Article
Optics
Yuntao Wang, Lei Chen, Zhengyu Zhang, Jia Chen, Donghui Zheng, Chenhui Hu, Boran Zhang
Summary: In this paper, a novel absolute measurement method for a 300-mm-aperture vertical interferometer with gravity-induced deformation is proposed. This method does not require the operation of a reference flat and only needs one flip and one rotation of the testing flat to obtain the global surface. The algorithm was developed with variety reduction and iteration, and the gravity-induced deformation was analyzed using the Finite Element Method (FEM). The accuracy of the simulation reached 1.6 x10(-4) nm.
OPTICS AND LASERS IN ENGINEERING
(2022)
Article
Optics
Siyu Zhou, Vunam Le, Shilin Xiong, Yuetang Yang, Kai Ni, Qian Zhou, Guanhao Wu
Summary: The study introduces a dynamic three-degree-of-freedom measurement technique using dual-comb interferometry and a self-designed sensor, allowing for simultaneous determination of the absolute distance, pitch, and yaw of the GCC sensor. Experimental results demonstrate excellent ranging and angular precision, enabling accurate and fast measurements over long distances.
PHOTONICS RESEARCH
(2021)
Article
Physics, Multidisciplinary
Gabriela Barreto Lemos, Radek Lapkiewicz, Armin Hochrainer, Mayukh Lahiri, Anton Zeilinger
Summary: Measuring entanglement is crucial in various practical and foundational quantum experiments. Our experiment introduces a novel method to verify and measure entanglement in mixed quantum bipartite states by detecting only one subsystem. By utilizing single-particle interference patterns, we are able to access the information shared in entangled systems.
PHYSICAL REVIEW LETTERS
(2023)
Article
Optics
Dong Wook Shin, Hiraku Matsukuma, Ryo Sato, Wei Gao
Summary: This study proposes an angle sensor based on multiple beam interference of a Fabry-Perot etalon using a mode-locked femtosecond laser as the measurement beam. The output angles are evaluated by using estimated local maxima within a measurement bandwidth of the output fringe spectrum detected by an optical spectrum analyzer. The proposed method improves the accuracy of angle determination by one order of magnitude.
Article
Materials Science, Multidisciplinary
Paul Christopher Montgomery, Remy Claveau, Sebastien Marbach, Manuel Flury
Summary: The work reviewed here involves adapting white light interference microscopy for local spectroscopy to measure the optical properties of microscopic structures. By processing the polychromatic fringe signal with Fourier transform and carefully calibrating the optical system, local reflectance spectra measurements are made. This approach allows for rapid spectral mapping of spatially extended surfaces in a single scan.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2021)
Article
Optics
Zhen Li, Lirong Qiu, Lu Hu, Liping Lu, Desheng Zhu, Hanqiao Chen, Wencai Huang, Xiulin Wang
Summary: A novel method called even-power phase modulation is proposed in a self-mixing displacement sensor to improve measuring accuracy. By combining the even-power fast algorithm with the sinusoidal phase-modulation method, the spectrum of harmonic components is broadened, allowing for accurate reconstruction of the target's displacement. Simulation results show that this method effectively reduces reconstruction error compared to the electro-optic modulator phase modulation method. Experimental results demonstrate the feasibility and effectiveness of the method in the field of non-contact nanometer vibration measurement sensors.
Article
Chemistry, Multidisciplinary
Felix Steinmeyer, Dorothee Hueser, Rudolf Meess, Martin Stein
Summary: The novel physical measurement standard (PMS) for roughness measurements on involute gears bridges the gap between roughness measurements on planar surfaces and gear measurements, providing calibrated roughness values for various parameters and allowing measurements with both classic profilometers and gear measurement systems.
APPLIED SCIENCES-BASEL
(2021)
Article
Engineering, Electrical & Electronic
Jiarui Lin, Jialei Sun, Linghui Yang, Rao Zhang, Yongjie Ren
Summary: This article presents how the rotary laser surface model can be optimized for large-scale optoelectronic measurement systems and validates the effectiveness of the optimization models through experimental results.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Article
Optics
Dong Wook Shin, Hiraku Matsukuma, Ryo Sato, Eberhard Manske, Wei Gao
Summary: A new method is proposed to measure the spectral response of a Fabry-Perot etalon to a femtosecond laser by using a pair of spectral peaks with a spacing of an integer multiple of the etalon free spectral range. The optimized spacing is found to be N/2 for the minimum measurement error. The feasibility of the proposed method is demonstrated through experiments and uncertainty analysis.
