北京理工大学 光电学院,北京 100081
周顺业(2001-),男,山西新绛人,硕士研究生,2023年于北京工业大学获得学士学位,主要从事光电测试技术及仪器的研究。E-mail: zsy_030824@163.com
汤 亮(1996-),女,吉林长春人,博士,助理研究员,2020年于北京工业大学获得硕士学位,2024年于北京理工大学获得博士学位,主要从事光学精密检测技术的研究。E-mail: 7520240174@bit.edu.cn
收稿:2026-04-14,
修回:2026-04-17,
网络首发:2026-06-26,
纸质出版:2026-07-10
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周顺业,汤亮,崔晗等.基于深度学习单帧干涉解耦的平行平板光学均匀性高精度测量[J].光学精密工程,2026,34(13):1981-1992.
ZHOU Shunye,TANG Liang,CUI Han,et al.High-precision deep learning-based single-frame interferometric decoupling for measuring optical homogeneity of parallel plates[J].Optics and Precision Engineering,2026,34(13):1981-1992.
周顺业,汤亮,崔晗等.基于深度学习单帧干涉解耦的平行平板光学均匀性高精度测量[J].光学精密工程,2026,34(13):1981-1992. DOI: 10.37188/OPE.20263413.1981. CSTR: 32169.14.OPE.20263413.1981.
ZHOU Shunye,TANG Liang,CUI Han,et al.High-precision deep learning-based single-frame interferometric decoupling for measuring optical homogeneity of parallel plates[J].Optics and Precision Engineering,2026,34(13):1981-1992. DOI: 10.37188/OPE.20263413.1981. CSTR: 32169.14.OPE.20263413.1981.
平行平板作为典型透射光学元件,广泛应用于光学检测、半导体制造及国防装备等领域,其光学均匀性对系统性能具有重要影响。针对现有光学均匀性高精度测量中存在的干涉混叠难以解耦、多帧采集耗时较长及环境噪声抑制困难等问题,提出一种基于深度学习单帧干涉解耦的平行平板光学均匀性高精度测量方法。通过构建混叠干涉图与单面干涉图之间的映射模型对单帧混叠干涉图进行解耦,从而获得前后表面各自的单表面干涉图,以实现干涉条纹有效分离。通过虚拟移相重构由单帧干涉图生成的等移相间隔序列,结合传统五步移相法进行相位提取与面形重建,进而实现平行平板光学均匀性高精度检测。构建了两阶段卷积神经网络模型,第一阶段网络用于实现混叠条纹到单面条纹的映射,第二阶段网络完成五步移相序列生成及前后表面面形解算,搭建了基于深度学习单帧干涉解耦的平行平板光学均匀性测量装置,并采用
Φ
75 mm和
Φ
50 mm平行平板样品进行了实验验证。实验结果表明,该方法测得的光学均匀性结果与ZYGO干涉仪测量结果一致性较好,绝对偏差达到10
-7
量级,仅需采集单帧混叠干涉图即可实现平行平板光学均匀性的高精度、快速测量,可为光学元件的高通量和现场化检测提供技术支撑。
Parallel plates, as typical transmission optical components, are widely employed in optical detection, semiconductor manufacturing, and defense applications. Their optical homogeneity has a significant impact on overall system performance. However, existing high-precision measurement methods face challenges, including difficulty in decoupling interference aliasing, time-consuming multi-frame acquisition, and limited capability in suppressing environmental noise. To address these limitations, a high-precision, deep learning-based single-frame interferometric decoupling method for measuring the optical homogeneity of parallel plates is proposed. First, a mapping model between aliased and single-sided interferograms is constructed to decouple the single-frame aliased interferogram, enabling the retrieval of single-sided interferograms for the front and back surfaces and effective separation of interference fringes. Subsequently, a virtual phase-shifting reconstruction is performed to generate a sequence with equal phase-shift intervals from the single-fr
ame interferogram. In combination with the conventional five-step phase-shifting method, phase extraction and surface profile reconstruction are achieved, enabling high-precision evaluation of optical homogeneity. A two-stage convolutional neural network is developed, in which the first stage performs the mapping from aliased fringes to single-sided fringes, and the second stage generates the five-step phase-shifting sequence and reconstructs the surface profiles of the front and back surfaces. In addition, a deep learning-based single-frame interferometric decoupling experimental system is established for optical homogeneity measurement. Experiments conducted on
Φ
75 mm and
Φ
50 mm parallel plate samples demonstrate that the proposed method yields results in good agreement with those obtained using a ZYGO interferometer, with absolute deviations on the order of 10⁻⁷. The proposed approach enables high-precision and rapid measurement of optical homogeneity using only a single-frame aliased interferogram, providing an effective solution for high-throughput and in situ inspection of optical components.
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