Oblique photons, plasmons, and current-plasmons in relativistic plasmas and their topological implicationsPhotons in vacuum are transverse in any inertial frame; longitudinal photons only exist virtually. By developing a manifestly covariant theory for electromagnetic excitations in relativistic plasmas…Hong Qin, Eric Palmerduca·Apr 8, 2024SaveLearn
A birdcage resonant antenna for helicon wave generation in TORPEXA birdcage resonant helicon antenna is designed, mounted and tested in the toroidal device TORPEX. The birdcage resonant antenna is an alternative to the usual Boswell or half-helical antenna designs…Simon Vincent, Philippe Guittienne, Patrick Quigley et al.·Apr 8, 2024SaveLearn
Comment to the paper J. Yan et al. Experimental confirmation of driving pressure boosting and smoothing for hybrid-drive inertial fusion at the 100-kJ laser facility [Nature Communications (2023) 14:5782]The lack of key experimental data leads us to the conclusion that, the published experimental confirmation of driving pressure boosting and smoothing for hybrid-drive inertial fusion is not credible.Ke Lan·Apr 6, 2024SaveLearn
Doubling Fusion Power with Volumetric Optimization in Magnetic Confinement Fusion DevicesA technique, volumetric power optimization, is presented for enhancing the power output of magnetic confinement fusion devices. Applied to a tokamak, this approach involves shifting the burning…J. F. Parisi, J. W. Berkery, A. Sladkomedova et al.·Apr 5, 2024SaveLearn
Quadrilateral Particle Arrangement within Shocks in a Two-Dimensional Dusty PlasmaThe microscopic structure within a two-dimensional shock was studied using data from a dusty plasma experiment. A single layer of charged microparticles, levitated in a glow-discharge plasma, was…Anton Kananovich, J. Goree·Apr 3, 2024SaveLearn
Direct, simple, and efficient computation of all components of the virtual-casing magnetic field in axisymmetric geometries with Kapur-Rokhlin quadratureIn a recent publication (Toler et al. 2023), we demonstrated that for axisymmetric geometries, the Kapur-Rokhlin quadrature rule provided an efficient and high-order accurate method for computing the…Evan Toler, Antoine Cerfon, Dhairya Malhotra·Apr 3, 2024SaveLearn
Exploration of the parameter space of quasisymmetric stellarator vacuum fields through adjoint optimisationOptimising stellarators for quasisymmetry leads to strongly reduced collisional transport and energetic particle losses compared to unoptimised configurations. Though stellarators with precise…Richard Nies, Elizabeth J. Paul, Dario Panici et al.·Apr 2, 2024SaveLearn
Benign saturation of ideal ballooning instability in a high-performance stellaratorTo examine the robustness of the designed 5% β-limit for high-performance operation in the W7-X stellarator, we undertake nonlinear magnetohydrodynamic (MHD) simulations of pressure-driven…Yao Zhou, K. Aleynikova, Chang Liu et al.·Apr 2, 2024SaveLearn
Attosecond gamma-ray flashes and electron-positron pairs in dyadic laser interaction with micro-wireThe interaction of an ultra-intense laser with matter is an efficient source of high-energy particles, with efforts directed towards narrowing the divergence and simultaneously increasing the…P. Hadjisolomou, T. M. Jeong, P. Valenta et al.·Apr 2, 2024SaveLearn
Modeling the low-pressure high-voltage branch of the Paschen curve for hydrogen and deuteriumA physical and numerical model of the Townsend discharge in molecular hydrogen and deuterium has been developed to meet the needs of designing a plasma-based switching device for power grid…Alexander V. Khrabrov, David. J. Smith, Igor D. Kaganovich·Apr 1, 2024SaveLearn
Characterization of uncertainties in electron-argon collision cross sectionsThe predictive capability of a plasma discharge model depends on accurate representations of electron-impact collision cross sections, which determine the key reaction rates and transport properties…Seung Whan Chung, Todd A. Oliver, Laxminarayan L. Raja et al.·Mar 30, 2024SaveLearn
Investigation of self-focusing of Gaussian laser beams within magnetized plasma via source-dependent expansion methodSelf-focusing emerges as a nonlinear optical phenomenon resulting from an intense laser field and plasma interaction. This study investigates the self-focusing behavior of Gaussian laser beams within…A. A. Molavi Choobini, S. S. Ghaffari-Oskooei·Mar 30, 2024SaveLearn
