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Title: An analog of double electromagnetically induced transparency with extremely high group indexes
Authors: Yang, An
Yan, Changchun
Tian, Jiebing
Wang, Cheng
Li, Guiming
Zhang, Dao Hua
Keywords: DRNTU::Engineering::Electrical and electronic engineering
Issue Date: 2013
Source: Yang, A., Yan, C., Tian, J., Wang, C., Li, G., & Zhang, D. H. (2013). An analog of double electromagnetically induced transparency with extremely high group indexes. Chinese optics letters, 11(5).
Series/Report no.: Chinese optics letters
Abstract: An asymmetric metamaterial exhibiting an analog of double electromagnetically induced transparency (EIT) in the middle-infrared region is reported. The metamaterial consists of two-layered arrays of U-shaped rings embedded in a medium, with the lower layer rotated by 90◦. Our simulations demonstrate that both maximum group indexes are extremely high at the two EIT-like positions. The group index reaches about thrice the currently reported maximum value at the high-frequency EIT-like position. The transmittance at the two transparency positions also possesses extremely high Q factors, which is conducive to controlling the propagation of electromagnetic waves.
ISSN: 1671-7694
DOI: 10.3788/COL201311.051602
Rights: © 2013 Chinese Optics Letters. This paper was published in Chinese Optics Letters and is made available as an electronic reprint (preprint) with permission of Chinese Optics Letters. The paper can be found at the following official DOI: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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