Fig. 4: Experimental observation of topological interface state with the transverse-electric-transverse-magnetic (TE-TM) splitting effect. | Communications Physics

Fig. 4: Experimental observation of topological interface state with the transverse-electric-transverse-magnetic (TE-TM) splitting effect.

From: Controlling the TE-TM splitting of topological photonic interface states by precise incident angle adjustment

Fig. 4

a is the experimentally measured transmission spectra of the composite photonic crystals (PCs) as functions of the refracted angle θa for TE and TM polarization modes, respectively. b–e are the transmission spectra of TE (blue lines) and TM (red lines) waves at θa = 0°, 10°, 28°, and 36°, respectively.

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