Abstract
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.
© 2018 Optical Society of America
Full Article | PDF ArticleMore Like This
Ying Cui and Yongyuan Jiang
Opt. Express 30(23) 42614-42623 (2022)
Abbas Ghasempour Ardakani and Khatereh Moradi
Appl. Opt. 58(23) 6217-6221 (2019)
Xiaoqing Luo, Fangrong Hu, and Guangyuan Li
Opt. Lett. 46(6) 1309-1312 (2021)