Chiral near-fields around chiral dolmen nanostructure. (3rd November 2017)

• Record Type: Journal Article
• Authors: Fu, Tong; Wang, Tiankun; Chen, Yuyan; Wang, Yongkai; Qu, Yu; Zhang, Zhongyue
• Is Part Of: Journal of physics. Volume 50:Number 47(2017)
• Publication Date: 2017-11-03
• Subjects: chiral near-field -- chiral sensing -- circular dichroism; Physics -- Periodicals; 530
• DOI: 10.1088/1361-6463/aa8f81
• Languages: English
• ISSNs: 0022-3727

Abstract

Abstract: Discriminating the handedness of the chiral molecule is of great importance in the field of pharmacology and biomedicine. Enhancing the chiral near-field is one way to increase the chiral signal of chiral molecules. In this paper, the chiral dolmen nanostructure (CDN) is proposed to enhance the chiral near-field. Numerical results show that the CDN can increase the optical chirality of the near-field by almost two orders of magnitude compared to that of a circularly polarized incident wave. In addition, the optical chirality of the near-field of the bonding mode is enhanced more than that of the antibonding mode. These results provide an effective method for tailoring the chiral near-field for biophotonics sensors.