光:先进制造(英文) Pub Date : 2023-05-13 DOI: 10.37188/lam.2023.030

Chaojiong Wei, Youren Yu, Ziyun Wang, Lin Jiang, Z. Zeng, Jia Ye, X. Zou, W. Pan, Xiaojun Xie, Lian-shan Yan

引用次数: 0

Quantitative phase imaging (QPI) through random diffusers using a diffractive optical network 利用衍射光网络通过随机扩散器进行定量相位成像

光:先进制造(英文) Pub Date : 2023-01-19 DOI: 10.37188/lam.2023.017

Yuhang Li, Yilin Luo, Deniz Mengu, Bijie Bai, Aydogan Ozcan

{"title":"Quantitative phase imaging (QPI) through random diffusers using a diffractive optical network","authors":"Yuhang Li, Yilin Luo, Deniz Mengu, Bijie Bai, Aydogan Ozcan","doi":"10.37188/lam.2023.017","DOIUrl":"https://doi.org/10.37188/lam.2023.017","url":null,"abstract":"Quantitative phase imaging (QPI) is a label-free computational imaging technique used in various fields, including biology and medical research. Modern QPI systems typically rely on digital processing using iterative algorithms for phase retrieval and image reconstruction. Here, we report a diffractive optical network trained to convert the phase information of input objects positioned behind random diffusers into intensity variations at the output plane, all-optically performing phase recovery and quantitative imaging of phase objects completely hidden by unknown, random phase diffusers. This QPI diffractive network is composed of successive diffractive layers, axially spanning in total ~70 wavelengths; unlike existing digital image reconstruction and phase retrieval methods, it forms an all-optical processor that does not require external power beyond the illumination beam to complete its QPI reconstruction at the speed of light propagation. This all-optical diffractive processor can provide a low-power, high frame rate and compact alternative for quantitative imaging of phase objects through random, unknown diffusers and can operate at different parts of the electromagnetic spectrum for various applications in biomedical imaging and sensing. The presented QPI diffractive designs can be integrated onto the active area of standard CCD/CMOS-based image sensors to convert an existing optical microscope into a diffractive QPI microscope, performing phase recovery and image reconstruction on a chip through light diffraction within passive structured layers.","PeriodicalId":56519,"journal":{"name":"光:先进制造(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47590961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Research on key technology of compound polishing of off-axis parabolic mirror 离轴抛物面镜复合抛光关键技术研究

光:先进制造(英文) Pub Date : 2023-01-09 DOI: 10.1117/12.2655107

deqing zhu, CHuYi Fan, JianGuo Fang, Guo Xiaoyue, Li Yang

{"title":"Research on key technology of compound polishing of off-axis parabolic mirror","authors":"deqing zhu, CHuYi Fan, JianGuo Fang, Guo Xiaoyue, Li Yang","doi":"10.1117/12.2655107","DOIUrl":"https://doi.org/10.1117/12.2655107","url":null,"abstract":"Off-axis aspherical surface have the advantages of excellent optical performance and simplified system structure. In order to satisfy the requirements of high-precision off-axis aspheric mirror in the telescopic system of some equipment, the research on ultra-precision manufacturing technology of off-axis aspheric mirror is carried out, and a composite polishing and detection technology based on robot-controlled optical surfacing and ion beam figuring is proposed. In the processing stage, the robotic flexible polishing and gadget polishing are used to quickly grind and polish the aspheric surface, and then the pitch lap is used to smooth the mid-spatial-frequency errors. Finally the aspheric surface is machined to the final requirement by ion beam figuring. In the detection stage, the coordinate measuring machine is used to detect the surface shape in the grinding stage, and the stigmatic null test is used to detect the aspheric shape in the fine polishing stage. Using the proposed method, the off-axis aspheric surface of a caliber 408mm is machined and tested, and the final surface figure error was 0.015 λ (λ = 632.8nm), which meets the requirements of the index.","PeriodicalId":56519,"journal":{"name":"光:先进制造(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135014768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Precision polishing of the mandrel for x-ray grazing incidence mirrors in the Einstein probe 爱因斯坦探测器x射线掠入射镜芯轴的精密抛光

光:先进制造(英文) Pub Date : 2023-01-09 DOI: 10.1117/12.2656669

Jiadai Xue, Qiuyan Liao, Yutao Liu, Yangong Wu, Yuan Jin, Kaiji Wu, Duo Li, Zheng Qiao, Fei Ding, Yanji Yang, Bo Wang

