Graphene-metal hybrid metamaterials for strong and tunable circular dichroism generation

A strong and dynamically controlled circular dichroism (CD) effect has aroused great attention due to its desirable applications in modern chemistry and life sciences. In this Letter, we propose a graphene-metal hybrid chiral metamaterial to generate mid-infrared CD with an intensity of more than 10...

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Bibliographic Details
Published in:Optics letters 2018-06, Vol.43 (11), p.2636
Main Authors: Huang, Zhong, Yao, Kan, Su, Guangxu, Ma, Wei, Li, Lin, Liu, Yongmin, Zhan, Peng, Wang, Zhenlin
Format: Article
Language:English
Subjects:
Circular Dichroism - methods
Data processing
Dichroism
Graphene
Graphite - chemistry
Manufactured Materials
Metals
Metamaterials
Nanostructure
Nanostructures - chemistry
Organic chemistry
Stereoisomerism
Surface Plasmon Resonance
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Summary:A strong and dynamically controlled circular dichroism (CD) effect has aroused great attention due to its desirable applications in modern chemistry and life sciences. In this Letter, we propose a graphene-metal hybrid chiral metamaterial to generate mid-infrared CD with an intensity of more than 10%, which can be actively controlled over a wide wavelength range. In addition to the strong tunability, the CD signal intensity of our nanostructure is drastically larger than that of the purely graphene-based chiroptical nanostructures. Our design offers a new strategy for developing tunable chiral metadevices, which could be used in various applications, such as biochemical detection and information processing.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.43.002636