DESIGN AND SIMULATION OF L-SHAPED CHIRAL NEGATIVE REFRACTIVE INDEX STRUCTURE

DESIGN AND SIMULATION OF L-SHAPED CHIRAL NEGATIVE REFRACTIVE INDEX STRUCTURE
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L型手性负折射率结构的设计与模拟

DOI:
10.2528/pier11032601
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发表时间:
2011
影响因子:
6.7
通讯作者:
Dong, J-F
Dong, J-F
中科院分区:
计算机科学2区
文献类型:
--
作者:
Li, J.;Yang, F-Q;Dong, J-F

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设计并模拟了一种工作在微波和光频段的新型L型手征结构。从模拟的透射谱和反射谱中得到了该结构的圆二色性、椭圆率角、偏振方位旋转角以及相对介电常数、相对磁导率、手征参数和折射率等有效参数。结果表明,L型手性结构的化合物具有非常强的旋光性。由于该结构具有较大的手征参数,可以在不同时具有负介电常数和负磁导率的情况下,获得一个圆偏振波的负折射率。
A new L-shaped chiral structure working in microwave and optical frequency bands has been designed and simulated. The circular dichroism, ellipticity angle, polarization azimuth rotation angle, and efiective parameters of this structure, including relative permittivity, relative permeability, chiral parameter and refractive index, are retrieved from simulated transmission and re∞ection spectra. The results show that the exceptionally strong optical activity is found for the L-shaped chiral structure. Because of the large chiral parameter of this structure, negative refractive index of one circularly polarized wave can be obtained without simultaneously negative permittivity and negative permeability.
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