• Metallic nanostructures as electronic billiards for nonlinear terahertz photonics 

  Babushkin, Ihar; Shi, Liping; Demircan, Ayhan; Morgner, Uwe; Herrmann, Joachim; Husakou, Anton (College Park, MD : APS, 2023)

  The optical properties of metallic nanoparticles are most often considered in terms of plasmons, the coupled states of light and quasifree electrons. Confinement of electrons inside the nanostructure leads to another, very ...
• Self-bound crystals of antiparallel dipolar mixtures 

  Arazo, Maria; Gallemí, Albert; Guilleumas, Montserrat; Mayol, Ricardo; Santos, Luis (College Park, MD : APS, 2023)

  Recent experiments have created supersolids of dipolar quantum droplets. The resulting crystals lack, however, a genuine cohesive energy and are maintained by the presence of an external confinement, bearing a resemblance ...
• Non-equilibrium dynamics of dipolar polarons 

  Volosniev, Artem G.; Bighin, Giacomo; Santos, Luis; Peña Ardila, Luisllu A. (Amsterdam : SciPost Foundation, 2023)

  We study the out-of-equilibrium quantum dynamics of dipolar polarons, i.e., impurities immersed in a dipolar Bose-Einstein condensate, after a quench of the impurity-boson interaction. We show that the dipolar nature of ...
• Long-Persistent Photoconductivity in Transistor Structures Made from Thin ZrS3-Films 

  Thole, Lars; Ben Kalefa, Asem; Belke, Christopher; Locmelis, Sonja; Bockhorn, Lina; Behrens, Peter; Haug, Rolf J. (Washington, DC : ACS Publications, 2023)

  In the search for two-dimensional (2D) materials, transition-metal trichalcogenides (TMTCs) have emerged as promising candidates for optoelectronic applications. Here, we show a very long-lasting persistent photoconductivity ...
• How to build an optical filter with an atomic vapor cell 

  Uhland, Denis; Dillmann, Helena; Wang, Yijun; Gerhardt, Ilja ([Bad Honnef] : Dt. Physikalische Ges., 2023)

  The nature of atomic vapors, their natural alignment with interatomic transitions, and their ease of use make them highly suited for spectrally narrow-banded optical filters. Atomic filters come in two flavors: a filter ...
• Tunable in situ near-UV pulses by transient plasmonic resonance in nanocomposites 

  Husakou, Anton; Babushkin, Ihar; Fedotova, Olga; Rusetsky, Ryhor; Smirnova, Tatsiana; Khasanov, Oleg; Fedotov, Alexander; Sapaev, Usman; Apostolova, Tzveta (Washington, DC : Optica, 2023)

  We propose a concept for generation of ultrashort pulses based on transient field-induced plasmonic resonance in nanoparticle composites. Photoionization and free-carrier plasma generation change the susceptibility of ...
• Numerical studies of different mixed phase-field fracture models for simulating crack propagation in punctured EPDM strips 

  Mang, K.; Wick, T. (Barcelona, Spain : International Centre for Numerical Methods in Engineering (CIMNE), 2021)

  We consider a monolithic phase-field description for fractures in nearly incompressible materials, i.e., carbon black filled ethylene propylene diene monomer rubber (EPDM). A quasi-static phase-field fracture problem is ...
• Clock transitions versus Bragg diffraction in atom-interferometric dark-matter detection 

  Derr, Daniel; Giese, Enno ([Melville, NY] : AIP Publishing, 2023)

  Atom interferometers with long baselines are envisioned to complement the ongoing search for dark matter. They rely on atomic manipulation based on internal (clock) transitions or state-preserving atomic diffraction. ...
• Lasing Effect in Symmetrical van der Waals Heterostructured Metasurfaces Due to Lattice-Induced Multipole Coupling 

  Prokhorov, Alexei V.; Gubin, Mikhail Yu.; Shesterikov, Alexander V.; Arsenin, Aleksey V.; Volkov, Valentyn S.; Evlyukhin, Andrey B. (Washington, DC : ACS Publ., 2023)

  New practical ways to reach the lasing effect in symmetrical metasurfaces have been developed and theoretically demonstrated. Our approach is based on excitation of the resonance of an octupole quasi-trapped mode (OQTM) ...
• Optimal Ramsey interferometry with echo protocols based on one-axis twisting 

  Scharnagl, M.S.; Kielinski, T.; Hammerer, K. (Woodbury, NY : Inst., 2023)

  We study a variational class of generalized Ramsey protocols that include two one-axis twisting (OAT) operations, one performed before the phase imprint and the other after. In this framework, we optimize the axes of the ...
• Single-Element Dual-Interferometer for Precision Inertial Sensing: Sub-Picometer Structural Stability and Performance as a Reference for Laser Frequency Stabilization 

  Huarcaya, Victor; Dovale Álvarez, Miguel; Yamamoto, Kohei; Yang, Yichao; Gozzo, Stefano; Martínez Cano, Pablo; Mehmet, Moritz; Esteban Delgado, Juan José; Jia, Jianjun; Heinzel, Gerhard (Basel : MDPI, 2023)

  Future GRACE-like geodesy missions could benefit from adopting accelerometer technology akin to that of the LISA Pathfinder, which employed laser interferometric readout at the sub-picometer level in addition to the ...
• Assembly cell for the manufacturing of flexible solar modules in building integrated photovoltaics 

  Blankemeyer, Sebastian; Schulte-Huxel, Henning; Wirtz, Wiebke; Raatz, Annika (Amsterdam [u.a.] : Elsevier, 2024)

  The current use of photovoltaics is often limited to the utilization of roof surfaces or ground-mounted systems. In particular, building integrated photovoltaics (BIPV) have enormous potential to make energy production ...
• Convergence of Dynamics on Inductive Systems of Banach Spaces 

  van Luijk, Lauritz; Stottmeister, Alexander; Werner, Reinhard F. (Cham (ZG) : Springer International Publishing AG, 2024)

  Many features of physical systems, both qualitative and quantitative, become sharply defined or tractable only in some limiting situation. Examples are phase transitions in the thermodynamic limit, the emergence of classical ...
• Analytic States in Quantum Field Theory on Curved Spacetimes 

  Strohmaier, Alexander; Witten, Edward (Cham (ZG) : Springer International Publishing AG, 2024)

  We discuss high energy properties of states for (possibly interacting) quantum fields in curved spacetimes. In particular, if the spacetime is real analytic, we show that an analogue of the timelike tube theorem and the ...
• Macroscopic quantum entanglement between an optomechanical cavity and a continuous field in presence of non-Markovian noise 

  Direkci, S.; Winkler, K.; Gut, C.; Hammerer, K.; Aspelmeyer, M.; Chen, Y. (College Park, MD : APS, 2024)

  Probing quantum entanglement with macroscopic objects allows us to test quantum mechanics in new regimes. One way to realize such behavior is to couple a macroscopic mechanical oscillator to a continuous light field via ...
• Frieze patterns over algebraic numbers 

  Cuntz, Michael; Holm, Thorsten; Pagano, Carlo (Hoboken, NJ : Wiley, 2024)

  Conway and Coxeter have shown that frieze patterns over positive rational integers are in bijection with triangulations of polygons. An investigation of frieze patterns over other subsets of the complex numbers has recently ...

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