波罗的海琥珀的红外全息成像研究初探

么远; 黄昊翀; 陈星韵; 郭钰; 杨彪; 郑志远

doi:10.15964/j.cnki.027jgg.2023.01.005

波罗的海琥珀的红外全息成像研究初探

么远^{1, 2,},
黄昊翀^1, ,,
陈星韵²,
郭钰³,
杨彪²,
郑志远¹

1.
中国地质大学(北京)数理学院，北京 100083
2.
中国地质大学(北京)珠宝学院，北京 100083
3.
中国地质大学(北京)水资源与环境学院，北京 100083

基金项目:

国家自然科学基金项目 61805214

中央高校基本科研业务费拔尖青年教师创新能力培养项目 2652019107

中央高校基本科研业务费拔尖青年教师创新能力培养项目 2652020032

大学生创新创业项目 X202111415289

详细信息

作者简介:
么远(2001-)，女，本科生，主要从事红外全息成像方向的研究。E-mail：yy7647@126.com

通讯作者:
黄昊翀(1989-)，男，博士，副教授，物理实验中心副主任，主要从事太赫兹数字全息、成像、光谱等方向的研究工作。E-mail：hchhuang@cugb.edu.cn

中图分类号: TN216;TN219; TS93
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出版历程
- 收稿日期: 2022-05-18
- 刊出日期: 2023-01-30

Preliminary Study on Infrared Holographic Imaging of Amber from the Baltic Sea

1.
School of Science, China University of Geosciences, Beijing 100083, China
2.
School of Gemmology, China University of Geosciences, Beijing 100083, China
3.
School of Water Resources and Environment, China University of Geosciences, Beijing 100083, China

摘要

摘要: 为探究琥珀的光学特性与成分之间的联系，进一步建立琥珀真伪辨识的有效红外参数，利用红外全息术对5块波罗的海琥珀样品进行了成像探测，通过显微镜、X射线荧光光谱术辅助解析成像效果。根据红外全息原理，利用近红外激光光源搭建平行光立式拍摄光路，获取了琥珀样品不同位置的全息图并进行重建，图像显示琥珀样品的不同位置成像效果具有差异。针对琥珀样品的不同位置对红外波段透过率差异的情况，进行X射线荧光光谱分析，获得其不同位置的元素含量，并结合红外全息成像结果，分析得出S元素和Si元素是影响琥珀红外透过率的主要元素，含有包裹体的位置比不含包裹体位置的所含S元素含量低，含有包裹体的位置比不含包裹体位置的所含Si元素含量高，Si元素有利于红外透过，S元素不利于红外透过。研究表明，立式平行光拍摄光路适合于琥珀红外全息成像，是一种新型琥珀表征光学工具。
- 琥珀 /
- 红外数字全息 /
- 红外透过率 /
- 拍摄光路 /
- 波罗的海
Abstract: In order to explore the relationship between the optical properties and composition of amber and further establish the effective infrared parameters of amber authenticity identification, infrared holographic method was used to image and detect 5 amber samples from the Baltic Sea, and the imaging effect was analyzed by microscope and X-ray fluorescence spectroscopy. According to the principle of infrared holography, the parallel light vertical shooting optical path is built by using the near-infrared laser light source, and the hologram of different positions of the amber sample is obtained and reconstructed, and the image shows that the imaging effect of the amber sample at different locations has differences. For the difference in the infrared band transmittance of the amber sample at different locations, X-ray fluorescence spectroscopy was performed to obtain the elemental content at different locations. Combined with the infrared holographic imaging results, the analysis showed that S element and Si element were the main elements affecting the infrared transmittance of amber, and the content of S element of the testing points with inclusion was lower than that without inclucion, and the content of Si element of the testing point with inclusion was higher than that without inclusion. It was concluded that the Si element was conducive to infrared transmission, and the S element was not conducive to infrared transmission. Studies have shown that the optical path of vertical parallel light shooting is suitable for amber infrared holographic imaging, which is a new optical tool for amber characterization.
- amber /
- infrared digital holography /
- infrared transmittance /
- shooting light path /
- the Baltic Sea

HTML全文

图 1 琥珀样品

Figure 1. Amber samples

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图 2 光路搭建原理图

Figure 2. Schematic diagram of optical path construction

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图 3 琥珀样品a和样品b显微图像

Figure 3. Micrograph of amber samples a and b

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图 4 琥珀样品的红外光谱

Figure 4. IR spectra of the amber samples

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图 5 琥珀样品中不同位置的SO₃含量

Figure 5. SO₃ content in different parts of the amber samples

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图 6 琥珀样品中不同位置的SiO₂含量

Figure 6. SiO₂ content in different parts of the amber samples

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图 7 琥珀样品c的振幅图(a)，相位图(b)和全息图(c)

Figure 7. Amplitude diagram (a), phase diagram (b), and hologram (c) of the amber sample c

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图 8 琥珀样品c包裹体的振幅图(a), 相位图(b)和全息图(c)

Figure 8. Amplitude diagram (a), phase diagram (b), and hologram (c) of inclusion of the amber sample c

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图 9 琥珀样品a包裹体的振幅图(a)、相位图(b)和全息图(c)

Figure 9. Amplitude diagram (a), phase diagram (b), and hologram (c) of inclusion of the amber sample a

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图 10 琥珀样品b包裹体的振幅图(a)、相位图(b)和全息图(c)

Figure 10. Amplitude diagram (a), phase diagram (b), and hologram (c) of inclusion of the amber sample b

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图 11 琥珀样品d包裹体的振幅图(a)、相位图(b)和全息图(c)

Figure 11. Amplitude diagram (a), phase diagram (b), and hologram (c) of inclusion the of amber sample d

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图 12 琥珀e包裹体的振幅图(a)、相位图(b)和全息图(c)

Figure 12. Amplitude diagram (a), phase diagram (b), and hologram (c) of inclusion of the amber sample e

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表 1 5块琥珀样品的基本特征

Table 1 Basic characteristic of the 5 amber samples

样品号	产地	特征描述
琥珀a	波罗的海	金黄色，不规则块状，透明度好，内含蚊子包裹体
琥珀b	波罗的海	黄褐色，不规则块状，透明度较差，内含昆虫翅膀包裹体
琥珀c	波罗的海	金黄色，不规则块状，透明度好，内含蚊子包裹体
琥珀d	波罗的海	金黄色，不规则块状，透明度好，有裂隙，内含昆虫包裹体
琥珀e	波罗的海	蜜黄色，不规则块状，透明度较好，内含昆虫包裹体

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表 2 琥珀样品的XRF测试结果

Table 2 XRF results of the amber samples w_B/%

氧化物	琥珀a	琥珀b	琥珀c	琥珀d	琥珀e
SO₃	80.41	92.09	77.67	71.79	83.84
SiO₂	16.22	5.30	18.04	25.80	14.22
K₂O	1.373	-	1.94	-	-
CuO	-	1.42	0.63	1.02	-

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