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Multi-band terahertz chiral metasurface with giant optical activities and negative refractive index based on T-shaped resonators.

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Title: Multi-band terahertz chiral metasurface with giant optical activities and negative refractive index based on T-shaped resonators.
Authors: Chen, Hao Ran1, Cheng, Yong Zhi1 chengyz@wust.edu.cn, Zhao, Jing Cheng2, Mao, Xue Song1
Source: Modern Physics Letters B. Oct2018, Vol. 32 Issue 30, pN.PAG-N.PAG. 10p.
Subjects: Terahertz technology, Chirality, Optical rotation, Resonators, Electromagnetic fields, Current density (Electromagnetism)
Abstract: A novel chiral metasurface (CMS) based on T-shaped resonators is proposed and investigated numerically. The CMS is composed of a periodic array of bi-layered conjugated fourfold T-shaped structure. The retrieved effective electromagnetic (EM) parameters indicate that the multi-band negative refractive index associated with strong optical activity and circular dichroism (CD) effect is realized in terahertz (THz) region. The physical mechanism is illustrated by analyzing the current density distributions. Due to its exotic chiral optical properties, the proposed CMS is useful for the development of THz devices. [ABSTRACT FROM AUTHOR]
Copyright of Modern Physics Letters B is the property of World Scientific Publishing Company and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 132752195
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  Data: Multi-band terahertz chiral metasurface with giant optical activities and negative refractive index based on T-shaped resonators.
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  Data: <searchLink fieldCode="AR" term="%22Chen%2C+Hao+Ran%22">Chen, Hao Ran</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Cheng%2C+Yong+Zhi%22">Cheng, Yong Zhi</searchLink><relatesTo>1</relatesTo><i> chengyz@wust.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Zhao%2C+Jing+Cheng%22">Zhao, Jing Cheng</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Mao%2C+Xue+Song%22">Mao, Xue Song</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Modern+Physics+Letters+B%22">Modern Physics Letters B</searchLink>. Oct2018, Vol. 32 Issue 30, pN.PAG-N.PAG. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Terahertz+technology%22">Terahertz technology</searchLink><br /><searchLink fieldCode="DE" term="%22Chirality%22">Chirality</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+rotation%22">Optical rotation</searchLink><br /><searchLink fieldCode="DE" term="%22Resonators%22">Resonators</searchLink><br /><searchLink fieldCode="DE" term="%22Electromagnetic+fields%22">Electromagnetic fields</searchLink><br /><searchLink fieldCode="DE" term="%22Current+density+%28Electromagnetism%29%22">Current density (Electromagnetism)</searchLink>
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  Data: A novel chiral metasurface (CMS) based on T-shaped resonators is proposed and investigated numerically. The CMS is composed of a periodic array of bi-layered conjugated fourfold T-shaped structure. The retrieved effective electromagnetic (EM) parameters indicate that the multi-band negative refractive index associated with strong optical activity and circular dichroism (CD) effect is realized in terahertz (THz) region. The physical mechanism is illustrated by analyzing the current density distributions. Due to its exotic chiral optical properties, the proposed CMS is useful for the development of THz devices. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Modern Physics Letters B is the property of World Scientific Publishing Company and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1142/S0217984918503669
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      – SubjectFull: Chirality
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      – SubjectFull: Optical rotation
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      – SubjectFull: Resonators
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            – D: 30
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              Text: Oct2018
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              Y: 2018
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