Full field imaging and spectroscopy of individual gold nanoparticles
Full field imaging and spectroscopy of individual gold nanoparticles
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DOI：
10.1051/epjap:2008136
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发表时间：
2008-08-01
影响因子：
1
通讯作者：
Atlan, M.
中科院分区：
文献类型：
--
作者：
Absil, E.;Tessier, G.;Atlan, M.
大多数涉及金属纳米颗粒标记的应用都需要对单个微珠进行快速成像和局部光谱分析。我们提出了一种基于与空间调制相关的制导激光照明的成像方法，该方法可以检测到10纳米以下的金颗粒。使用成像光谱仪和白色非相干照明，同一系统同时提供几个金珠子的单独光谱，允许单个金属颗粒和聚集体或灰尘之间的快速和选择性区分。
Most applications involving metallic nanoparticle labelling necessitate both fast imaging and local spectroscopy of individual beads. We present an imaging method based on a guided laser illumination associated to spatial modulation which allows the detection of gold particles down to 10 nm. Using an imaging spectrometer and white incoherent illumination, the same system delivers individual spectroscopy of several gold beads simultaneously, allowing a fast and selective discrimination between individual metal particles and aggregates or dust.