GRATING

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New Encoder Based on Grating Eddy-Current with Differential Structure
《Journal of Shanghai Jiaotong university(Science)》2025年第2期337-351,共15页ZHANG Zaigi LüNa TAO Wei ZHAO Hui 
the Biomedical Science and Technology Support Special Project of Shanghai Science and Technology Committee(No.20S31908300)。
In response to the shortcomings of the common encoders in the industry,of which the photoelectric encoders have a poor anti-interference ability in harsh industrial environments with water,oil,dust,or strong vibration...
关键词：ENCODER grating eddy-current differential structure angle measurement 
Design, Fabrication and Performance Evaluation of a Multipurpose Cassava Grater
《World Journal of Engineering and Technology》2025年第1期49-63,共15页Bruno Robert Mose Victoria Achieng’ Odhiambo Nafula Maryvelma Benard Ouma Alunda 
Food security has been an issue of global concern and this has attracted a lot of research interest. Cassava is an extremely popular crop and is becoming the cornerstone for addressing food security in many parts of t...
关键词：Food Security Physiological Deterioration Tooth Angle Grating Efficiency 
Grating pitch comparison measurement based on Cr atomic transition frequency and Si lattice constant
《Chinese Physics B》2025年第2期82-88,共7页Jingtong Feng Rao Xu Ziruo Wu Lihua Lei Yingfan Xiong Zhaohui Tang Guangxu Xiao Yuying Xie Dongbai Xue Xiao Deng Xinbin Cheng Tongbao Li 
Project supported by the National Natural Science Foundation of China (Grant Nos. 61925504 and 52475563);the National Key Research and Development Program of China (Grant Nos. 2022YFF0607600 and 2022YFF0605502);Key Laboratory of Metrology and Calibration Technology Fund Project (Grant No. JLKG2023001B001);Aeronautical Science Foundation Project (Grant No. 20230056038001)。
Traceability is the fundamental premise of all metrological activities. The establishment of a traceability chain characterized by a shortened structure, while simultaneously enabling on-site traceability, represents ...
关键词：NANOMETROLOGY self-traceable standard material Si lattice constant 
Polarization-encoded neural networks with simplified grating patch
《Science China(Technological Sciences)》2025年第2期269-277,共9页Chengyan ZHONG Xiang WANG Lingfei LI Yuanchi CUI Lei XIAO Dawei SONG Junxiong GUO Wen HUANG Yufeng GUO Yu LIU 
supported in part by the National Natural Science Foundation of China(Grant Nos.62371095,62201096,62401276);by the Natural Science Research Start-up Foundation of Recruiting Talents of Nanjing University of Posts and Telecommunications(Grant No.NY223161);in part by the Jiangsu Provincial Key Research and Development Program(Grant No.BE2022126);the Key R&D Program of Sichuan Province(Grant No.2022ZHCG0041);the National Key Research and Development Program of China(Grant No.2022YFB3206100);the Natural Science Foundation of Sichuan Province(Grant No.2024NSFSC0509);the China Postdoctoral Science Foundation(Grant Nos.2024T170097,2024M760343).
Optical neural networks(ONNs)offer a promising solution for high-performance,energy-efficient artificial intelligence hardware by leveraging the parallelism and speed of light.However,the large-scale implementation of...
关键词：optical neural networks polarization dependent nanophotonic ultra-compact devices diffraction limit 
A tactile perception method with flexible grating structural color
《National Science Review》2025年第1期223-236,共14页Yuze Qiu Chunfei Yan Yan Zhang Shengxuan Yang Xiang Yao Fawen Ai Jinjin Zheng Shiwu Zhang Xinge Yu Erbao Dong 
supported by the National Natural Science Foun-dation of China(61773358);Research Grants Council of the Hong Kong Special Administrative Region(RFS2324-1S03).
Affordable high-resolution cameras and state-of-the-art computer vision techniques have led to the emergence of various vision-based tactile sensors.However,current vision-based tactile sensors mainly depend on geomet...
