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parity-time symmetric bilayer meta-grating

technology1 mentionslast seen Oct 15, 2026

A non-Hermitian optical structure with coexisting gain and loss that enables transformation of bound states in the continuum into lasing threshold modes.

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parity-time symmetric bilayer meta-grating

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Goos-Hänchen shiftdepends onparity-time symmetric bilayer meta-grating

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