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Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2019

Brewster effect when approaching exceptional points of degeneracy: Epsilon-near-zero behavior

Résumé

We reveal that the phenomenon of full plane-wave transmission without phase accumulation commonly associated with epsilon-near-zero (ENZ) materials does not require vanishing of permittivity. We theoretically connect the phenomenon with condition of the Brewster effect satisfied at the edges of stop bands (at so called exceptional points of degeneracy) and show that full transmission without phase accumulation can be observed in various one-dimensional periodic structures. Particularly, exploiting the manifold of exceptional points of degeneracy in one-dimensional all-dielectric periodic lattices, we demonstrate that these structures not only offer a lossless and extremely simple, CMOS compatible alternative for some applications of ENZ media, but exhibit new properties of all-angle full transmission with zero phase delay. Main results of the study can be readily transferred to acoustic and matter waves.
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Dates et versions

hal-02459638 , version 1 (29-01-2020)

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Vladislav Popov, Sergei Tretyakov, Andrey Novitsky. Brewster effect when approaching exceptional points of degeneracy: Epsilon-near-zero behavior. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2019, 99 (4), ⟨10.1103/PhysRevB.99.045146⟩. ⟨hal-02459638⟩
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