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Title: Tunable electromagnetically induced transparency in coupled three-dimensional split-ring-resonator metamaterials
Authors: Han, Song
Cong, Longqing
Lin, Hai
Xiao, Boxun
Yang, Helin
Singh, Ranjan
Keywords: Polarization
Issue Date: 2016
Source: Han, S., Cong, L., Lin, H., Xiao, B., Yang, H., & Singh, R. (2016). Tunable electromagnetically induced transparency in coupled three-dimensional split-ring-resonator metamaterials. Scientific Reports, 6, 20801-. doi: 10.1038/srep20801
Series/Report no.: Scientific Reports
Abstract: Metamaterials have recently enabled coupling induced transparency due to interference effects in coupled subwavelength resonators. In this work, we present a three dimensional (3-D) metamaterial design with six-fold rotational symmetry that shows electromagnetically induced transparency with a strong polarization dependence to the incident electromagnetic wave due to the ultra-sharp resonance line width as a result of interaction between the constituent meta-atoms. However, when the six-fold rotationally symmetric unit cell design was re-arranged into a fourfold rotational symmetry, we observed the excitation of a polarization insensitive dual-band transparency. Thus, the 3-D split-ring resonators allow new schemes to observe single and multi-band classical analogues of electromagnetically induced transparencies that has huge potential applications in slowing down light, sensing modalities, and filtering functionalities either in the passive mode or the active mode where such effects could be tuned by integrating materials with dynamic properties.
DOI: 10.1038/srep20801
Schools: School of Physical and Mathematical Sciences 
Research Centres: Centre for Disruptive Photonic Technologies (CDPT) 
Rights: © 2016 The Authors (Nature Publishing Group). This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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