Tapered Gold Helices as High-Extinction-Ratio, Broadband Circular Polarizer

被引：0
|
作者：
Gansel, Justyna K. [1 ]
Latzel, Michael [1 ]
Froelich, Andreas [1 ]
Kaschke, Johannes [1 ]
Thiel, Michael [2 ,3 ]
Wegener, Martin [4 ]
机构：
[1] DFG Ctr Funct Nanostruct CFN, Karlsruhe Inst Technol KIT, Inst Phys Appl, D-76131 Karlsruhe, Germany
[2] Nanoscribe GmbH, Inst Nanotechnol, D-76344 Berlin, Germany
[3] Karlsruhe Inst Technol KIT, D-76131 Karlsruhe, Germany
[4] DFG Ctr Funct Nanostruct CFN, Karlsruhe Inst Technol KIT, Inst Nanotechnol, Inst Appl Phys, D-76131 Karlsruhe, Germany
来源：
2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) | 2012年
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中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Tapering is shown to further extend the bandwidth of three-dimensional gold-helix metamaterials as broadband circular polarizers to about 1.5 octaves. Furthermore, the extinction ratio is improved. Theory and experiment show good agreement.
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页数：2
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