2025/02/06 by Timur Seidov, Seidov, Timur, Maxim A. Gorlach +1
Computer Science · Engineering · Physics and Astronomy · #FOS: Physical sciences #Neural Networks and Reservoir Computing #Optics (physics.optics) #Photonic and Optical Devices #Quantum optics and atomic interactions
paper · pdf · doi:10.48550/arxiv.2502.04020
openalex publication_date 2025/02/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We present a generalization of the Witten effect on the case of oscillating multipole sources exciting nonreciprocal sphere with effective axion response. We find that the fields outside of the sphere are presented as a superposition of electric and magnetic multipoles. In addition to appearance of cross-polarized component in the radiation, Mie resonances of the system hybridize with each other, exhibiting characteristic double peaks in Mie spectra observed especially clearly for higher-order multipole resonances. This characteristic feature may provide a sensitive probe of axion-type nonreciprocal responses in Mie-resonant photonics.