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Terahertz electromagnetically-induced transparency of self-complementary meta-molecules on Croatian checkerboard
Zhao, ZY; Zheng, XB; Peng, W; Zhang, JB; Zhao, HW; Shi, WZ
2019
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
Volume9Issue:-Pages:
Subtype期刊论文
AbstractA terahertz (THz) electromagnetically-induced transparency (EIT) phenomenon is observed from two types of self-complementary meta-molecules (MMs) based on rectangular shaped electric split-ring resonators (eSRR) on Croatian checkerboard. Each MM contains a couple of identical size eSRRs and a couple of structural inversed eSRRs twisted pi/2 in checkerboard pattern. In the first type of MM (type-I), the gap is in the middle line of eSRR. In the second type of MM (type-II), the gap is on the two arms of eSRR. Both types of MMs exhibit EIT effect. A maximum 20 ps group delay is observed at the transparency window of 0.63 THz in type-I MM; while a maximum 6.0 ps group delay is observed at the transparent window of 0.60 THz in type-II MM. The distribution of surface currents and electrical energy reveals that only CeSRR contribute to the transparency window as well as the side-modes in type-I MM, where the current leakage via contact point contributes to the low-frequency side-mode, and the coupled local inductive-capacitive (LC) oscillation in CeSRRs contributes to the high-frequency side-mode. In type-II MM, however, the localized dipolar oscillator of CeSRR contributes to the low-frequency side-mode; while the hybridization of dipole oscillation on eSRR and LC resonance on CeSRR contributes to the high-frequency side-modes. Our experimental findings manifest a new approach to develop THz slow-light devices.
KeywordPLASMON-INDUCED TRANSPARENCY INTERFERENCE
DOI10.1038/s41598-019-42038-8
Indexed BySCI
Language英语
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/31851
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Shanghai Normal Univ, Dept Phys, Shanghai 200234, Peoples R China;
2.Chinese Acad Sci, State Key Lab Funct Mat Informat, Shanghai Inst Microsyst & Informat Technol, Shanghai 200050, Peoples R China;
3.Chinese Acad Sci, Key Lab Interface Phys, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
Recommended Citation
GB/T 7714
Zhao, ZY,Zheng, XB,Peng, W,et al. Terahertz electromagnetically-induced transparency of self-complementary meta-molecules on Croatian checkerboard[J]. SCIENTIFIC REPORTS,2019,9(-):—.
APA Zhao, ZY,Zheng, XB,Peng, W,Zhang, JB,Zhao, HW,&Shi, WZ.(2019).Terahertz electromagnetically-induced transparency of self-complementary meta-molecules on Croatian checkerboard.SCIENTIFIC REPORTS,9(-),—.
MLA Zhao, ZY,et al."Terahertz electromagnetically-induced transparency of self-complementary meta-molecules on Croatian checkerboard".SCIENTIFIC REPORTS 9.-(2019):—.
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