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Robust chirality through merging BICs
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DOI：10.1038/s41377-026-02294-6.png)
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Abstract
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Robust chirality is demonstrated by exploiting the merging of multiple accidental bound states in the continuum (BICs). This mechanism simultaneously sustains ultrahigh-quality factor Q resonances and strong chiroptical responses across a wide region of momentum space, achieving near-perfect circular dichroism (~0.99) and an ultrahigh-Q value (~10⁴) in a planar dielectric platform.
Keywords:
chirality
bound states in the continuum
high-quality factor
circular dichroism
planar dielectric platform
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