Gold Helix Photonic Metamaterial as Broadband Circular Polarizer

被引：2255

作者：

Gansel, Justyna K. ^{[1
,2
]}

Thiel, Michael ^{[1
,2
]}

Rill, Michael S. ^{[1
,2
]}

Decker, Manuel ^{[1
,2
]}

Bade, Klaus ^{[3
]}

Saile, Volker ^{[3
]}

von Freymann, Georg ^{[1
,2
,4
]}

Linden, Stefan ^{[1
,2
,4
]}

Wegener, Martin ^{[1
,2
,4
]}

机构：

[1] Univ Karlsruhe TH, Inst Angew Phys, D-76131 Karlsruhe, Germany

[2] Univ Karlsruhe TH, DFG CFN, D-76131 Karlsruhe, Germany

[3] Forschungszentrum Karlsruhe Helmholtz Gemeinschaf, Inst Mikrostrukturtech, D-76021 Karlsruhe, Germany

[4] Forschungszentrum Karlsruhe Helmholtz Gemeinschaf, Inst Nanotechnol, D-76021 Karlsruhe, Germany

来源：

SCIENCE | 2009年 / 325卷 / 5947期

关键词：

NEGATIVE REFRACTIVE-INDEX;

D O I：

10.1126/science.1177031

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We investigated propagation of light through a uniaxial photonic metamaterial composed of three-dimensional gold helices arranged on a two-dimensional square lattice. These nanostructures are fabricated via an approach based on direct laser writing into a positive-tone photoresist followed by electrochemical deposition of gold. For propagation of light along the helix axis, the structure blocks the circular polarization with the same handedness as the helices, whereas it transmits the other, for a frequency range exceeding one octave. The structure is scalable to other frequency ranges and can be used as a compact broadband circular polarizer.

引用

页码：1513 / 1515

页数：3

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