Programmable Extreme Chirality in the Visible by Helix-Shaped Metamaterial Platform

被引：70

作者：

Esposito, Marco ^{[1
,2
]}

Tasco, Vittorianna ^{[1
]}

Todisco, Francesco ^{[1
,2
]}

Cuscuna, Massimo ^{[1
]}

Benedetti, Alessio ^{[3
]}

Scuderi, Mario ^{[4
]}

Nicotra, Giuseppe ^{[4
]}

Passaseo, Adriana ^{[1
]}

机构：

[1] CNR, NANOTEC, Ist Nanotecnol, Polo Nanotecnol, C-O Campus Ecotekne,Via Monteroni, I-73100 Lecce, Italy

[2] Univ Salento, Dipartimento Mat Fis Ennio De Giorgi, I-73100 Lecce, Italy

[3] Univ Roma La Sapienza, Dipartimento DIET, Via Eudossiana 18, I-00184 Rome, Italy

[4] CNR, IMM, Sez Catania, Str 8,5, I-95121 Catania, Italy

来源：

NANO LETTERS | 2016年 / 16卷 / 09期

关键词：

Chiral metamaterials; dielectric chiral metamaterials; circular dichroism; optical rotation; plasmonics; DIAMOND-LIKE CARBON; CIRCULAR-DICHROISM; PHOTONIC CRYSTALS; GOLD; NANOSTRUCTURES; BIOMOLECULES; RESISTIVITY; POLARIZERS; DEPOSITION; MOLECULES;

D O I：

10.1021/acs.nanolett.6b02583

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The capability to fully control the chito-optical properties of metamaterials in the visible range enables a number of applications from integrated photonics to life science. To achieve this goal, a simultaneous, control over complex spatial and localized structuring as well as material composition at the nanoscale is required. Here, we demonstrate how circular dichroic bands and optical rotation can be effectively and independently tailored throughout the visible regime as a function of, the fundamental meta-atoms properties and of their three dimensional architecture in a the helix-shaped metamaterials. The record chiro-optical effects obtained in the visible range are accompanied by an additional control over optical efficiency, even in the plasmonic context. These achievements pave the way toward fully integrated chiral photonic devices.

引用

页码：5823 / 5828

页数：6

共 44 条

[21] DNA-based self-assembly of chiral plasmonic nanostructures with tailored optical response [J].