关键词：force and tactile sensing structural color vision-based tactile sensor deep learning wave optics 
Mode-selective edge coupler with cladding grating for a lithium-niobate-on-insulator waveguide
《Chinese Optics Letters》2025年第1期140-144,共5页Pengfei Fan Xiaotian Zhang Chi Zhang Shanshan Cheng Xiao-Hui Tian Kunpeng Jia Hua-Ying Liu Shining Zhu Zhenda Xie 
supported by the National Key R&D Program of China(Nos.2022YFA1205100 and 2019YFA0705000);the National Natural Science Foundation of China(Nos.62293523,12304421,and 62305156);the Jiangsu Natural Science Foundation(No.BK20232033);the Leading-edge Technology Program of Jiangsu Natural Science Foundation(No.BK20192001);the Zhangjiang Laboratory(No.ZJSP21A001);the Jiangsu Funding Program for Excellent Postdoctoral Talent。
Lithium-niobate-on-insulator(LNOI)chips have shown outstanding performance in various photonic devices including modulators,lasers,nonlinear converters,and quantum sources.LNOI-based edge couplers are quite important ...
关键词：lithium-niobate-on-insulator chip edge coupler mode selectivity 
Large-scale dispersion compensation with a TM-type chirped multimode waveguide grating
《Chinese Optics Letters》2024年第12期51-56,共6页Shujun Liu Ruitao Ma Weike Zhao Zejie Yu Daoxin Dai 
supported by the National Key Research and Development Program of China(No.2022YFB2803800);the National Natural Science Foundation of China(Nos.91950205,92150302,and 62205292);the Natural Science Foundation of Zhejiang Province(No.LDT23F04012F05);the Zhejiang Provincial Major Research and Development Program(No.2021C01199);the Leading Innovative and Entrepreneur Team Introduction Program of Zhejiang(No.2021R01001)。
Chirped Bragg grating is a powerful dispersion compensator.It has the advantages of a broad working bandwidth,a simple structure,and a compact footprint.However,previously reported integrated silicon chirped Bragg gra...
关键词：silicon dispersion compensation multimode waveguide grating spiral grating 
Dependence of the focal intensity of a femtosecond laser pulse on the non-flatness of compressor diffraction gratings
《High Power Laser Science and Engineering》2024年第6期144-155,共12页Efim Khazanov 
supported by the Ministry of Science and Higher Education of the Russian Federation(075-15-2022-316,Center of Excellence‘Center of Photonics’)
An analytical expression for the focal intensity of a laser pulse was obtained for an asymmetric out-of-plane compressor with gratings of arbitrary surface shape. The focal intensity is most strongly affected by the l...
关键词：four-grating compressor grating surface profile petawatt lasers space-time coupling 
Generation of multi-watt sub-50 fs pulses in Mamyshev oscillators:influence of the central wavelength in the grating filter
《High Power Laser Science and Engineering》2024年第6期130-137,共8页Feihong Qiao Jinbo Wang Xinhe Dou Xiang Li Bole Song Zhiguo Lv 
supported by the National Natural Science Foundation of China (NSFC) (No.12164030);Young Science and Technology Talents of Inner Mongolia (No.NJYT22101);Central Government Guides Local Science and Technology Development Fund (No.2023ZY0005)
Mamyshev oscillators (MOs) exhibit the potential for generating high average power and ultrashort pulses. Herein,we construct an MO using flexible double-cladding ytterbium-fiber with a fusion-spliced-combiner pumped ...
关键词：BLUE-SHIFT high average power ultrashort pulses 
Improved method to optimize the phase jump of multiple exposure-tiled gratings
《High Power Laser Science and Engineering》2024年第6期80-86,共7页Xinhui Ding Hui Yu Dawei Li Junyong Zhang Li Wang Qiong Zhou Xingqiang Lu 
supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDA25020104)
Large-aperture gratings have significant applications in inertial confinement fusion, immersion lithography manufacturing and astronomical observation. Currently, it is challenging and expensive to manufacture sizable...
关键词：large-aperture grating tiled grating phase distribution rigorous coupled-wave analysis 
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