基于数字全息显微技术的光聚合物折射率测量

doi:10.3969/j.issn.0255-8297.2022.02.001

应用科学学报 ›› 2022, Vol. 40 ›› Issue (2): 179-189.doi: 10.3969/j.issn.0255-8297.2022.02.001

• 通信工程 • 上一篇

基于数字全息显微技术的光聚合物折射率测量

李伟霞^1,2, 黄素娟^1,2, 闫成^1,2, 夏胜利^1,2, 尹伟豪^1,2

1. 上海大学特种光纤与光接入网重点实验室, 上海 200444;
2. 上海大学特种光纤与先进通信国际合作联合实验室, 上海 200444

收稿日期:2021-04-21 发布日期:2022-04-01
通信作者: 黄素娟，教授，博导，研究方向为光电信息处理。E-mail：sjhuang@shu.edu.cn E-mail:sjhuang@shu.edu.cn
基金资助:
国家自然科学基金（No. 62075125）；上海市科委科研计划项目（No. 20DZ2204900， No. 19DZ2294000）；高等学校学科创新引智计划（No. D20031）资助

Refractive Index Measurement of Photopolymer Based on Digital Holographic Microscopy

LI Weixia^1,2, HUANG Sujuan^1,2, YAN Cheng^1,2, XIA Shengli^1,2, YIN Weihao^1,2

1. Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Shanghai University, Shanghai 200444, China;
2. Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication, Shanghai University, Shanghai 200444, China

Received:2021-04-21 Published:2022-04-01

摘要/Abstract

摘要： 提出了一种基于数字全息显微技术（digital holographic microscopy，DHM）的光聚合物折射率测量方法。采用马赫-曾德尔离轴干涉系统记录光聚合物的数字全息图，用混合重建算法提取高精度的相位分布。结合光学轮廓仪测量的光聚合物的形貌分布，通过图像配准得到光聚合物的折射率分布。定量分析了光聚合物在紫外固化过程中的折射率变化，利用DHM获取光聚合物的动态相位分布，进而得到光聚合物的动态折射率分布，绘制了平均折射率随曝光时间的变化曲线。该方法可用于揭示微光学元件的光学性能，以设计高质量微光学系统。

关键词: 数字全息显微技术, 全息图, 相位提取, 光聚合物折射率, 紫外固化过程

Abstract: A method based on the digital holographic microscopy (DHM) for measuring the refractive index of photopolymer is proposed. The digital hologram is recorded by the Mach-Zehnder off-axis interference system. The high-precision phase distribution is extracted by the hybrid reconstruction algorithm. Combining the profile distribution measured by optical profilometer, the refractive index of photopolymer is obtained by image registration. The evolution of refractive index of photopolymer during the UV curing process is quantitatively analyzed. The dynamic phase distribution of photopolymer is measured by DHM, and then the dynamic refractive index distribution is obtained. The relationship between the average refractive index and exposure time is plotted. The proposed method can be used to reveal the optical performance of microscopic optical devices and design high-quality optical systems.

Key words: digital holographic microscopy(DHM), hologram, phase extraction, refractive index of photopolymer, UV curing process

中图分类号:

TN26

李伟霞, 黄素娟, 闫成, 夏胜利, 尹伟豪. 基于数字全息显微技术的光聚合物折射率测量[J]. 应用科学学报, 2022, 40(2): 179-189.

LI Weixia, HUANG Sujuan, YAN Cheng, XIA Shengli, YIN Weihao. Refractive Index Measurement of Photopolymer Based on Digital Holographic Microscopy[J]. Journal of Applied Sciences, 2022, 40(2): 179-189.

