Multilayer metamaterial absorbers inspired by perfectly matched layers
Artikel i vetenskaplig tidskrift, 2015

We derive periodic multilayer absorbers with effective uniaxial properties similar to perfectly matched layers (PML). This approximate representation of PML is based on the effective medium theory and we call it an effective medium PML. We compare the spatial reflection spectrum of the layered absorbers to that of a PML material and demonstrate that after neglecting gain and magnetic properties, the absorber remains functional. This opens a route to create electromagnetic absorbers for real and not only numerical applications and as an example we introduce a layered absorber for the wavelength of 8 made of and NaCl. We also show that similar cylindrical core-shell nanostructures derived from flat multilayers also exhibit very good absorptive and reflective properties despite the different geometry.

Electromagnetic modeling

Metamaterial

Electromagnetic absorber

UPML

Perfectly matched layer

Författare

A. Pastuszczak

Uniwersytet Warszawski

M. Stolarek

Uniwersytet Warszawski

Tomasz Antosiewicz

Chalmers, Teknisk fysik, Bionanofotonik

R. Kotyński

Uniwersytet Warszawski

Optical and Quantum Electronics

0306-8919 (ISSN) 1572-817X (eISSN)

Vol. 47 89-97

Ämneskategorier

Elektroteknik och elektronik

DOI

10.1007/s11082-014-9986-z