A flexible and wearable terahertz scanner
A flexible and wearable terahertz scanner
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DOI：
10.1038/nphoton.2016.209
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发表时间：
2016-12-01
期刊：
影响因子：
35
通讯作者：
Kawano, Y.
中科院分区：
文献类型：
--
作者：
Suzuki, D.;Oda, S.;Kawano, Y.
基于太赫兹（THz）波的成像技术在强大的非侵入性检查方法中具有巨大的应用潜力。然而，大多数真实物体具有各种三维曲率，现有的太赫兹技术在对此类配置进行成像时经常遇到困难，这限制了太赫兹成像应用的有用范围。在这里，我们报告了基于碳纳米管的灵活可穿戴太赫兹扫描仪的开发。我们在 0.14 至 39 THz 的宽频带内实现了室温太赫兹检测，并开发了便携式太赫兹扫描仪。使用该扫描仪，我们对隐藏在不透明物体、弯曲薄膜的破损和金属杂质后面的样品以及注射器的多视图扫描进行了太赫兹成像。我们演示了人手的被动生物识别太赫兹扫描。我们的结果预计将对无损和非接触式检查产生重大影响，例如用于持续监测健康状况的体检。
Imaging technologies based on terahertz (THz) waves have great potential for use in powerful non-invasive inspection methods. However, most real objects have various three-dimensional curvatures and existing THz technologies often encounter difficulties in imaging such configurations, which limits the useful range of THz imaging applications. Here, we report the development of a flexible and wearable THz scanner based on carbon nanotubes. We achieved room-temperature THz detection over a broad frequency band ranging from 0.14 to 39 THz and developed a portable THz scanner. Using this scanner, we performed THz imaging of samples concealed behind opaque objects, breakages and metal impurities of a bent film and multi-view scans of a syringe. We demonstrated a passive biometric THz scan of a human hand. Our results are expected to have considerable implications for non-destructive and non-contact inspections, such as medical examinations for the continuous monitoring of health conditions.