Explanipedia

Anomalous Magnetization Spikes in the Locally Corrected Nyström Discretization of Static Volume Integral Equation using Tetrahedral Cells Open

John C. Young, Robert J. Adams, Stephen D. Gedney · 2024

A locally corrected Nyström (LCN) discretization of a magnetostatic volume integral equation is presented. Anomalous magnetization spikes can occur when the underlying mesh uses tetrahedral cells regardless of discretization order. The mec…

Compressed Fast Multipole Representations for Homogeneous 3-D Kernels Open

Robert J. Adams, John C. Young, Stephen D. Gedney · 2024

For homogeneous kernels, the memory requirements associated with H2 representations of integral equation matrices can be reduced by incorporating translational invariance. Starting with a non-translationally invariant H2 representation, th…

PetaVolts per meter Plasmonics: introducing extreme nanoscience as a route towards scientific frontiers Open

Aakash A. Sahai, Mark Gołkowski, Stephen D. Gedney, T. Katsouleas, G. Andonian , et al. · 2023

A new class of plasmons has opened access to unprecedented PetaVolts per meter electromagnetic fields which can transform the paradigm of scientific and technological advances. This includes non-collider searches in fundamental physics in …

Isotropic Micromagnetic Field Model of Ferromagnetic Stress Effects Open

Carl S. Schneider, Stephen D. Gedney, Netzahualcoyotl Ojeda-Ayala, Mark A. Travers, Joseph J. Gedney , et al. · 2023

PetaVolts per meter Plasmonics: Snowmass21 White Paper Open

Aakash A. Sahai, Mark Gołkowski, Stephen D. Gedney, T. Katsouleas, G. Andonian , et al. · 2022

Plasmonic modes offer the potential to achieve PetaVolts per meter fields, that would transform the current paradigm in collider development in addition to non-collider searches in fundamental physics. PetaVolts per meter plasmonics relies…

Measurement and Gaussian model of ferromagnetic viscosity Open

Carl S. Schneider, Stephen D. Gedney, Mark A. Travers, Joseph J. Gedney, Kyle E. Redmond · 2022

The exponential model of ferromagnetic susceptibility for steel has been extended to include ferromagnetic viscosity by comparing measured eddy current free susceptibility with the static exponential model. Viscous susceptibility and visco…

2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting Open

Branislav M. Notaroš, Dejan S. Filipović, Andrew F. Peterson, Stephen D. Gedney, David Jackson , et al. · 2021

Near-field radiative Wireless Power Transfer (WPT)has the advantage of high-power WPT. In this paper, an all textile high-power WPT receiver is realized for the first time, using an embroidered coil and a printed tuning capacitor on a text…

Efficient Jacobian Matrix Determination for H2 Representations of Nonlinear Electrostatic Surface Integral Equations Open

Duncan Young, Robert Adams, Stephen D. Gedney · 2021

In this paper, a nonlinear electrostatic surface integral equation is presented that is suitable for predicting corrosion-related fields. Nonlinear behavior arises due to electrochemical reactions at polarized surfaces. Hierarchical H2 mat…

Dynamic exponential model of ferromagnetic hysteresis Open

Carl S. Schneider, Stephen D. Gedney, Netzahualcoyotl Ojeda-Ayala, Mark A. Travers · 2021

We introduce a dynamic exponential model of ferromagnetic hysteresis that unifies the cooperative exponential model with the Néel fluctuating field, Jiles-Atherton approach to the anhysteretic and a Preisach convolution integral over a fie…

IEEE Antennas and Propagation Society Symposium Open

Branislav M. Notaroš, Dejan S. Filipović, Andrew F. Peterson, Stephen D. Gedney, David Jackson , et al. · 2021

the Hyatt Regency and Grand Hyatt, in

Measurement and Gaussian Model of Ferromagnetic Viscosity Open

Carl S. Schneider, Stephen D. Gedney, Mark A. Travers, Joseph J. Gedney, Kyle E. Redmond · 2021

Accurate and Versatile High-Order Modeling of Electromagnetic Scattering on Plasmonic Nanostructures Open

Hamid T. Chorsi, Stephen D. Gedney · 2016

This paper presents high-order (HO) electromagnetic modeling of plasmonic nanostructures based on the Locally Corrected Nystrom (LCN) method. Advanced nanophotonic and nanoplasmonic structures involve electrically large electromagnetic str…

Dynamic Behavior of RF MEMS Disk Resonators Open

Hamid T. Chorsi, Meysam T. Chorsi, Stephen D. Gedney · 2016

Microelectromechanical systems (MEMS) resonators serve as frequency selective components in applications ranging from biology to communications. In this paper, the dynamic behavior of an RF MEMS disk resonator is formulated using an analyt…

Numerical Modeling of MEMS Resonators Open

Hamid T. Chorsi, Meysam T. Chorsi, Stephen D. Gedney · 2016

Microelectromechanical systems (MEMS) resonators serve as frequency selective components in applications ranging from biology to communications. In this paper, the dynamic behavior of an RF MEMS disk resonator is formulated using an analyt…

Multistation observations of the azimuth, polarization, and frequency dependence of ELF/VLF waves generated by electrojet modulation Open

Ashanthi Maxworth, Mark Gołkowski, M. B. Cohen, R. C. Moore, Hamid T. Chorsi , et al. · 2015

Modulated ionospheric heating experiments are performed with the High Frequency Active Auroral Research Program facility in Gakona, Alaska, for the purpose of generating extremely low frequency (ELF) and very low frequency (VLF) waves. Obs…

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