2021/02/14 by Carlo Forestiere, Giovanni Miano, Bruno Miranda
Engineering · Physics and Astronomy · #Advanced Antenna and Metasurface Technologies #Computational physics #Condensed matter physics #Dielectric #Electrical engineering #Electromagnetic radiation #Equivalent circuit #Inductance #Materials science #Microwave Engineering and Waveguides #Nanophotonics #Optics #Optoelectronics #Permittivity #Photonic Crystals and Applications #Physics #Polarization (electrochemistry) #Quantum mechanics #Radiative transfer #Scattering #Topology (electrical circuits) #Voltage #physics.class-ph #physics.optics
paper · pdf · doi:10.1103/physrevapplied.16.014015
published as Phys. Rev. Applied 16, 014015 (2021)
arxiv created 2021/02/14 · openalex publication_date 2021/07/07 · arxiv updated 2021/07/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The electromagnetic scattering from a network of high-permittivity dielectric thin wires with the network's size smaller than or almost equal to the operating wavelength is investigated. A simple lumped-element theory for the polarization current intensities induced in the wires is developed. The network elements are capacitances and inductances between the wires. An analytical expression for the induced polarization currents is obtained. The connection between the spectral properties of the loop inductance matrix and the network's resonances is established. The number of the allowed current modes and resonances is deduced from the topology of the circuit's digraph. The radiative coupling is also included, and the radiative frequency shifts and the quality factors are derived. The introduced concept and methods may find applications both at radio frequencies and in nanophotonics.