Magnetic dipole based systems for probing optical magnetism
Magnetic dipole based systems for probing optical magnetism
复制标题
用于探测光磁的磁偶极子系统
DOI：
10.1063/1.2830650
复制
发表时间：
2008
影响因子：
3.2
通讯作者：
M. Noginov
中科院分区：
文献类型：
--
作者：
N. Noginova;G. Zhu;M. Mavy;M. Noginov
基于等离子体的超材料的最新进展表明，光场的磁分量可以受到材料的性质和金属纳米结构的几何形状的强烈影响，从而导致光学范围内的负磁导率和磁共振等有趣的效应。为了探测这种效应的实验，含有Eu 3+离子的系统可以用作光谱工具。通过对590nm处的磁偶极跃迁和615nm处的电偶极跃迁的比较研究，可以揭示出样品的磁场和电场的相对分布以及有效磁导率和介电常数的信息。我们报告这样的系统的发展，表现出非常高的排放效率，和第一个实验结果。
Recent advances in plasmonic-based metamaterials show that the magnetic component of an optical field can be strongly affected by the material’s properties and geometry of metallic nanostructures, leading to such interesting effects as negative magnetic permeability and magnetic resonance in the optical range. To probe such effects experimentally, systems containing Eu3+ ions can be used as spectroscopic tools. The study of the magnetic dipole-related transition at ∼590nm in comparison with the electric dipole-related transition at ∼615nm can reveal information on the relative distribution of magnetic and electric fields as well as effective permeability and permittivity. We report the development of such systems, demonstrating very high emission efficiency, and the first experimental results.