Large-Area 3D Chiral Plasmonic Structures

被引：274

作者：

Frank, Bettina ^{[1
,2
]}

Yin, Xinghui ^{[1
,2
]}

Schaeferling, Martin ^{[1
,2
]}

Zhao, Jun ^{[1
,2
]}

Hein, Sven M. ^{[1
,2
]}

Braun, Paul V. ^{[3
]}

Giessen, Harald ^{[1
,2
]}

机构：

[1] Univ Stuttgart, Phys Inst 4, D-70569 Stuttgart, Germany

[2] Univ Stuttgart, Res Ctr SCoPE, D-70569 Stuttgart, Germany

[3] Univ Illinois, Beckman Inst, Dept Mat Sci & Engn, Urbana, IL 61801 USA

来源：

ACS NANO | 2013年 / 7卷 / 07期

基金：

欧洲研究理事会;

关键词：

hole-mask colloidal nanolithography; large-area chiral gold nanostructures; plasmonics; chirality; circular dichroism; dipole model; SHADOW NANOSPHERE LITHOGRAPHY; METAL NANOPARTICLE ASSEMBLIES; CIRCULAR-DICHROISM; OPTICAL METAMATERIALS; NANOSTRUCTURES; OLIGOMERS; BIOMOLECULES; FABRICATION; ABSORPTION; MOLECULES;

D O I：

10.1021/nn402370x

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We manufacture large-area plasmonic structures featuring 3-dimensional chirality by colloidal nanohole lithography. By varying the polar rotating speed of the samples during gold evaporation, we can fabricate spiral-type ramp nanostructures. The optical properties show chiroptical resonances in the 100 to 400 THz frequency region (750 to 3000 nm), with circular dichroism values of up to 13%. Our method offers a simple low-cost manufacturing method of cm(2)-sized chiral plasmonic templates for chiroptical applications such as stereochemical enantiomer sensors.

引用

页码：6321 / 6329

页数：9

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