Light Extraction with Dielectric Nanoantenna Arrays
Light Extraction with Dielectric Nanoantenna Arrays
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DOI：
10.1021/nn900481v
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发表时间：
2009-09-01
期刊：
影响因子：
17.1
通讯作者：
Mazzoldi, Paolo
中科院分区：
文献类型：
--
作者：
Pellegrini, Giovanni;Mattei, Giovanni;Mazzoldi, Paolo
SiO2和TiO2介电纳米颗粒以线性阵列排列，支持集体模式，并用作介电纳米天线。电动力学计算表明，强大的，可调的无损光提取获得在很宽的光谱范围内，包括紫外线，可见光和近红外区域，III反对孤立的介电纳米粒子的增强功能差。发射量子效率相比，采用金属结构获得的实现，具有较强的发射增强，即使差的发射极的位置和偶极矩取向。
SiO2 and TiO2 dielectric nanoparticles are arranged in linear arrays, supporting collective modes, and employed as dielectric nanoantennae. Electrodynamic calculations show that strong, tunable lossless light extraction is obtained in a wide spectral range, including UV, visible, and near-infrared regions, III opposition to poor enhancement features of isolated dielectric nanoparticles. Emission quantum efficiencies comparable to those obtained employing metallic structures are achieved, with strong emission enhancement even for poor emitter position and dipole moment orientation.