Plasmon Resonance Tunability of Gold Nanoparticles Embedded in a Confined Cholesteric Liquid Crystal Host

被引：4
|
作者：
Caputo, R. [1 ,2 ]
De Sio, L. [1 ,2 ]
Cataldi, U. [1 ,2 ]
Umeton, C. [1 ,2 ]
机构：
[1] Univ Calabria, LICRYL, Liquid Crystals Lab, IPCF CNR, I-87036 Arcavacata Di Rende, CS, Italy
[2] Univ Calabria, Ctr Excellence CEMIECAL, Dept Phys, I-87036 Arcavacata Di Rende, CS, Italy
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2012年 / 559卷
关键词：
Cholesteric liquid crystals; diffraction gratings; metallic nanoparticles; plasmonic resonances; HOLOGRAPHIC GRATINGS; SIZE;
D O I：
10.1080/15421406.2012.658709
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Gold nanoparticles have been dissolved in a cholesteric liquid crystal and then infiltrated in a micro-periodic polymeric structure. This has been realized by combining a holographic step and a microfluidic etching process. The spectral behavior of the nano-composite soft-structure has been investigated in the UV-Vis range for two different polarization directions of an impinging probe light and in presence of external perturbations (electric field, temperature variation). Obtained results show a highly tunable plasmonic response of the material.
引用
收藏
页码：194 / 201
页数：8
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