Yasuda Takashi, Kawada Yoichi, Toyoda Haruyoshi, Takahashi Hironori
Opt Express. 2007 Nov 12;15(23):15583-8. doi: 10.1364/oe.15.015583.
Recently terahertz imaging using two-dimensional E-O sampling has attracted much interest because it can acquire real-time terahertz images unlike a conventional raster scan method. We are applying this technique to the non-destructive measurement of opaque materials in a visible range. We acquired 10-fps consecutive terahertz transmission images: dripping water in a plastic pipe and metal included in a piece of gum. Since the obtained images were confirmed to be proportional to the electric field of the terahertz waves, the images in the present paper are useful for quantitative analysis. We also showed the signal-to-noise ratio of the terahertz images.
最近，使用二维电光采样的太赫兹成像引起了广泛关注，因为与传统的光栅扫描方法不同，它可以获取实时太赫兹图像。我们正在将这项技术应用于可见光范围内不透明材料的无损测量。我们获得了每秒10帧的连续太赫兹透射图像：塑料管道中的滴水和一块口香糖中的金属。由于所获得的图像被证实与太赫兹波的电场成正比，因此本文中的图像对于定量分析很有用。我们还展示了太赫兹图像的信噪比。