参考文献

[1] Liu X, Guthrie J T, Bryant C. A study of the processing of flexographic solid-sheet photopolymer printing plates[J]. Surface Coatings International Part B:Coatings Transactions, 2002, 85(4):313-319.
[2] Ma H, Jen A K Y, Dalton L R. Polymer-based optical waveguides:materials, processing, and devices[J]. Advanced Materials, 2002, 14(19):1339-1365.
[3] Piao M L, Kim N. Achieving high levels of color uniformity and optical efficiency for a wedgeshaped waveguide head-mounted display using a photopolymer[J]. Applied Optics, 2014, 53(10):2180-2186.
[4] De Boer J, Visser R J, Melis G P. Time-resolved determination of volume shrinkage and refractive index change of thin polymer films during photopolymerization[J]. Polymer, 1992, 33(6):1123-1126.
[5] Dhar L, Curtis K, Tackitt M, et al. Holographic storage of multiple high-capacity digital data pages in thick photopolymer systems[J]. Optics Letters, 1998, 23(21):1710-1712.
[6] Losurdo M, Bruno G, Irene E A. Anisotropy of optical properties of conjugated polymer thin films by spectroscopic ellipsometry[J]. Journal of Applied Physics, 2003, 94(8):4923-4929.
[7] Hilfiker J N, Synowicki R A, Bungay C L, et al. Spectroscopic ellipsometry for polymer thin films[J]. Solid State Technology, 1998, 41(10):101-110.
[8] Ay F, Kocabas A, Kocabas C, et al. Prism coupling technique investigation of elasto-optical properties of thin polymer films[J]. Journal of Applied Physics, 2004, 96(12):7147-7153.
[9] Gissibl T, Wagner S, Sykora J, et al. Refractive index measurements of photo-resists for three-dimensional direct laser writing[J]. Optical Materials Express, 2017, 7(7):2293-2298.
[10] Gao A, Hu Q, Zhai Q L, et al. Measurement of refractive index of active photopolymer films[C]//International Symposium on Precision Engineering Measurements and Instrumentation, 2010, 7544:648-654.
[11] Arosa Y, López-Lago E, De La Fuente R. Refractive index retrieval in the UV range using white light spectral interferometry[J]. Optical Materials, 2018, 82:88-92.
[12] Zhang Q K, Zhong S C, Zhong J F, et al. Ultrahigh-accuracy measurement of refractive index curves of optical materials using interferometry technology[J]. Measurement, 2018, 122:40-44.
[13] Hadis M A, Tomlins P H, Shortall A C, et al. Dynamic monitoring of refractive index change through photoactive resins[J]. Dental Materials, 2010, 26(11):1106-1112.
[14] Charrière F, Marian A, Montfort F, et al. Cell refractive index tomography by digital holographic microscopy[J]. Optics Letters, 2006, 31(2):178-180.
[15] Su J W, Hsu W C, Chou C Y, et al. Digital holographic microtomography for high-resolution refractive index mapping of live cells[J]. Journal of Biophotonics, 2013, 6(5):416-424.
[16] Zhang J W, Ma C J, Dai S Q, et al. Transmission and total internal reflection integrated digital holographic microscopy[J]. Optics Letters, 2016, 41(16):3844-3847.
[17] Avila L F, Freschi A A, Cescato L. Holographic technique for measurement of the kinetic constant and optical modulation of photosensitive materials[J]. Applied Optics, 2010, 49(18):3499-3505.
[18] Arimoto H, Watanabe W, Masaki K, et al. Measurement of refractive index change induced by dark reaction of photopolymer with digital holographic quantitative phase microscopy[J]. Optics Communications, 2012, 285(24):4911-4917.
[19] Besaga V R, Saetchnikov A V, Gerhardt N C, et al. Monitoring of photochemically induced changes in phase-modulating samples with digital holographic microscopy[J]. Applied Optics, 2019, 58(34):G41-G47.
[20] Pagliarulo V, Calabuig A, Grilli S, et al. Direct quantitative imaging of the writing stage in a photosensitive azopolymer by digital holography[J]. Soft Matter, 2019, 15(39):7809-7813.
[21] Lin Y Y, Dong L, Chen H G, et al. Phase distribution analysis of tissues based on the off-axis digital holographic hybrid reconstruction algorithm[J]. Biomedical Optics Express, 2017, 9(1):1-13.
[22] Dardikman G, Shaked N T. Review on methods of solving the refractive index-thickness coupling problem in digital holographic microscopy of biological cells[J]. Optics Communications, 2018, 422:8-16.
[23] Maes F, Collignon A, Vandermeulen D, et al. Multimodality image registration by maximization of mutual information[J]. IEEE Transactions on Medical Imaging, 1997, 16(2):187-198.

基于数字全息显微技术的光聚合物折射率测量

Refractive Index Measurement of Photopolymer Based on Digital Holographic Microscopy

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