基于平行平晶的三步相干衍射成像系统

罗勇; 李拓; 李桂林; 史祎诗

doi:10.3788/CO.20181106.1032

基于平行平晶的三步相干衍射成像系统

罗勇^{1, 2,},
李拓³,
李桂林^{1, 2},
史祎诗^{1, 2, ,}

1.
中国科学院大学光电学院, 北京 100049
2.
中国科学院光电研究院, 北京 100094
3.
西京学院理学院, 陕西西安 710123

基金项目:

国家自然科学基金 61575197

中国科学院科教融合基金

中国科学院青年创新促进会项目 2017489

王宽诚教育基金会项目

详细信息

作者简介:
罗勇(1990-), 男, 贵州清镇人, 硕士研究生, 2010年于海南师范大学(自动化)获得学士学位, 2018年于中国科学院大学(光学工程)获得硕士学位, 现为中国航天科工第十研究院设计师, 主要从事可见光/红外光学成像与图像处理方面的研究。E-mail:flymqi@foxmail.com

史祎诗(1981—)，男，湖北应城人，教授，2003年于东南大学获学士学位，2008于中国科学院大学获博士学位，主要从事光电信息处理领域的理论与技术方面的研究。E-mail:sysopt@126.com

中图分类号: O439
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出版历程
- 收稿日期: 2018-01-29
- 修回日期: 2018-03-30
- 刊出日期: 2018-12-01

Three-step coherent diffraction imaging system based on parallel plates

doi: 10.3788/CO.20181106.1032

LUO Yong^{1, 2
,},
LI Tuo³,
LI Gui-lin^{1, 2},
SHI Yi-shi^{1, 2
, ,}

1.
School of Optoelectronics, University of Chinese Academy of Sciences, Beijing 100049, China
2.
Academy of Opto-Electronics, Chinese Academy of Sciences, Beijing 100094, China
3.
School of Science, Xijing University, Xi'an 710123, China

Funds:

National Natural Science Foundation of China 61575197

Fusion Foundation of Research and Education of CAS

Youth Innovation Promotion Association CAS 2017489

K.C.Wong Education Foundation

More Information

Author Bio:
LUO Yong(1990—), male, from Qingzhen, Guizhou, master′s degree, obtained a bachelor′s degree in Automation from Hainan Normal University in 2010 and a master's degree in Optical Engineering from the University of Chinese Academy of Sciences in 2018. He is currently a Designer at the 10th Research Institute of China Aerospace Science and Technology and is mainly engaged in visible/infrared optical imaging and image processing research. E-mail:flymqi@foxmail.com

SHI Yi-shi(1981—), male, from Hubei Yingcheng, is a professor who obtained a bachelor's degree from Southeast University in 2003 and a doctorate from the University of Chinese Academy of Sciences in 2008. He is mainly engaged in theoretical and technical research in the field of optoelectronic information processing. E-mail:sysopt@126.com

Corresponding author: SHI Yi-shi, E-mail:sysopt@126.com

摘要

摘要: 传统单光束多强度重建（SBMIR）系统中，多次平移图像传感器所积累的误差导致光电成像系统的成像效果及有效分辨率降低，为了解决这一问题。本文提出基于平行平晶的三步相干衍射成像系统，采取插入或抽取2块平行平晶的方法获取3个不同的衍射面，实现了对复振幅型物体的成像及恢复重建。数值模拟及实验表明，系统有效克服了SBMIR系统中数次平移的误差积累问题，且仅需记录3个衍射面，避免过采样。而且光学系统实现简便、可重复性高。
- 单光束多强度 /
- 相干衍射成像 /
- 平行平晶 /
- 复振幅
Abstract: In a traditional single beam multiple-intensity reconstruction(SBMIR) system, error is accumulated by multiple translational image sensors, which reduces the imaging effect and the effective resolution of the photoelectric imaging system. In this paper, a three-step coherent diffraction imaging system based on parallel plates is proposed. Three different diffraction planes are obtained by inserting or extracting two parallel plates and imaging and restoration reconstruction of complex amplitude objects are achieved. The numerical simulation and experiments show that the system overcomes the error accumulation problem of several translations in the SBMIR system, and one only needs to record three diffraction surfaces to avoid oversampling. The proposed optical system is easy to implement and has high repeatability.
- the single-beam multiple-intensity /
- coherent diffraction imaging /
- parallel plates /
- complex amplitude

HTML全文

图 1 系统结构比较及原理分析

Figure 1. Structural comparison and principle analysis of proposed system

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图 2 关键算法框图

Figure 2. Block diagram of the key algorithm

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图 3 数值模拟分析及比较

Figure 3. Numerical simulation analysis and comparison

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图 4 恢复重建后相位分布比较

Figure 4. Comparison of phase distribution after restoration and reconstruction

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图 5 复振幅型样品的实验结果

Figure 5. Experimental results of complex amplitude type samples

下载: 全尺寸图片幻灯片

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