From the total internal reflection of Bloch waves to bound states in the continuum (IMAGE)

Science China Press

From the total internal reflection of Bloch waves to bound states in the continuum

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(a) Total internal reflection of two Bloch waves at the interface of the photonic crystal. (b) Guidance condition: as a Bloch wave reflects twice, it duplicates itself. (c) Conventional and generalized conditions for the waveguide mode. Here, the generalized waveguide mode is precisely the BIC.

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