Structure and Dynamics of Magneto-Inertial, Differentially Rotating Laboratory PlasmasWe present a detailed characterization of the structure and evolution of differentially rotating plasmas driven on the MAGPIE pulsed-power generator (1.4 MA peak current, 240 ns rise-time). The…V. Valenzuela-Villaseca, L. G. Suttle, F. Suzuki-Vidal et al.·Mar 29, 2024SaveLearn
An ultraviolet photodetector based on conductive hydrogenated TiO2 film prepared by radio frequency atmospheric pressure plasmaThe growing demand for real-time ultraviolet (UV) monitoring calls for a simple, rapid, and low-cost strategy to prepare UV photodetectors. We prepare a wearable real-time UV photodetector based on…Yu Zhang, Haozhe Wang, Jie Cui et al.·Mar 29, 2024SaveLearn
Laser Interactions with Gas Jets: EMP Emission and Nozzle DamageUnderstanding the physics of electromagnetic pulse emission and nozzle damage is critical for the long-term operation of laser experiments with gas targets, particularly at facilities looking to…Philip Wykeham Bradford, Valeria Ospina-Bohorquez, Michael Ehret et al.·Mar 28, 2024SaveLearn
All-optical blast wave control of laser wakefield acceleration in near critical plasmaWe propose a novel method for changing the length of laser wakefield electron acceleration in a gas jet by a cylindrical blast wave created by a perpendicularly focused nanosecond laser pulse. The…I. Tsymbalov, D. Gorlova, K. Ivanov et al.·Mar 28, 2024SaveLearn
Predicting Excitation Energies in Warm Dense MatterIn a dense plasma environment, the energy levels of an ion shift relative to the isolated ion values. This shift is reflected in the optical spectrum of the plasma and can be measured in, for…T. Q. Thelen, D. A. Rehn, C. J. Fontes et al.·Mar 28, 2024SaveLearn
Compression and acceleration of ions by ultra-short ultra-intense azimuthally-polarized lightAn efficient plasma compression scheme by azimuthally-polarized (AP) light is proposed. An AP light possesses a donut-like intensity pattern, enabling it to compress and accelerate ions toward the…Da-Chao Deng, Hui-Chun Wu·Mar 28, 2024SaveLearn
Mechanisms of THz Radiation Generation in Multi-Color Laser-Plasma Interactions: A Review Across Diverse MediaThe exploration of Terahertz (THz) waves has captivated researchers across diverse scientific disciplines such as physics, spectroscopy, chemistry, biology, and engineering, driven by the myriad…A. A. Molavi Choobini, S. S. Ghaffari-Oskooei, M. Shahmansouri et al.·Mar 27, 2024SaveLearn
Emulation Techniques for Scenario and Classical Control Design of Tokamak PlasmasThe optimisation of scenarios and design of real-time-control in tokamaks, especially for machines still in design phase, requires a comprehensive exploration of solutions to the Grad-Shafranov (GS)…A. Agnello, N. C. Amorisco, A. Keats et al.·Mar 27, 2024SaveLearn
On double-layer and reverse discharge creation during long positive voltage pulses in a bipolar HiPIMS dischargeTime-resolved Langmuir probe diagnostics at the discharge centerline and at three distances from the target (35mm, 60mm, and 100mm) was carried out during long positive voltage pulses (a duration of…Andrea Dagmar Pajdarová, Tomáš Kozák, Tomáš Tölg et al.·Mar 27, 2024SaveLearn
Conditions for Relativistic Magnetic Reconnection under the Presence of Shear Flow and Guide FieldThe scaling of the relativistic reconnection outflow speed is studied in the presence of both shear flows parallel to the reconnecting magnetic fields and guide fields pointing out of the…Sarah Peery, Yi-Hsin Liu, Xiaocan Li·Mar 27, 2024SaveLearn
Global fluid turbulence simulations in the SOL of a stellarator island divertorIsothermal fluid turbulence simulations have been performed in the edge and scrape-off-layer (SOL) of an analytic stellarator configuration with an island divertor, thereby providing numerical…Brendan Shanahan, David Bold, Ben Dudson·Mar 27, 2024SaveLearn
DC-Augmented Dielectric Barrier Discharge (DCA-DBD)Time-dependent multiphysics interactions that drive the energy transfer in electromechanical systems are poorly understood. We probe dielectric barrier discharge (DBD) with an external DC-augmented…Anthony Tang, Alberto Aliseda, Alexander Mamishev et al.·Mar 26, 2024SaveLearn
Coupled Nonlinear Schrödinger (CNLS) Equations for two interacting electrostatic wavepackets in a non-Maxwellian fluid plasma modelThe nonlinear dynamics of two co-propagating electrostatic wavepackets, characterized by different wavenumbers and amplitudes, in a 1D non-magnetized plasma fluid model is considered, from first…N. Lazarides, Ioannis Kourakis·Mar 26, 2024SaveLearn