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首页> 外文期刊>Optics Letters >Photopolymer-based coaxial holographic lens for spectral confocal displacement and morphology measurement
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Photopolymer-based coaxial holographic lens for spectral confocal displacement and morphology measurement

机译：基于光聚合物的同轴全息镜片，用于光谱共焦位移和形态测量

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摘要

A spectral confocal displacement and morphology measurement device with a photopolymer-based coaxial holographic lens as a high dispersion element is developed. The linear dependence of the axial spatial position on the peak wave-length of dispersion spectrum provides a high accuracy and large range for measuring displacement and morphology. In the linear dispersion region, accompanied with a 120 nm shift of peak wavelength, the measure position range exceeds 20 mm. The available experimental accuracy of displacement and morphology can reach 47.5 mu m/0.5 nm using a commercial optical fiber spectrum with a resolution of 0.5 nm. Utilizing thin polymer-based holographic lens with high dispersion can effectively compact the device size. Simultaneously, it can provide a large axial dispersion for measuring the spatial position characterization compared with the traditional glass-based dispersion lens group. A holographic optical lens based on a photopolymer is expected to apply in high-precision surface morphology measurement of large-scale macroscopic objects. It will improve the measurement accuracy and accelerate the development of holographic optical elements. (C) 2019 Optical Society of America
机译：开发了一种光谱共聚焦位移和形态测量装置，其具有高分散元件作为高分散元件的光聚合物基同轴全息透镜。轴向空间位置对色散频率峰值波长的线性依赖性提供了测量位移和形态的高精度和大范围。在线性色散区域中，伴随120nm峰值波长的偏移，测量位置范围超过20mm。使用分辨率为0.5nm的商业光纤光谱，位移和形态的可用实验精度可达到47.5μm/ 0.5nm。利用具有高分散体的薄聚合物的全息透镜可以有效地紧凑，使装置尺寸紧凑。同时，它可以提供大的轴向分散体，用于测量与传统的玻璃基分散镜头组相比测量空间位置表征。基于光聚合物的全息光学透镜预期适用于大型宏观物体的高精度表面形态。它将提高测量精度并加速全息光学元件的开发。 （c）2019年光学学会

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  • 来源
    《Optics Letters》 |2019年第14期|共4页
  • 作者

    Liu Hongpeng; Wang Baohua; Wang Rui; Wang Mingchang; Yu Dan; Wang Weibo;

  • 作者单位

    Civil Aviat Univ China Dept Phys Tianjin 300300 Peoples R China;

    Civil Aviat Univ China Dept Phys Tianjin 300300 Peoples R China;

    Civil Aviat Univ China Dept Phys Tianjin 300300 Peoples R China;

    Dalian Univ Technol Dept Appl Phys Dalian 116024 Peoples R China;

    Tianjin Univ Technol Coll Sci Tianjin 300384 Peoples R China;

    Civil Aviat Univ China Dept Phys Tianjin 300300 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
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