• Szczepański, Paweł
• Kieliszczyk, Marcin
• Janaszek, Bartosz
• Tyszka-Zawadzka, Anna

Abstract

First studies on spatial dispersion (nonlocality), i.e., material parameter dependence on wavevector,innanostructures have considered nonlocality as a parasitic effect deteriorating desired performance of adevice [1]. Due to its significant role in nanolayered metamaterials, effect of nonlocality has been widelydiscussed [1-4]. In particular, relevance of spatial dispersion has been also observed for strong near-field interactions arising from resonances in nanocomposites, such as negative-index metamaterials [3].Until now, different formalisms have been developed and successfully applied, e.g., by introducingcorrection terms [2] or deriving fully nonlocal effective permittivity tensor [4].Hereby, we study nonlocality in multilayered hyperbolic metamaterials, a special class of anisotropicmetamaterial. Our efforts are focused on employment of spatial dispersion as a additional degree offreedomintailoringproperties,ratherthanparasiticeffect.Inparticular,wepresentpossibilityofshaping effective dispersion of the structure by inducing nonlocality.

Topics

• nanocomposite
• dispersion
• metamaterial