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Multilayer metamaterial absorbers inspired by perfectly matched layers

A. Pastuszczak ; M. Stolarek ; Tomasz Antosiewicz (Institutionen för teknisk fysik, Bionanofotonik) ; R. Kotynski
Optical and quantum electronics (0306-8919). Vol. 47 (2015), 1, p. 89-97.
[Artikel, refereegranskad vetenskaplig]

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.

Nyckelord: Electromagnetic absorber, Metamaterial, Electromagnetic modeling, Perfectly matched layer, UPML

Denna post skapades 2015-01-22. Senast ändrad 2015-01-22.
CPL Pubid: 211390


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Institutioner (Chalmers)

Institutionen för teknisk fysik, Bionanofotonik (2007-2015)


Elektroteknik och elektronik

Chalmers infrastruktur