Numerical study on rotational force in a bi-layered gammadion chiral metamaterial

6th International Conference on Optical, Optoelectronic and Photonic Materials and Applications 2014

Lee, Yohan^1 ; Song, Eui-Young^1 ; Lee, Seung-Yeol^1 ; Kim, Joonsoo^1 ; Cho, Jaebum^1 ; Lee, Byoungho^1

National Creative Research Center for Active Plasmonics Application Systems, Inter-University Semiconductor Research Center, School of Electrical Engineering, Seoul National University, Seoul

151-744, Korea, Republic of^1

关键词: Bi-layered structure;    Biological science;    Chiral metamaterial;    Chiral metamaterials;    Layered Structures;    Optical activity;    Optical manipulation;    Rotational forces;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/619/1/012057/pdf
DOI  :  10.1088/1742-6596/619/1/012057

来源: IOP

【 摘 要 】

Recently it has been demonstrated that chiral metamaterials show giant optical activity and circular dichroism. However, it has been rarely known about rotational force generated by incident wave in chiral metamaterials. We calculate the rotational force in the bilayered gammadion chiral metamaterial. In addition, we show that a bi-layered structure, which has greater optical activity than a single-layered structure, changes the rotational force tendency greatly. This result can be used as a possible optical manipulation in biological sciences.