Article
Optics
Shanyong Chen, Wenwen Lu, Jingyang Guo, Dede Zhai, Weiwei Chen
Summary: This paper presents a strategy for flexible surface metrology based on stitching interference microscopy, which divides the full aperture surface into small subapertures for measurement. The instrument shows high flexibility in measuring complex surfaces and enables simultaneous measurement of shape, waviness, and roughness.
OPTICS AND LASERS IN ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
H. L. Zheng, X. J. Ren, P. Liu, G. R. Jin
Summary: This paper introduces the application of the inversion estimator in quantum metrology, highlighting its similarity to the maximum likelihood estimator. It shows that in certain cases, this method can reach the limit, providing theoretical support for achieving super-resolved phase measurement.
RESULTS IN PHYSICS
(2022)
Article
Optics
Yunfei Yin, Lin Liu, Yu Bai, Jirigalantu, Hongzhu Yu, Bayanheshig, Zhaowu Liu, Wenhao Li
Summary: This research proposes a 3D measurement method based on 2D grating dual-channel and Littrow equal-optical path incidence to detect the displacement of a 2D grating in the X-, Y-, and Z-directions. Experimental results show that the proposed method has high accuracy and resolution, enabling nanoscale displacement measurement.
Article
Optics
Mikhail Toropov, Nikolay Chkhalo, Ilya Malyshev, Nikolay Salashchenko
Summary: This study proposes and investigates a high-aperture low-coherence interferometer based on a tipped single-mode optical fiber. By utilizing the central least-aberrated region of the diffracted wavefront, the interferometer achieves a record working aperture among known plane wavefront division intereferometers. It allows studying samples with a wide range of reflectance variation and demonstrates high-precision measurements for a spherical mirror.
Article
Optics
Xinyu Miao, Yifan Yu, Aobo Li, Jun Ma, Lei Chen, Jianxin Li, Qing Wang, Cong Wei, Rihong Zhu, Caojin Yuan
Summary: The paper proposes a new method for phase shifting in interferometric systems with large apertures, by moving the phase shifting procedure to the source module with a low coherence laser. The path matching procedure based on intensity variation is introduced to compensate the path difference between the two arms. Experimental results show excellent repeatability and stability, verifying the feasibility of the proposed method in large aperture interferometers.
OPTICS AND LASERS IN ENGINEERING
(2021)
Article
Engineering, Electrical & Electronic
Jieji Ren, Mingjun Ren, Lijian Sun, Limin Zhu, Xiangqian Jiang
Summary: A generative model-driven sampling strategy is proposed to reduce the number of sampling points while preserving measurement accuracy. By constructing a neural network architecture and applying fractional Brownian motion to simulate machining errors, surface error reconstruction with sparse sampling is achieved, significantly improving measurement efficiency.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Article
Optics
Shenghao Wang, Shijie Liu, Jianda Shao, Tianzhu Xu, Qi Lu, Shen Qi, Minghui Feng, Long Zhang
Article
Optics
Qi Lu, Shenghao Wang, You Zhou, Shijie Liu, Jianda Shao
Article
Instruments & Instrumentation
Qi Lu, Shijie Liu, Jianda Shao, You Zhou, Tianzhu Xu, Jingyu Pan, Shenghao Wang, Yunbo Bai, Xueke Xu
REVIEW OF SCIENTIFIC INSTRUMENTS
(2019)
Article
Optics
Qi Lu, Shijie Liu, Xiangchao Zhang, Tianzhu Xu, Jingyu Pan, Min Xu, Jianda Shao
Summary: The measurement method based on dual-optical path second-harmonic energy (SHE) rocking curve acquisition accurately determines the optical axis cut error of a nonlinear uniaxial crystal, with high measurement accuracy and fast measurement speed.
