Faraday Rotation Imaging Microscope with Microsecond Pulse Magnet.
Faraday Rotation Imaging Microscope with Microsecond Pulse Magnet.
复制标题
带微秒脉冲磁铁的法拉第旋转成像显微镜。
DOI：
10.1016/j.jmmm.2015.06.031
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发表时间：
2015
影响因子：
2.7
通讯作者：
Satoshi Tsukahara and Hitoshi Watarai
中科院分区：
文献类型：
--
作者：
Masayori Suwa;Satoshi Tsukahara and Hitoshi Watarai
我们制造了一台高性能的法拉第旋转(FR)成像显微镜，它使用了一个微秒脉冲磁体，其中包括一个绝缘的栅极双极晶体管和一个2μF电容器。我们的显微镜产生的图像比以前使用毫秒脉冲磁铁的显微镜产生的图像更稳定和更灵敏；这些改进可能是由于高重复率和可以忽略的焦耳加热效应。脉冲电流对磁体线圈的机械振动有明显的抑制作用。本发明的荧光显微镜在1.7℃下，在10分钟内从1000个荧光图像中构建了平均图像。应用于区分微血管中的三种苯衍生物以及球形聚苯乙烯和聚甲基丙烯酸甲酯微粒的无振荡成像，证明了其高性能。
We have fabricated a high-performance Faraday rotation (FR) imaging microscope that uses a microsecond pulse magnet comprising an insulated gated bipolar transistor and a 2 μF capacitor. Our microscope produced images with greater stability and sensitivity than those of previous microscopes that used millisecond pulse magnet; these improvements are likely due to high repetition rate and negligible Joule heating effects. The mechanical vibrations in the magnet coil caused by the pulsed current were significantly reduced. The present FR microscope constructed an averaged image from 1000 FR images within 10 min under 1.7 T. Applications of the FR microscope to discriminating three benzene derivatives in micro-capillaries and oscillation-free imaging of spherical polystyrene and polymethyl methacrylate microparticles demonstrated its high performance.