Lindfors K, Kalkbrenner T, Stoller P, Sandoghdar V
Laboratory of Physical Chemistry, Swiss Federal Institute of Technology (ETH), CH-8093 Zurich, Switzerland.
Phys Rev Lett. 2004 Jul 16;93(3):037401. doi: 10.1103/PhysRevLett.93.037401. Epub 2004 Jul 15.
We combine confocal microscopy using supercontinuum laser illumination and an interferometric detection technique to identify single nanoparticles of diameter below 10 nm. Spectral analysis of the signal allows us to record the plasmon resonance of a single nanoparticle. Our results hold great promise for fundamental studies of the optical properties of single metal clusters and for their use in biophysical applications.
我们结合使用超连续激光照明的共聚焦显微镜和干涉检测技术来识别直径小于10纳米的单个纳米颗粒。对信号进行光谱分析使我们能够记录单个纳米颗粒的等离子体共振。我们的结果对于单个金属簇光学性质的基础研究及其在生物物理应用中的应用具有很大的前景。
