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May 29, 2026NanophotonicsOpen Access

Magnetically Decoupled Janus Bound States in the Continuum for Chirality–Topology Control

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Authors

YYYadong YueDLDu LiKLKun Liang

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Overview

Randomized trial reveals decoupled chirality control in photonic devices, suggesting new pathways for asymmetric interactions.

Key Points

  • The aim is to enhance control over chirality and topological properties in Janus bound states in the continuum.
  • Developed a modified nonreciprocal temporal coupled mode theory with perturbation for description.
  • Utilized bi-layer photonic crystals and magneto-optical slabs.
  • Performed simulations to observe effects of external magnetic field on chirality and topological charges.
  • Decoupled chiral modes were achieved when time-reversal symmetry was broken.
  • Chirality could be independently manipulated through the direction and strength of the magnetic field.
  • Observations showed modulated topological charges and chiralities in the far-field polarization.

Cite This Study

Yue et al. (2026) studied this question.

synapsesocial.com/papers/6a192eb9fab5b468c4417fbehttps://doi.org/10.1002/nap2.70134
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