Non-Hermitian Electromagnetic Metasurfaces at Exceptional Points.

Z Li, G Cao, C Li, S Dong, Y Deng, X Liu, JS Ho… - Progress In …, 2021 - jpier.org
Exceptional points are spectral singularities in non-Hermitian systems at which two or more
eigenvalues and their corresponding eigenvectors simultaneously coalesce. Originating …

Dual-band topological rainbows in Penrose-triangle photonic crystals

Q Xu, Y Peng, A Shi, P Peng, J Liu - JOSA A, 2024 - opg.optica.org
Topological rainbows (TRs) possess the potential to separate and localize topological
photonic states across different frequencies. However, previous works on TRs have been …

Exceptional points in a dielectric spheroid

E Bulgakov, K Pichugin, A Sadreev - Physical Review A, 2021 - APS
Evolution of resonant frequencies and resonant modes as dependent on the aspect ratio is
considered in a dielectric high index spheroid. Because of rotational symmetry of the …

Retardation-induced exceptional point

AA Dmitriev, MV Rybin - Physical Review A, 2023 - APS
Exceptional points in an optical dimer of spheres, which have the same size and operate in
the spectral region of the dipolar resonance, are considered. By choosing different materials …

Exceptional points through variation of distances between four coaxial dielectric disks

K Pichugin, A Sadreev, E Bulgakov - Photonics, 2021 - mdpi.com
By variation of a refractive index and aspect ratio of the isolated disk, we achieved
exceptional points (EPs) at which the resonant frequencies and resonant modes coalesce …

Exceptional Points in Trimers of Dielectric Cylinders

AA Dmitriev, KV Baryshnikova, MV Rybin - JETP Letters, 2024 - Springer
Eigenmodes in equilateral and isosceles triangular trimers of infinite cylinders have been
studied using the theory of multiwave scattering. Equations have been derived for the …

Исключительные точки в тримерах диэлектрических цилиндров

АА Дмитриев, КВ Барышникова… - Письма в Журнал …, 2024 - mathnet.ru
При помощи теории многоволнового рассеяния исследованы собственные моды в
тримере из бесконечных цилиндров в форме равностороннего и равнобедренных …

Isklyuchitel'nye tochki v trimerakh dielektricheskikh tsilindrov

AA Dmitriev, KV Baryshnikova… - Pisʹma v žurnal …, 2024 - journals.rcsi.science
При помощи теории многоволнового рассеяния исследованы собственные моды в
тримере из бесконечных цилиндров в форме равностороннего и равнобедренных …

[PDF][PDF] Exceptional Points through Variation of Distances between Four Coaxial Dielectric Disks. Photonics 2021, 8, 460

K Pichugin, A Sadreev, E Bulgakov - 2021 - academia.edu
By variation of a refractive index and aspect ratio of the isolated disk, we achieved
exceptional points (EPs) at which the resonant frequencies and resonant modes coalesce …