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Terahertz confocal microscopy with an injection-seeded terahertz parametric generator

机译：带有注射接种的太赫兹参数发生器的太赫兹共聚焦显微镜

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摘要

We report on the implementation of a confocal microscopy system based on an injection-seeded terahertz parametric generator working at 1.76 THz. The system has a fairly reliable long-term stable operation with pulse energy fluctuations <5%. We experimentally demonstrate a subwavelength lateral resolution of 158 μm, corresponding to 0.93λ. We also demonstrate the capability of resolving overlapping objects at the different longitudinal surfaces by imaging a designed sample. This is the first detailed demonstration of confocal microscopy based on a THz parametric source, which is helpful for the practical application of THz imaging technology.
机译：我们报告了基于以1.76 THz工作的注入种子的太赫兹参数发生器的共聚焦显微镜系统的实施情况。该系统具有相当可靠的长期稳定运行，脉冲能量波动<5％。我们通过实验证明了158μm的亚波长横向分辨率，对应于0.93λ。我们还演示了通过对设计样本进行成像来解决不同纵向表面上重叠对象的能力。这是基于THz参数源的共聚焦显微镜的首次详细演示，这有助于THz成像技术的实际应用。

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  • 来源
    《Optical engineering》 |2019年第6期|060503.1-060503.3|共3页
  • 作者

    Weipeng Kong; Zeyu Li; Guangbin Li; Qiang Yan; Mingrui Zou; Xun Zhou; Yu Qin;

  • 作者单位

    China Academy of Engineering Physics, Research Center of Laser Fusion, Mianyang, China;

    China Academy of Engineering Physics, Research Center of Laser Fusion, Mianyang, China;

    China Academy of Engineering Physics, Research Center of Laser Fusion, Mianyang, China;

    China Academy of Engineering Physics, Research Center of Laser Fusion, Mianyang, China;

    China Academy of Engineering Physics, Research Center of Laser Fusion, Mianyang, China;

    China Academy of Engineering Physics, Research Center of Laser Fusion, Mianyang, China;

    China Academy of Engineering Physics, Research Center of Laser Fusion, Mianyang, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    terahertz imaging; infrared and far-infrared lasers; confocal microscopy;

    机译：太赫兹成像红外和远红外激光器;共聚焦显微镜;

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