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Position-sensitive detectors based on redshifts in photoluminescence spectra

机译：基于光致发光光谱的射频的位置敏感探测器

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摘要

We have proposed and demonstrated position-sensitive detectors based on the spectral changes in fluorescent waveguides. The first prototype is a transparent heat-shrink tubing containing an organic luminescent dye at its core. With a laser beam incident on this linear fluorescent tubing, the redshift in the photoluminescence (PL) spectrum observed at its edge increases with the distance from the incident point. The range for position sensing is 2 cm. It is extended to 280 cm by adopting a scintillating fiber in our second experiment. Two-stage conversion enables two-dimensional position detection. We have attached two linear fluorescent tubing to a planar 50 mm x 50 mm x 8 mm fluorescent waveguide. When a laser beam excites the first luminescent material at a single spot in the planer waveguide, PL photons propagate to its edges and excite the second luminescent material in the two linear waveguides. Photon division between these linear waveguides gives the first coordinate. The second coordinate is given by the redshift in the linear waveguides. We have observed that the maximum error in position estimation is 1.5 mm. Unlike the conventional semiconductor technologies, no electronic components are required for the sensor head. This robust technology might be suited for deployment in large-scale harsh environments
机译：我们已经基于荧光波导的光谱变化提出和展示了位置敏感探测器。第一原型是透明的热缩管，其核心含有有机发光染料。通过在该线性荧光管上入射的激光束，在其边缘观察到的光致发光（PL）光谱的红移随着入射点的距离而增加。位置感测的范围是2厘米。在我们的第二种实验中采用闪烁的纤维，它延伸到280厘米。两级转换使得能够进行二维位置检测。我们将两个线性荧光管连接到平面50mm×50mm×8mm荧光波导。当激光束在刨波导中的单点激发第一发光材料时，Pl光子在其边缘中传播并激发两个线性波导中的第二发光材料。这些线性波导之间的光子分割给出了第一坐标。第二坐标由线性波导中的红移给出。我们观察到位置估计的最大误差为1.5毫米。与传统的半导体技术不同，传感器头不需要电子元件。这种强大的技术可能适用于大规模恶劣环境中的部署

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  • 来源
    《Optical engineering》 |2019年第7期|077108.1-077108.11|共11页
  • 作者

    Yasuhiro Tsutsumi; Ryo Matsumura; Masamichi Ohta; Ichiro Fujieda;

  • 作者单位

    Ritsumeikan University Department of Electrical and Electronic Engineering Kusatsu Shiga Japan;

    Ritsumeikan University Department of Electrical and Electronic Engineering Kusatsu Shiga Japan;

    Ritsumeikan University Department of Electrical and Electronic Engineering Kusatsu Shiga Japan;

    Ritsumeikan University Department of Electrical and Electronic Engineering Kusatsu Shiga Japan;

  • 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

    photoluminescence; sensors; absorption; radiation;

    机译：光致发光;传感器;吸收;辐射;

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