Ultrathin Suspended Chiral Metasurfaces for Enantiodiscrimination (Adv. Mater. 37/2022). Issue 37 (15th September 2022)

• Record Type: Journal Article
• Authors: Cen, Mengjia; Wang, Jiawei; Liu, Jianxun; He, Huilin; Li, Ke; Cai, Wenfeng; Cao, Tun; Liu, Yan Jun
• Is Part Of: Advanced materials. Volume 34:Issue 37(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-09-15
• Subjects: biosensors -- circular dichroism -- suspended bilayer metasurfaces; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.202270263
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract : Metasurfaces A self‐aligned suspended chiral bilayer metasurface via single‐step electron‐beam lithography is reported by Tun Cao, Yan Jun Liu, and co‐workers in article number 2203956 . A huge optical chirality of 221° μm −1 is achieved by the free‐standing metasurfaces with overall thickness of 100 nm. The bilayer metasurface demonstrates label‐free discrimination of chiral molecules at zeptomole level, with sensitivity orders of magnitude larger than conventional circular dichroism spectroscopy.