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(a) Holographic CSPC composed of double helixes of phase shift arranged in checkerboard manner. (b) is 3D BZ and (c) is photonic band structure. Thin (thick) solid curve is LH (RH) polarized band. Light gray box highlights the RH polarization gap.
(a) RH and (b) LH-polarized transmission spectra. Insets are the zoom-in graphs near the Fano resonances in the RH PG. Light gray box highlights the RH PG.
(a) Photonic band structure same as Fig. 1(c). Insets are Fourier transformations of modes at the frequency of 0.98 (c/a). Arrow (radius) denotes k-component’s vector (amplitude). The dominant k-component is highlighted by chromatic color. (b) CQ of the LH-polarized band.
Sketch map of mode couplings. Thin and thick horizontal arrows show two transmission channels. Black (gray) solid arrows show the coupling with high (low) quality. Dashed arrows indicate the weak and negligible couplings.
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