ArticleNanophotonics (Berlin, Germany)2022
Exceptional points at bound states in the continuum in photonic integrated circuits.
Article in Nanophotonics (Berlin, Germany), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed.
- Symmetry-protected bound states in the continuum on an integrated photonic platform.Nanophotonics (Berlin, Germany) · 2024Article
- An Introduction to Nonlinear Integrated Photonics: Structures and Devices.Micromachines · 2023Review
- Novel Photonic Applications of Silicon Carbide.Materials (Basel, Switzerland) · 2023Review
- Label-Free Bound-States-in-the-Continuum Biosensors.Biosensors · 2022Review
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3 authors.
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Abstract
We propose the realization of exceptional points (EP) at bound states in the continuum (BIC), with two coupled strips, made of an electron-beam resist and patterned on the thin film photonic integrated platform, which makes possible etchless photonics integrated circuits (PIC). The loss rate of the EP can be significantly decreased through merging the BIC peaks in the dual-BIC scheme. The orthogonality of the eigenvectors is retrieved for evaluating the Hermitian orthogonal eigenvectors and the non-Hermitian EP features. We also find that engineering the dimension of the dual-BIC scheme enables a transition between the coalesced eigenvectors in the EP and the orthogonal eigenvectors in the Hermitian system. This work is of great significance for the exploration on BIC-based directional coupling with ultralow-loss phase matching conditions, special coupling conditions of EPs and BICs with coupled quasi-BIC systems, dynamical EP encircling, and EP topology, in PICs.
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