论文标题
通过激光诱导的光学比对和雷利散射测量单纳米颗粒各向异性
Measurement of single nanoparticle anisotropy by laser induced optical alignment and Rayleigh scattering for determining particle morphology
论文作者
论文摘要
我们通过在空间中通过真空中的捕获光在太空中定向的单个光悬浮颗粒的角度散射来证明纳米颗粒形状的测量。该技术应用于一系列粒子几何形状，从完美的球形纳米圆形到八面体纳米晶体。我们表明，这种方法可以将形状差异降低到几种纳米，并在两个低阻尼环境中应用，如此处所示，以及在光学镊子中使用的传统过度阻尼的流体。
We demonstrate the measurement of nanoparticle shape by angularly resolved Rayleigh scattering of single optical levitated particles that are oriented in space via the trapping light in vacuum. This technique is applied to a range of particle geometries, from perfect spherical nanodroplets to octahedral nanocrystals. We show that this method can resolve shape differences down to a few nanometers and be applied in both low-damping environments, as demonstrated here, and in traditional overdamped fluids used in optical tweezers.
