High-order topological charges up to ±3 are realized in C4-symmetric photonic crystal slabs via parameter-driven merging of off-Γ BICs using a unified geometric framework based on Fabry-Pérot interference and guided resonances.
and Roxworthy, Brian J
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physics.optics 2years
2026 2verdicts
UNVERDICTED 2representative citing papers
Meta-grating coupler on SOI synthesizes 300 μm waist near-Gaussian collimated beams with M² ≤ 1.10 via spatially varying sub-wavelength unit cells that control local coupling strength and emission angle.
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Unified Topological Dynamics of Merging Bound States in the Continuum for High-Order Topological Charges
High-order topological charges up to ±3 are realized in C4-symmetric photonic crystal slabs via parameter-driven merging of off-Γ BICs using a unified geometric framework based on Fabry-Pérot interference and guided resonances.
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High-Beam-Quality Meta-Grating Couplers for Large Collimated Free-Space Beams on Silicon-on-Insulator
Meta-grating coupler on SOI synthesizes 300 μm waist near-Gaussian collimated beams with M² ≤ 1.10 via spatially varying sub-wavelength unit cells that control local coupling strength and emission angle.