Details

Autor(en) / Beteiligte

• Lee, Yoon Gyu
• Kee, Chul-Sik

Titel

Constant cutoff frequency of a two-dimensional photonic crystal composed of metallic rods and epsilon-near-zero materials

Ist Teil von

• Physica. B, Condensed matter, 2021-01, Vol.600, p.412598, Article 412598

Ort / Verlag

Amsterdam: Elsevier B.V

Erscheinungsjahr

2021

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• It is well known that a photonic crystal composed of metal rods in a dielectric background exhibits a cutoff frequency below which the propagation of light is forbidden. The cutoff frequency usually increases as the volume fraction of the metal rod increases. However, we report that the cutoff frequency of a photonic crystal composed of metal rods and an epsilon-near-zero material background is independent of the volume fraction and identical to the plasma frequency of the metal rod. The extremely long wavelength of light in an epsilon-near-zero material causes this interesting phenomenon. [Display omitted] •The cutoff frequency, the effective plasma frequency, of a photonic crystal composed of metal rods and an epsilon-near-zero material background is independent of the volume fraction and identical to the plasma frequency of the metal rod.•This interesting phenomenon is caused by the fact that the wavelength of light in an epsilon-near-zero material is extremely long.