Enhancement of absorption bistability by planar metamaterial

Author

Tuz, Vladimir R. ; Butylkin, Valery S. ; Prosvirnin, Sergey L.

Author_Institution

Inst. of Radioastron., Kharkiv, Ukraine

fYear

2011

fDate

26-29 Sept. 2011

Firstpage

129

Lastpage

132

Abstract

We report on the peculiarities of the absorption bistability which appears in a planar metamaterial composed of a 4-fold periodic array of two concentric metal rings placed on a substrate of saturate absorbing material. Such structure bears the Fano-shape resonance of a trapped-mode excitation which is a result of the antiphase current oscillations in the elements of a periodic cell. It is demonstrated that the switching can be achieved between essentially different levels of transmission nearly the frequency of this resonance excitation.

Keywords

light absorption; light transmission; metamaterials; optical arrays; optical bistability; optical switches; oscillations; Fano-shape resonance; absorption bistability; antiphase current oscillations; concentric metal rings; periodic array; periodic cell; planar metamaterial; saturate absorbing material; trapped-mode excitation; Absorption; Metamaterials; Optical bistability; Optical devices; Optical polarization; Resonant frequency; Substrates;

fLanguage

English

Publisher

ieee

Conference_Titel

Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED), 2011 XVth International Seminar/Workshop on

Conference_Location

Lviv

ISSN

pending

Print_ISBN

978-1-4577-0897-8

Type

conf

Filename

6081759