| 连续太赫兹波合成孔径数字全息成像方法 |
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| 引用本文： | 万 敏,黎维华,王大勇,?翟长超,戎 路,邓青华,黄昊翀.连续太赫兹波合成孔径数字全息成像方法[J].太赫兹科学与电子信息学报,2017,15(3):358-363. |
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| 作者姓名： | 万 敏 黎维华 王大勇 ?翟长超 戎 路 邓青华 黄昊翀 |
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| 作者单位： | College of Applied Science，Beijing University of Technology，Beijing 100124，China,Research Center of Laser Fusion，China Academy of Engineering Physics，Mianyang Sichuan 621999，China,1.College of Applied Science，Beijing University of Technology，Beijing 100124，China;2.Beijing Engineering Research Center of Precision Measurement and Control Technology and Instruments，Beijing 100124，China,College of Applied Science，Beijing University of Technology，Beijing 100124，China,College of Applied Science，Beijing University of Technology，Beijing 100124，China;2.Beijing Engineering Research Center of Precision Measurement and Control Technology and Instruments，Beijing 100124，China,Research Center of Laser Fusion，China Academy of Engineering Physics，Mianyang Sichuan 621999，China and College of Applied Science，Beijing University of Technology，Beijing 100124，China |
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| 基金项目： | 国家自然科学基金资助项目(61675010,61475011,61307010)；北京市教委科技重点项目(KZ201610005008)；中国工程物理研究院太赫兹科学技术基金资助项目(201406)；日新人才和中央支持地方专项配套项目；北京工业大学研究生科技基金资助项目(ykj-2015-12539) |
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| 摘 要： | 太赫兹波数字全息成像技术结合了太赫兹成像技术和数字全息成像技术的优势，是一种新型相衬成像技术，具有光源相干性要求低、光路结构简单、实时定量获取物光波复振幅信息等特点，非常适用于太赫兹波段成像。影响数字全息成像技术分辨力的因素有多种，其中一个主要因素是探测器靶面尺寸的大小，因此，提出合成孔径方法扩大探测器靶面尺寸，提高太赫兹数字全息的成像分辨力。文中搭建了连续太赫兹波同轴数字全息成像装置，获取了样品高质量、高分辨力的振幅和相衬图像。实验结果有效说明了合成孔径方法可以提高太赫兹数字全息成像分辨力。
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| 关 键 词： | 太赫兹成像 数字全息成像 合成孔径 高分辨力 |
| 收稿时间： | 2016/9/23 0:00:00 |
| 修稿时间： | 2016/11/23 0:00:00 |
Digital holography of continuous terahertz wave synthetic aperture |
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| WAN Min,LI Weihu,WANG Dayong?,ZHAI Changchao,RONG Lu,DENG Qinghua and HUANG Haochong.Digital holography of continuous terahertz wave synthetic aperture[J].Journal of Terahertz Science and Electronic Information Technology,2017,15(3):358-363. |
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| Authors: | WAN Min LI Weihu WANG Dayong? ZHAI Changchao RONG Lu DENG Qinghua and HUANG Haochong |
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| Abstract: | Terahertz digital holography is a new phase contrast imaging combining the advantages of terahertz imaging and digital holography. It only requires low coherence light source and a simple optical structure, and can access to quantitative real time complex amplitude of light wave. There are many factors influencing the resolution of digital holography. One of the main factors is the size of the target surface of the detector. Therefore, synthetic aperture method is proposed to enlarge the target size of the detector and improve the imaging resolution of terahertz digital holography. A continuous-wave terahertz digital holography device is built to obtain high quality and high resolution amplitude and phase contrast images. The experimental results show that the synthetic aperture method can improve the resolution of terahertz digital holographic imaging. |
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