Article
Optics
Qi Lu, Shijie Liu, Junhua Wang, Min Xu, Jianda Shao
Summary: A pair of wedge prisms with opposite angular dispersion can be designed to eliminate spherical aberration, coma, and astigmatism, and be achromatic in convergent rays, reaching the diffraction limit for precise imaging in three dimensions. High-refractive index prisms are better at compensating for monochromatic aberrations, and tolerance analysis shows that the system can effectively work within the diffraction limit even with large optical manufacturing errors. A working F-number larger than 8.0 for the eyepiece is recommended.
OPTICAL ENGINEERING
(2021)
Article
Optics
Xu Zhang, Qi Lu, Yunbo Bai, Shijie Liu, Jianda Shao
Summary: A design of high-precision 4-in. transmission spheres is proposed for wide-band interferometric measurement, using a motorized precision rotation mount. The design is verified using OpticStudio software, showing that a transmission sphere with F-numbers of 1.0 to 3.3 can be designed based on the model, meeting the requirements of high-precision interferometric measurement.
OPTICAL ENGINEERING
(2021)
Article
Optics
Qi Lu, Yifan Ding, Wei Wang, Shijie Liu, Min Xu
Summary: This study designs a superachromat lens that achieves five-color correction in the 600-1600 nm waveband by combining the lens power of three thin lenses. The study derives the lens power combination conditions for the three lenses, introduces a metric to verify the correction, and proposes a method to improve the model's refractive index fitting accuracy. By iterating through ecofriendly glass materials, the study obtains 113 initial structures and selects the optimal structure through optimization. The research provides a theoretical basis and guidance for designing broadband superachromats with more color correction and smaller chromatic focal shift, and develops a broadband interferometer based on these theories.
Proceedings Paper
Engineering, Industrial
Xu Zhang, Qi Lu, Tianzhu Xu, Ying Sun, Shijie Liu, Dmitry Silin, Ilya Kozhevatov, Efim Khazanov
Summary: The phase-shifting algorithm has an effect on the accuracy of measurement in a Fizeau interferometer, but it is not a key factor.
OPTICAL METROLOGY AND INSPECTION FOR INDUSTRIAL APPLICATIONS IX
(2022)
Proceedings Paper
Instruments & Instrumentation
Qi Lu, Xu Zhang, Yunbo Bai, Ying Sun, Shijie Liu, Jianda Shao
Summary: The wide-spectrum plug-and-play Fizeau interferometric system presented in this paper can complete precision interferometric measurement at any wavelength in the range of 600-1600 nm with a maximum measurement aperture of 150 mm. The system can be designed with multiple optical fiber input terminals, different wavelengths share only one set of interferometric system, and no components need to be adjusted when switching the working wavelength. This development of the system is helpful to accurately measure the surface profile error of coated optical elements at a specified wavelength.
OPTICAL METROLOGY AND INSPECTION FOR INDUSTRIAL APPLICATIONS VIII
(2021)
Proceedings Paper
Optics
Shijie Liu, Longbo Xu, Xu Zhang, You Zhou, Qi Lu, Yunbo Bai, Jianda Shao
OPTICAL METROLOGY AND INSPECTION FOR INDUSTRIAL APPLICATIONS VII
(2020)
Proceedings Paper
Optics
Jingyu Pan, Shijie Liu, You Zhou, Qi Lu, Wenchao Ji
ELEVENTH INTERNATIONAL CONFERENCE ON INFORMATION OPTICS AND PHOTONICS (CIOP 2019)
(2019)
Proceedings Paper
Engineering, Industrial
Shijie Liu, Qi Lu, You Zhou, Xueke Xu, Jianda Shao, Zhouling Wu, Jian Chen, Ming Huang
OPTICAL MEASUREMENT SYSTEMS FOR INDUSTRIAL INSPECTION XI
(2019)
Proceedings Paper
Instruments & Instrumentation
Shijie Liu, Longbo Xu, Xiao Ma, Zhigang Zhang, You Zhou, Qi Lu, Yunbo Bai, Jianda Shao
OPTICAL MEASUREMENT SYSTEMS FOR INDUSTRIAL INSPECTION X
(2017)
Proceedings Paper
Astronomy & Astrophysics
Shijie Liu, LongBo Xu, You Zhou, Weili Zhang, Qi Lu, Wenlan Gao, Jianguo Wang, Zhaoyang Wei, Xueke Xu, Hongbo He, Jianda Shao
ADVANCED OPTICAL DESIGN AND MANUFACTURING TECHNOLOGY AND ASTRONOMICAL TELESCOPES AND INSTRUMENTATION
(2016)
Article
Optics
Yin Xiao, Lina Zhou, Wen Chen
Summary: This paper introduces a correspondence imaging approach for reconstructing high-quality objects through complex scattering media. By deriving a rectified theory and introducing temporal correction, the proposed method eliminates the effect of dynamic scaling factors. Experimental results demonstrate the advantages of the proposed method over conventional methods in complex scattering environments, and it can also be combined with other methods to further enhance the quality of reconstructed objects.
