1.
Adv Mater
; 28(15): 2992-9, 2016 Apr 20.
Artigo
em Inglês
| MEDLINE
| ID: mdl-26914148
RESUMO
3D chirality is shown to be unnecessary for introducing strong circular dichroism for harmonic generations. Specifically, near-unity circular dichroism for both second-harmonic generation and third-harmonic generations is demonstrated on suitably designed ultrathin plasmonic metasurfaces with only 2D planar chirality. The study opens up new routes for designing chip-type biosensing platform, which may allow for highly sensitive detection of bio- and chemical molecules with weak chirality.