Abstract
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.
Original language | English |
---|---|
Pages (from-to) | 2992-2999 |
Number of pages | 8 |
Journal | Advanced Materials |
Volume | 28 |
Issue number | 15 |
Early online date | 23 Feb 2016 |
DOIs | |
Publication status | Published - 14 Apr 2016 |