Graphene-based one-dimensional photonic crystal
Graphene-based one-dimensional photonic crystal
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DOI：
10.1088/0953-8984/24/1/015305
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发表时间：
2012-01-11
影响因子：
2.7
通讯作者：
Kezerashvili, Roman Ya
中科院分区：
文献类型：
--
作者：
Berman, Oleg L.;Kezerashvili, Roman Ya
提出了一种新型的一维（1D）光子晶体，该晶体是由嵌入背景介质中的周期性位置的交替石墨烯和介电条纹堆叠阵列形成的。在Kronig-Penney模型的框架下，求解了电磁波在这种结构中传播的波动方程。一维石墨烯光子晶体的频带结构是填充系数和石墨烯条纹间介电层厚度的函数。在石墨烯和介电条纹交替堆叠的位置放置一个额外的介电体形成的光子晶体的缺陷，得到了相应的电磁波局域化的光子频率。
A novel type of one-dimensional (1D) photonic crystal formed by an array of periodically located stacks of alternating graphene and dielectric stripes embedded into a background dielectric medium is proposed. The wave equation for the electromagnetic wave propagating in such a structure is solved in the framework of the Kronig-Penney model. The frequency band structure of the 1D graphene-based photonic crystal is obtained analytically as a function of the filling factor and the thickness of the dielectric between the graphene stripes. The photonic frequency corresponding to the electromagnetic wave localized by a defect of the photonic crystal formed by an extra dielectric placed in the position of one stack of alternating graphene and dielectric stripes is obtained.