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• 国家空间科学中心 [3]
• 西安光学精密机械研究... [3]
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• OAI收割 [21]
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• 微波遥感 [2]
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浏览/检索结果: 共22条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Research of laser atmospheric propagation of large-aperture antenna measurement 会议论文  OAI收割 Xi'an, China, 2023-10-18 作者:  Zhang, Xuan;  Gao, Ming;  Wang, Hu;  Lin, Shangmin;  Jin, Yu   |  收藏  |  浏览/下载：15/0  |  提交时间：2024/07/03 large-aperture antenna  laser atmospheric propagation  atmospheric turbulence  atmosphere refractive index  laser beam deflection   Beam–beam effects and mitigation in a future proton–proton collider 期刊论文  OAI收割 NUCLEAR SCIENCE AND TECHNIQUES, NUCLEAR SCIENCE AND TECHNIQUES, 2022, 2022, 卷号: 33, 33, 期号: 10, 页码: 130, 130 作者:  Wang, Li-Jiao;  Sen, Tanaji;  Tang, Jing-Yu;  Zhang, Lin-Hao   |  收藏  |  浏览/下载：20/0  |  提交时间：2023/11/10 Particle collider  Particle collider  Beam-beam effects  Luminosity  Tune footprint  Dynamic aperture  effect, beam-beam  beam, width  interaction, long-range  current, wire  current, electric  beam, stability  p p, scattering  cavity, rotation  crossing  longitudinal  transverse  TeV  electron positron  CEPC  quality  hadron  Beam-beam effects  Luminosity  Tune footprint  Dynamic aperture  effect, beam-beam  beam, width  interaction, long-range  current, wire  current, electric  beam, stability  p p, scattering  cavity, rotation  crossing  longitudinal  transverse  TeV  electron positron  CEPC  quality  hadron   Method to enhance the single mode fiber coupling efficiency for obscured receiver by beam shaping 期刊论文  OAI收割 Physica Scripta, 2020, 卷号: 95, 期号: 3 作者:  Rui, Daoman;  Liu, Chao;  Chen, Mo;  Lan, Bin;  Xian, Hao   |  收藏  |  浏览/下载：14/0  |  提交时间：2021/05/11 aperture obstruction  single-mode fiber  coupling efficiency  beam shaping   DUAL FREQUENCY POLARIZED SCATTEROMETER FOR GLOBAL SNOW OBSERVATION 会议论文  OAI收割 36th IEEE International Geoscience and Remote Sensing Symposium (IGARSS), Beijing, PEOPLES R CHINA, JUL 10-15, 2016 作者:  Zhu, Di;  Dong, Xiaolong;  Yun, Risheng;  Xu, Xingou;  Liu, Liling 收藏  |  浏览/下载：25/0  |  提交时间：2017/04/07 scatterometer  pencil beam  snow water equivalent  super resolution reconstruction  unfocused synthetic aperture   Fraunhofer diffraction of Laguerre-Gaussian beam caused by a dynamic superposed dual-triangular aperture 期刊论文  OAI收割 optical engineering, 2015, 卷号: 54, 期号: 12, 页码: 123113 作者:  Li, Xinzhong;  Tai, Yuping;  Nie, Zhaogang;  Wang, Hui;  Li, Hehe 收藏  |  浏览/下载：39/0  |  提交时间：2016/01/25 diffraction  optical vortices  Laguerre-Gaussian beam  dynamic aperture   Experiments and Perturbative Analysis of Dammann-Grating-Based Aperture Filling in a Passive Coherent Beam Combination 期刊论文  OAI收割 j. lightwave technol., 2014, 卷号: 32, 期号: 12, 页码: 2220 作者:  Liu, Houkang;  He, Bing;  Zhou, Jun;  Yang, Yifeng;  Zheng, Ye 收藏  |  浏览/下载：17/0  |  提交时间：2016/11/28 Aperture filling  coherent beam combination  Dammann grating  fiber lasers   Experiments and Perturbative Analysis of Dammann-Grating-Based Aperture Filling in a Passive Coherent Beam Combination 期刊论文  OAI收割 j. lightwave technol., 2014, 卷号: 32, 期号: 12, 页码: 2220 作者:  Liu, Houkang 收藏  |  浏览/下载：15/0  |  提交时间：2016/11/28 Aperture filling  coherent beam combination  Dammann grating  fiber lasers   A COMBINED L-BAND SYNTHETIC APERTURE RADIOMETER AND FAN-BEAM SCATTEROMETER FOR SOIL MOISTURE AND OCEAN SALINITY MEASUREMENT 会议论文  OAI收割 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), Munich, GERMANY, JUL 22-27, 2012 作者:  Liu, Hao;  Zhang, Xiangkun;  Niu, Lijie;  Zhao, Xin;  Zhang, Cheng 收藏  |  浏览/下载：42/0  |  提交时间：2014/12/15 combined active and passive sensor  synthetic aperture radiometer  digital beam forming scatterometer  L-band   Simulation of a collimated Gaussian-beam propagating through an atmospheric turbulence (EI CONFERENCE) 会议论文  OAI收割 2011 International Conference on Electronics and Optoelectronics, ICEOE 2011, July 29, 2011 - July 31, 2011, Dalian, China 作者:  Zhang L.;  Zhang L. 收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25 A Split-step method based on scalar Fresnel diffraction theory is used to emulate a collimated Gaussian-beam propagating through the Kolmogorov turbulent atmosphere in this paper. We acquire the distribution of irradiance and phase on the receiver aperture through choosing accurate simulation parameters. At last  the accuracy of simulation is verified through comparing the coherence factor of simulated beam field with that of theoretical field. 2011 IEEE.   Surface modification of SiC mirror by IARE method (EI CONFERENCE) 会议论文  OAI收割 7th International Conference on Thin Film Physics and Applications, September 24, 2010 - September 27, 2010, Shanghai, China 作者:  Gao J. 收藏  |  浏览/下载：26/0  |  提交时间：2013/03/25 A method to prepare high quality SiC coating at low temperature using large aperture E-beam evaporation PVD equipment with ion assistance was developed for the surface modification of SiC mirror for space projects. This method was called Ion Assisted Reactive Evaporation (IARE). The modified SiC coating was prepared using CH4 and Si with Kaufman ion source by IARE at 300C and it had met the requirements of applications. The SiC coating prepared by this method was amorphous. It was dense  homogeneous and easy to be polished. The surface modification of a SiC mirror was carried out using SiC coating by this method and achieved a fine surface modification effect. The surface roughness (rms) of the SiC substrate was reduced to 0.862nm  the scattering coefficient was reduced to 2.79% and the reflectance coated with Ag film was improved simultaneously after the surface modification. The effect of surface modification using SiC coating was close to that of using Si coating. It can be drawn that this technological method to preparation SiC coating for the surface modification of SiC mirror is reasonable and effective. 2011 SPIE.