期刊
JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS
卷 8, 期 4, 页码 S98-S105出版社
IOP PUBLISHING LTD
DOI: 10.1088/1464-4258/8/4/S08
关键词
planar chirality; metal nanostructures; extraordinary transmission; polarization
类别
资金
- Engineering and Physical Sciences Research Council [EP/C511786/1] Funding Source: researchfish
The true three-dimensional finite element numerical solution of Maxwell's equations shows that the propagation of light through a thin flat free-standing metallic screen containing a hole of twisted shape is sensitive to whether the incident wave is left or right circularly polarized. The intensity map and polarization state of light are dramatically changed depending on the mutual direction of the hole's twist and the incident light's wave polarization handedness. We also observed a strong concentration of the transmitted field at the centre of the chiral hole when light in the object plane rotates against the twist of the investigated gammadion type structure.
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