NUR Repository

Magnified imaging based on non-Hermitian nonlocal cylindrical metasurfaces

Show simple item record

dc.contributor.author Savoia, Silvio
dc.contributor.author Valagiannopoulos, Constantinos A.
dc.contributor.author Monticone, Francesco
dc.contributor.author Castaldi, Giuseppe
dc.contributor.author Galdi, Vincenzo
dc.contributor.author Al`u, Andrea
dc.date.accessioned 2017-03-15T04:14:51Z
dc.date.available 2017-03-15T04:14:51Z
dc.date.issued 2017
dc.identifier.citation Silvio Savoia, Constantinos A. Valagiannopoulos, Francesco Monticone, Giuseppe Castaldi, Vincenzo Galdi, and Andrea Al`u; 2017; Magnified imaging based on non-Hermitian nonlocal cylindrical metasurfaces; PHYSICAL REVIEW B. American Physical Society; http://nur.nu.edu.kz/handle/123456789/2359 ru_RU
dc.identifier.uri http://nur.nu.edu.kz/handle/123456789/2359
dc.description.abstract We show that a cylindrical lensing system composed of two metasurfaces with suitably tailored non-Hermitian (i.e., with distributed gain and loss) and nonlocal (i.e., spatially dispersive) properties can perform magnified imaging with reduced aberrations. More specifically, we analytically derive the idealized surface-impedance values that are required for “perfect” magnification and imaging and elucidate the role and implications of non- Hermiticity and nonlocality in terms of spatial resolution and practical implementation. For a basic demonstration, we explore some proof-of-principle quasilocal and multilayered implementations and independently validate the outcomes via full-wave numerical simulations. We also show that the metasurface frequency-dispersion laws can be chosen so as to ensure unconditional stability with respect to arbitrary temporal excitations. These results, which extend previous studies on planar configurations, may open intriguing venues in the design of metastructures for field imaging and processing. ru_RU
dc.language.iso en ru_RU
dc.publisher PHYSICAL REVIEW B. American Physical Society ru_RU
dc.rights Attribution-NonCommercial-ShareAlike 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-sa/3.0/us/ *
dc.title Magnified imaging based on non-Hermitian nonlocal cylindrical metasurfaces ru_RU
dc.type Article ru_RU


Files in this item

The following license files are associated with this item:

This item appears in the following Collection(s)

Show simple item record

Attribution-NonCommercial-ShareAlike 3.0 United States Except where otherwise noted, this item's license is described as Attribution-NonCommercial-ShareAlike 3.0 United States