Non-Hermitian singularities in scattering spectra of Mie resonators.

 0 Người đánh giá. Xếp hạng trung bình 0

Tác giả: Andrey A Bogdanov, Hangkai Fan, Yuri S Kivshar, Mikhail F Limonov, Nikolay S Solodovchenko, Mingzhao Song, Fan Zhang

Ngôn ngữ: eng

Ký hiệu phân loại:

Thông tin xuất bản: United States : Science advances , 2025

Mô tả vật lý:

Bộ sưu tập: NCBI

ID: 473416

Non-Hermitian systems are known to have unique singularities, notably exceptional points. Mie resonators demonstrate fruitful electromagnetic multipole interference effects in scattering behavior. The research of these non-Hermitian singularities is typically conducted independently with the analysis of scattering interference. Here, we demonstrate fundamental relationships between non-Hermitian singularities and observe their manifestation in the scattering spectra. We reveal that exceptional points always exist in the anapole regime, and diabolic points are associated with superscattering. We confirm our theoretical findings in the microwave experiment by measuring the extinction spectra of subwavelength Mie-resonant ceramic rings. Our study underpins the generic behavior of non-Hermitian singularities in the scattering spectra of subwavelength Mie resonators, uncovering their special applications in non-Hermitian nonlinear optics and topological photonics.
Tạo bộ sưu tập với mã QR

THƯ VIỆN - TRƯỜNG ĐẠI HỌC CÔNG NGHỆ TP.HCM

ĐT: (028) 36225755 | Email: tt.thuvien@hutech.edu.vn

Copyright @2024 THƯ VIỆN HUTECH