OPTICS AND LASERS IN ENGINEERING
(2024)
Article
Optics
Zengxuan Jiang, Minghao Chao, Qingsong Liu, Bo Cheng, Guofeng Song, Jietao Liu
Summary: In this paper, a multi-focal metalens with high focusing efficiency controlled by circular polarization multiplexing is demonstrated. The metalens can generate four transversely distributed focal points under normal incidence of linearly polarized light, supporting both left-circularly polarized and right-circularly polarized conversion. Furthermore, an oblique incidence metalens is designed to achieve high total focusing efficiency for terahertz waves and provides potential new applications for polarization imaging and detection.
OPTICS AND LASERS IN ENGINEERING
(2024)
Article
Optics
Yiran Wang, Yu Ji, Xuyang Zhou, Xiu Wen, Yutong Li, Zhengjun Liu, Shutian Liu
Summary: This work presents a new reconstruction framework for structured illumination microscopy (SIM), which only requires four raw images and avoids extensive iterative computation. By using checkerboard pattern illumination modulation instead of sinusoidal fringe illumination, the proposed method significantly reduces image acquisition time and achieves higher image reconstruction rate. Additionally, the reconstruction process is non-iterative and not limited by the field of view size.
OPTICS AND LASERS IN ENGINEERING
(2024)
Article
Optics
Qian He, Li Pei, Jianshuai Wang, Jingjing Zheng, Tigang Ning, Jing Li
Summary: This paper proposes a 3D refractive index profile visualization method to demonstrate mode activation and evolution in fiber fusion splicing. The method is validated through experimental results and provides support for various fiber splicing operations and mode coupling modulation.
OPTICS AND LASERS IN ENGINEERING
(2024)
Article
Optics
Qiwei Li, Qiyu Wang, Fang Lu, Yang Cao, Xu Zhao
Summary: LSHIP is a lenslet-array-based snapshot hyperspectral imaging polarimeter that combines spectral polarization modulation with integral field imaging spectrometry. It can simultaneously acquire three-dimensional spatial and spectral data-cubes for linear Stokes parameters in a single snapshot.
OPTICS AND LASERS IN ENGINEERING
(2024)
Article
Optics
Huicong Li, Bing Lv, Meng Tian, Wenzhu Huang, Wentao Zhang
Summary: This study proposes a temperature compensation scheme for unbalanced interferometers using sensing fibers with different temperature coefficients, aiming to resolve the temperature disturbance and achieve high strain resolution. The experimental results confirm the effectiveness of the proposed scheme in high-resolution, long-term, low-frequency, and static strain sensing.
OPTICS AND LASERS IN ENGINEERING
(2024)
Article
Optics
Hongxiang Chang, Rongtao Su, Yuqiu Zhang, Bowang Shu, Jinhu Long, Jinyong Leng, Pu Zhou
Summary: High-speed variable-focus optics provides new opportunities for fiber laser applications in various fields. This paper investigates a non-mechanical axial focus tuning method using coherent beam combining (CBC) technique and proposes a tilt modulation assisted method to extend the tuning range.
OPTICS AND LASERS IN ENGINEERING
(2024)
Article
Optics
Yubo Ni, Shuai Fu, Chaoyang Su, Zhaozong Meng, Nan Gao, Zonghua Zhang
Summary: This paper proposes a surface adaptive fringe pattern generation method to accurately measure specular surfaces, eliminating the out-of-focus effect and improving measurement accuracy and reliability.
