Optical nonlocality induced Zitterbewegung near the Dirac point in metal-dielectric multilayer metamaterials

被引:4
|
作者
Sun, Lei [1 ]
Gao, Jie [1 ]
Yang, Xiaodong [1 ]
机构
[1] Missouri Univ Sci & Technol, Dept Mech & Aerosp Engn, Rolla, MO 65409 USA
来源
OPTICS EXPRESS | 2016年 / 24卷 / 07期
基金
美国国家科学基金会;
关键词
REFRACTIVE-INDEX; DIFFRACTION; CRYSTALS; CONES;
D O I
10.1364/OE.24.007055
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The optical nonlocality near the Dirac point in infinite periodic metal-dielectric multilayer metamaterials is investigated through the dispersion relation analysis according to the transfer-matrix method. It is revealed that both the symmetric and asymmetric surface plasmon polariton modes present the zero nonlocal effective permittivity, and the degeneracy of these two modes results in the emergence of the Dirac point. Furthermore, the Zitterbewegung effect near the Dirac point induced by the optical nonlocality is demonstrated due to the coherent coupling between the symmetric and asymmetric modes. (C) 2016 Optical Society of America
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页码:7055 / 7062
页数:8
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