Tailoring electromagnetically induced transparency for terahertz metamaterials: From diatomic to triatomic structural molecules

Xiaogang Yin; Tianhua Feng; Senpo Yip; Zixian Liang; Alvin Hui; Johnny C. Ho; Jensen Li

doi:10.1063/1.4813553

Tailoring electromagnetically induced transparency for terahertz metamaterials: From diatomic to triatomic structural molecules

Xiaogang Yin, Tianhua Feng, Senpo Yip, Zixian Liang, Alvin Hui, Johnny C. Ho, Jensen Li

State Key Laboratory of Terahertz and Millimeter Waves (City University of Hong Kong)

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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Abstract

The coupling effects in electromagnetically induced transparency (EIT) for triatomic metamaterials are investigated at terahertz (THz) frequencies both experimentally and theoretically. We observed enhancement and cancellation of EIT with single transparency window, and also two additional ways to achieve double EIT transparency windows. One is from the hybridization between two dark atoms in a bright-dark-dark configuration. Another is from an averaged effect between absorption of the additional bright atom and the EIT from the original diatomic molecule in a bright-bright-dark configuration. It allows us to control EIT and the associated slow-light effect for THz metamaterials with high accuracy. © 2013 AIP Publishing LLC.

Original language	English
Article number	21115
Journal	Applied Physics Letters
Volume	103
Issue number	2
DOIs	https://doi.org/10.1063/1.4813553
Publication status	Published - 8 Jul 2013

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COPYRIGHT TERMS OF DEPOSITED FINAL PUBLISHED VERSION FILE: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Xiaogang Yin, Tianhua Feng, SenPo Yip, Zixian Liang, Alvin Hui, Johnny C. Ho, and Jensen Li , "Tailoring electromagnetically induced transparency for terahertz metamaterials: From diatomic to triatomic structural molecules", Appl. Phys. Lett. 103, 021115 (2013) and may be found at https://doi.org/10.1063/1.4813553.

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abstract = "The coupling effects in electromagnetically induced transparency (EIT) for triatomic metamaterials are investigated at terahertz (THz) frequencies both experimentally and theoretically. We observed enhancement and cancellation of EIT with single transparency window, and also two additional ways to achieve double EIT transparency windows. One is from the hybridization between two dark atoms in a bright-dark-dark configuration. Another is from an averaged effect between absorption of the additional bright atom and the EIT from the original diatomic molecule in a bright-bright-dark configuration. It allows us to control EIT and the associated slow-light effect for THz metamaterials with high accuracy. {\textcopyright} 2013 AIP Publishing LLC.",

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AU - Yip, Senpo

AU - Liang, Zixian

AU - Hui, Alvin

AU - Ho, Johnny C.

AU - Li, Jensen

PY - 2013/7/8

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N2 - The coupling effects in electromagnetically induced transparency (EIT) for triatomic metamaterials are investigated at terahertz (THz) frequencies both experimentally and theoretically. We observed enhancement and cancellation of EIT with single transparency window, and also two additional ways to achieve double EIT transparency windows. One is from the hybridization between two dark atoms in a bright-dark-dark configuration. Another is from an averaged effect between absorption of the additional bright atom and the EIT from the original diatomic molecule in a bright-bright-dark configuration. It allows us to control EIT and the associated slow-light effect for THz metamaterials with high accuracy. © 2013 AIP Publishing LLC.

AB - The coupling effects in electromagnetically induced transparency (EIT) for triatomic metamaterials are investigated at terahertz (THz) frequencies both experimentally and theoretically. We observed enhancement and cancellation of EIT with single transparency window, and also two additional ways to achieve double EIT transparency windows. One is from the hybridization between two dark atoms in a bright-dark-dark configuration. Another is from an averaged effect between absorption of the additional bright atom and the EIT from the original diatomic molecule in a bright-bright-dark configuration. It allows us to control EIT and the associated slow-light effect for THz metamaterials with high accuracy. © 2013 AIP Publishing LLC.

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Tailoring electromagnetically induced transparency for terahertz metamaterials: From diatomic to triatomic structural molecules

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