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非单色X光傅里叶变换鬼成像模拟

Simulation of Fourier-Transform Ghost Imaging Using Polychromatic X-Ray Sources

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摘要

X光傅里叶变换鬼成像(FGI)有望实现台式纳米级显微系统, 但其光源为小型化实验室X光源, 单色性较差, 难以直接获取高质量的样品衍射谱。针对这一问题, 进行了非单色光FGI理论推导和数值模拟分析, 阐明了非单色光源对衍射谱失真的影响机制, 并在此基础上提出了衍射谱校正方法。基于不同波长对应的衍射谱之间的尺度变换关系, 可以建立样品衍射谱与非单色光强度关联函数之间的矩阵方程, 从而解算出样品衍射谱。

Abstract

Tabletop nanoscale microscopy can be performed using X-ray Fourier-transform ghost imaging (FGI). However, the X-ray source used in a tabletop FGI system is one miniaturized laboratory source with poor monochromatic quality, making it difficult to directly obtain high-quality diffraction patterns from a sample. To obtain high-quality patterns, the theoretical derivations and numerical simulations on FGI using a polychromatic source were performed. The mechanism of the influence of polychromatic light on the distortion of diffraction patterns in FGI was clarified, and further a diffraction-pattern correction method was proposed. Based on the scaling relation between the different X-ray wavelengths and the corresponding diffraction patterns, a matrix equation was derived linking the diffraction pattern of a sample and the polychromatic-intensity correlation function, using which the diffraction pattern of the sample can be obtained.

Newport宣传-MKS新实验室计划
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中图分类号:O434.19

DOI:10.3788/aos201939.0511003

所属栏目:成像系统

基金项目:国家自然科学基金(11627811)、 国家重点研发计划(2017YFB0503303)

收稿日期:2018-12-07

修改稿日期:2019-01-03

网络出版日期:2019-01-21

作者单位    点击查看

杨善初:中国科学院上海光学精密机械研究所量子光学重点实验室, 上海 201800中国科学院大学, 北京 100049
喻虹:中国科学院上海光学精密机械研究所量子光学重点实验室, 上海 201800
陆荣华:中国科学院上海光学精密机械研究所量子光学重点实验室, 上海 201800
谈志杰:中国科学院上海光学精密机械研究所量子光学重点实验室, 上海 201800中国科学院大学, 北京 100049
韩申生:中国科学院上海光学精密机械研究所量子光学重点实验室, 上海 201800

联系人作者:喻虹(yuhong@siom.ac.cn)

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引用该论文

Yang Shanchu,Yu Hong,Lu Ronghua,Tan Zhijie,Han Shensheng. Simulation of Fourier-Transform Ghost Imaging Using Polychromatic X-Ray Sources[J]. Acta Optica Sinica, 2019, 39(5): 0511003

杨善初,喻虹,陆荣华,谈志杰,韩申生. 非单色X光傅里叶变换鬼成像模拟[J]. 光学学报, 2019, 39(5): 0511003

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