5 papers
Rayleigh Bound States in the Continuum
Ilya Karavaev, Mingzhao Song, Andrey Bogdanov
We predict a class of bound states in the continuum (BICs) in non-subwavelength periodic metasurfaces -- Rayleigh BICs -- that emerge precisely at Rayleigh anomalies, where diffrac…
Robustness of Bound States in the Continuum in Bilayer Structures against Symmetry Breaking
Kliment V. Semushev, Zilong Zhao, Alexey Proskurin +5
We investigate the robustness of bound states in the continuum (BICs) in a bilayer dielectric rod array against geometric and material perturbations. Our analysis focuses on both s…
Polaritonic spectra of optical Mie voids
Evgeny Ryabkov, Mingzhao Song, Andrey A. Bogdanov +1
The progress in understanding the optical and microscopic properties of polaritons relies on various optical cavities to confine electromagnetic radiation, which causes a demand fo…
Temporal coupled mode theory for high- resonances in dielectric metasurfaces
Dmitrii N. Maksimov, Pavel S. Pankin, Dong-Wook Kim +3
In this work, we propose a coupled mode theory for resonant response from quasi-guided modes in periodic dielectric metasurfaces. First, we derived a generic set of constraints imp…
Non-Hermitian Singularities in Scattering Spectra of Mie Resonators
Fan Zhang, Nikolay S. Solodovchenko, Hangkai Fan +4
Non-Hermitian systems are known to possess unique singularities in the scattering spectra such as exceptional points, bound states in the continuum, Diabolic points, and anapole st…