OPTICS AND LASERS IN ENGINEERING
(2024)
Article
Optics
Zifan Wang, Tianfeng Zhou, Qian Yu, Zihao Zeng, Xibin Wang, Junjian Hu, Jiyong Zeng
Summary: Fast-axis collimation (FAC) lens arrays are crucial in laser systems, and their precision can be improved through the development of an optical collimation system and the use of thermal compensation to correct for non-uniform thermal expansion.
OPTICS AND LASERS IN ENGINEERING
(2024)
Article
Optics
Jincheng Chen, Qiuyu Fang, Li Huang, Xin Ye, Luhong Jin, Heng Zhang, Yinqian Luo, Min Zhu, Luhao Zhang, Baohua Ji, Xiang Tian, Yingke Xu
Summary: This study developed a novel deep learning accelerated SRRF method that enables super-resolution reconstruction with only 5 low SNR images, and allows real-time visualization of microtubule dynamics and interactions with CCPs.
OPTICS AND LASERS IN ENGINEERING
(2024)
Article
Optics
Pan Liu, Yongqiang Zhao, Ning Li, Kai Feng, Seong G. Kong, Chaolong Tang
Summary: This article presents a technique for inverse design of multilayer deep-etched gratings (MDEG) using a deep neural network with adaptive solution space. The proposed method trains a deep neural network to predict the probability distribution across the discretized space, enabling evaluation of an optimal solution. The results show improved efficiencies using only a reduced dataset and avoiding one-to-many mapping challenges.
OPTICS AND LASERS IN ENGINEERING
(2024)
Article
Optics
Evelina Bibikova, Nazar Al-wassiti, Nataliya Kundikova
Summary: Light beams possess three types of angular momentum, namely spin angular momentum, extrinsic orbital angular momentum, and intrinsic orbital angular momentum. The interaction between these momenta leads to the spin-orbit interaction of light and topological effects. This study predicts a new topological effect resulting from the influence of extrinsic orbital angular momentum on spin angular momentum in converging asymmetrical light beams. It manifests as the transformation of linear polarized light into elliptically polarized light when an asymmetrical beam passes through the left or right half of the focal plane. The measured value of the topological circular amplitude anisotropy R was found to be R = +/- (0.60 +/- 0.08) x 10(-3). This new effect contributes to our understanding of light and has potential applications in developing sensors in optics.
OPTICS AND LASERS IN ENGINEERING
(2024)
Article
Optics
Hamdy H. Wahba
Summary: This study combines multiple-beam Fizeau interference and single-shot digital holographic interferometry to study thick phase objects. By collecting optical phase at different focal planes, the angular spectrum method is used for the first time to retrieve optical phase maps through the focal depth. The proposed method proves to be effective in providing accurate numerical focusing and phase maps reconstruction.
OPTICS AND LASERS IN ENGINEERING
(2024)
Article
Optics
Mohammed A. Isa, Richard Leach, David Branson, Samanta Piano
Summary: Due to the complexity of resolving object form and pose in images, new vision algorithms prioritize identification and perception over accurate coordinate measurement. However, the use of planar targets for coordinate measurement in vision systems has several drawbacks, including calibration difficulties and limited viewing angles. On the other hand, the use of sphere targets is infrequent in vision-based coordinate metrology due to the lack of efficient multi-view vision algorithms for accurate sphere measurements.
OPTICS AND LASERS IN ENGINEERING
(2024)
Article
Optics
Ildar Rakhmatulin, Donald Risbridger, Richard M. Carter, M. J. Daniel Esser, Mustafa Suphi Erden
Summary: This paper reviews the application of machine learning in laser systems. While machine learning has been widely used in general control automation and adjustment tasks, its application in specific tasks requiring skilled workforces for high-precision equipment assembly and adjustment is still limited. The paper presents promising research directions for using machine learning in mirror positional adjustment, triangulation, and optimal laser parameter selection, based on the recommendations of PRISMA.
OPTICS AND LASERS IN ENGINEERING
(2024)