{"title":"Precision polishing of the mandrel for x-ray grazing incidence mirrors in the Einstein probe","authors":"Jiadai Xue, Qiuyan Liao, Yutao Liu, Yangong Wu, Yuan Jin, Kaiji Wu, Duo Li, Zheng Qiao, Fei Ding, Yanji Yang, Bo Wang","doi":"10.1117/12.2656669","DOIUrl":"https://doi.org/10.1117/12.2656669","url":null,"abstract":"Based on chemical-mechanical polishing and combining mechanical and tribochemical polishing techniques, a precision lapping method suitable for parabolic polishing specified by grazing incident X-rays is introduced. Various factors affecting the polishing process are analyzed, and the results show that the proposed method is consistent with Preston's equation and Hertz contact principle. Therefore, this paper proposes a general material removal model based on the above two methods. The mid and high-spatial frequency errors are demanded to reach the requirements with an angular resolution consistently < 6 arcsec HEW and a roughness of 0.3 nm rms (between 1 mm and 0.002 mm spatial frequency range). To achieve the conformal ultra-smooth polishing of focusing mirrors, the process of full-aperture super-smooth pitch polishing is investigated. The influences of key polishing parameters are revealed. The evolution of the surface topology has been studied. A polishing setup is established to carry out experimental polishing to verify the optimum processing parameters obtained by simulations and previous polishing tests. Besides, the effect of abrasive particle size on the roughness is also verified. The roughness of the polished mandrel is measured at different positions, and the optimum roughness reaches Ra 0.359 nm. The polishing approach can significantly reduce the surface roughness of the replication mandrel, satisfying the low energy band focusing requirement of grazing incidence X-ray mirrors.","PeriodicalId":56519,"journal":{"name":"光:先进制造(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135014769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Front Matter: Volume 12507 封面:卷12507

光:先进制造(英文) Pub Date : 2023-01-09 DOI: 10.1117/12.2669890

引用次数: 0

Holographic laser fabrication of 3D artificial compound μ-eyes 三维人工复合μ眼的全息激光制备

光:先进制造(英文) Pub Date : 2023-01-01 DOI: 10.37188/lam.2023.026

Lei Wang, W. Gong, Xiao-wen Cao, Yanhao Yu, S. Juodkazis, Qidai Chen

{"title":"Holographic laser fabrication of 3D artificial compound μ-eyes","authors":"Lei Wang, W. Gong, Xiao-wen Cao, Yanhao Yu, S. Juodkazis, Qidai Chen","doi":"10.37188/lam.2023.026","DOIUrl":"https://doi.org/10.37188/lam.2023.026","url":null,"abstract":"The demand for fast optical image acquisition without movable optical elements (e.g., for self-driving car technology) can be met using bioinspired 3D compound eyes. 3D laser processing strategies enable designable 3D structuring but suffer from low fabrication efficiency, which significantly limits their applications in producing complex 3D optical devices. Herein, we demonstrate a versatile yet simple wet-etching-assisted holographic laser fabrication method for the development of 3D compound eyes. Artificial compound μ eyes can be readily fabricated by programming a 3D spot array for the parallel ablation of a curved fused silica surface, followed by controllable etching in a hydrofluoric (HF) acid solution. A 3D-concave-lens array made on a curved surface over an area of 100 μ m cross-section with each lenslet of 10 μ m radius was fabricated with high fidelity and excellent imaging/focusing quality. The resultant 3D-concave-lens can serve as a hard template for the mass production of soft compound eyes through soft lithography. Additionally, using a generative adversarial network (GAN)-based deep learning algorithm, image restoration was conducted for each lenslet, which retained a large field of view and significantly improved image quality. This method provides a simple solution to the requirements of compound μ -eyes required by Industry 4.0.","PeriodicalId":56519,"journal":{"name":"光:先进制造(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69983868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultra-compact lithium niobate photonic chip for high-capacity and energy-efficient wavelength-division-multiplexing transmitters 用于高容量高能效波分复用发射机的超紧凑铌酸锂光子芯片

光:先进制造(英文) Pub Date : 2023-01-01 DOI: 10.37188/lam.2023.013

Hongxuan Liu, Bingcheng Pan, Yishu Huang, Jianghao He, Ming Zhang, Zejie Yu, Liu Liu, Yaocheng Shi, D. Dai

引用次数: 2

Single-end hybrid Rayleigh Brillouin and Raman distributed fibre-optic sensing system 单端混合瑞利-布里渊-拉曼分布式光纤传感系统

光:先进制造(英文) Pub Date : 2023-01-01 DOI: 10.37188/lam.2023.016

Linjing Huang, Xinyu Fan, H. He, Lian-shan Yan, Zuyuan He

引用次数: 1

Two-photon photopolymerization directly initiated by spiropyran photochromic molecules 由螺吡喃光致变色分子直接引发的双光子光聚合

光:先进制造(英文) Pub Date : 2023-01-01 DOI: 10.37188/lam.2023.004

Dandan Ge, J. Aubard, Erell Bodinier, S. Jradi, S. Lau-Truong, N. Félidj, R. Bachelot, A. Baudrion