Structure-selected graphene/metallic surface plasmon coupling regime and infrared modulation application
Structure-selected graphene/metallic surface plasmon coupling regime and infrared modulation application
复制标题
结构选择的石墨烯/金属表面等离子体耦合机制和红外调制应用
DOI：
10.1088/1361-6463/ac360f
复制
发表时间：
2021-11
期刊：
影响因子：
--
通讯作者：
Changhong Chen
中科院分区：
文献类型：
--
作者：
Ye Zhang;Jianjun Lai;Changhong Chen
抽象的。本文提出了一种基于石墨烯的超高对比度长波红外调制器，其中磁电表面等离子体(SPS)的频率失谐度可通过选通的石墨烯费米能量来控制。如果通过选择适当的低损耗栅电介质厚度，该器件设计为在强SP耦合模式下工作，则可以实现高达∼100%的调制深度(MD)，但插入损耗(IL)低至∼−0.37分贝。此外，90%的MD>；患有IL
Abstract. Here we present a graphene-based long-wavelength infrared modulator characteristic of extra-high contrast, where the frequency detuning degree of magnetic and electric surface plasmons (SPs) is controllable by the gated graphene Fermi energy. If the device is designed to work in a strong SP-coupling regime by selecting an appropriate low-lossy gate dielectric thickness, a modulation depth (MD) up to ∼100% but insertion loss (IL) as low as ∼−0.37 dB is achievable. Moreover, a compromised MD > 90% with IL
DOI：
10.1016/c2009-0-20920-2
发表时间：
1985
期刊：
--
影响因子：
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作者：
D. Lynch;W. Hunter
通讯作者：
D. Lynch;W. Hunter