Electromagnetic diode based on photonic crystal cavity with embedded highly dispersive meta-interface

被引：5
作者：
Chen, Yongqiang [1 ]
Dong, Lijuan [2 ]
Xu, Xiaohu [3 ]
Jiang, Jun [4 ]
Shi, Yunlong [2 ]
机构：
[1] Suzhou Univ Sci & Technol, Sch Math & Phys, Jiangsu Key Lab Micro & Nano Heat Fluid Flow Tech, Suzhou 215009, Jiangsu, Peoples R China
[2] Shanxi Datong Univ, Inst Solid State Phys, Datong 037009, Peoples R China
[3] Shanxi Normal Univ, Coll Phys & Informat Engn, Linfen 041004, Peoples R China
[4] Tongji Univ, Sch Phys Sci & Engn, Minist Educ, Key Lab Adv Microstruct Mat, Shanghai 200092, Peoples R China
来源：
JOURNAL OF APPLIED PHYSICS | 2017年 / 122卷 / 24期
基金：
美国国家科学基金会;
关键词：
ALL-OPTICAL DIODES; INDUCED TRANSPARENCY; METAMATERIALS; MICROCAVITIES; TRANSMISSION; CONTRAST; LIGHT;
D O I：
10.1063/1.5010023
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In this paper, we propose a scheme for subwavelength electromagnetic diodes by employing a photonic crystal (PC) cavity with embedded electromagnetically induced-transparency (EIT)-like highly dispersive meta-interface. A nonreciprocal response, with 21.5 dB transmission light contrast and 12.3 dBm working power, is conceptually demonstrated in a microstrip transmission line system with asymmetric absorption and nonlinear medium inclusion. Such high-contrast transmission and relatively low-threshold diode action stem from the composite PC-EIT mechanism. This mechanism not only possesses a large quality factor and strong localization of fields but also does not enlarge the device volume and drastically reduce transmittance. Our findings should be beneficial for the design of new and practical metamaterial-enabled nonlinear devices. Published by AIP Publishing.
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页数：5
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