Observation of the photonic DNLS and the DBS (IMAGE)

Light Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS

Observation of the photonic DNLS and the DBS

Caption

a, The experimental set-up for DNLS. b, Sketch of the in-plane dispersion around the Dirac nodal ring (DNR) degeneracy (golden). The DNR is four-fold degenerate, consisting of two sets of type-II Weyl nodal rings of TE (blue) and TM (red) polarizations. c and d, Measured transmission spectra for the photonic crystal sample with varied incident angles for the TE and TM plane-wave excitations. The transmission spectra fill the region bounded by the bulk bands (black dashed lines). e and f, Measured reflection spectra for the silver film/photonic crystal sample with varied incident angles for the TE and TM excitations. The black solid lines mark the numerically simulated bowl surface states dispersions.

Credit

by Mengying Hu, Ye Zhang, Xi Jiang, Tong Qiao, Qiang Wang, Shining Zhu, Meng Xiao, and Hui Liu

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Credit must be given to the creator.

License

CC BY

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