Fig. 2: Polariton strong coupling. | Nature Communications

Fig. 2: Polariton strong coupling.

From: Polaritonic states trapped by topological defects

Fig. 2

Bulk band diagrams obtained from experimental measurements and numerical simulations for (a) photonic and (b) hybrid polaritonic metasurfaces with shrunken hexamers patterning. The lower-frequency bands in (a) possess dipolar character, while the higher-frequency bands are quadrupolar. In (b), the dashed gray line marks the spectral position of the hBN phonon mode.

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