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Triple mode coupling effect and dynamic tuning based on the zipper-type graphene terahertz metamaterial
Journal of Physics D: Applied Physics ( IF 3.4 ) Pub Date : 2020-01-21 , DOI: 10.1088/1361-6463/ab634e Baihui Zhang , Hui Xu , Mingzhuo Zhao , Cuixiu Xiong , Chao Liu , Biao Zeng , Enduo Gao , Kuan Wu , Hongjian Li
Journal of Physics D: Applied Physics ( IF 3.4 ) Pub Date : 2020-01-21 , DOI: 10.1088/1361-6463/ab634e Baihui Zhang , Hui Xu , Mingzhuo Zhao , Cuixiu Xiong , Chao Liu , Biao Zeng , Enduo Gao , Kuan Wu , Hongjian Li
We construct a laminated metamaterial structure of zipper-type monolayer graphene with silica, which is equipped with a distinctively dual plasmon-induced transparency (PIT) phenomenon. The graphene pattern in this structure craftily connects with the electrode so that we can dynamically control the PIT response (via regulating the bias voltage that applied between the electrode and the substrate to control the graphene Fermi energy), in which the range of voltage-regulate is calculated theoretically, proving to be a feasible measure for PIT response-tune. Then, the tuning discipline for this structure is summarized from the calculated result of the coupled mode theory deduced theoretical model and the simulation result. It is found that the structure possesses a great tuning performance within the tuning range we studied; also, as the structure ameliorates the monolayer graphene absorbance from 2.3% to about 50% within a broad dynamic frequency tuning range, the absorption peak...
中文翻译:
基于拉链型石墨烯太赫兹超材料的三模耦合效应和动态调谐
我们用二氧化硅构建了拉链型单层石墨烯的层状超材料结构,该结构具有独特的双重等离激元诱导的透明性(PIT)现象。该结构中的石墨烯图案与电极巧妙连接,因此我们可以动态地控制PIT响应(通过调节施加在电极和基板之间的偏置电压来控制石墨烯费米能量),其中电压调节范围从理论上计算出PIT,被证明是PIT响应调整的可行方法。然后,根据耦合模理论推导的理论模型的计算结果和仿真结果,总结了该结构的调谐原理。发现在我们研究的调谐范围内,该结构具有良好的调谐性能。也,
更新日期:2020-01-22
中文翻译:
基于拉链型石墨烯太赫兹超材料的三模耦合效应和动态调谐
我们用二氧化硅构建了拉链型单层石墨烯的层状超材料结构,该结构具有独特的双重等离激元诱导的透明性(PIT)现象。该结构中的石墨烯图案与电极巧妙连接,因此我们可以动态地控制PIT响应(通过调节施加在电极和基板之间的偏置电压来控制石墨烯费米能量),其中电压调节范围从理论上计算出PIT,被证明是PIT响应调整的可行方法。然后,根据耦合模理论推导的理论模型的计算结果和仿真结果,总结了该结构的调谐原理。发现在我们研究的调谐范围内,该结构具有良好的调谐性能。也,