中国科学院机构知识库网格
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Piecewise Linear Weighted Iterative Algorithm for Beam Alignment in Scanning Beam Interference Lithography 期刊论文  OAI收割
Photonic Sensors, 2019, 卷号: 9, 期号: 4, 页码: 344-355
作者:  
Y.Song;  Bayanheshig;  S.Li;  S.Jiang;  W.Wang
  |  收藏  |  浏览/下载:31/0  |  提交时间:2020/08/24
SGⅡ升级装置主放CSF远场自动准直关键技术研究 学位论文  OAI收割
工学硕士, 中国科学院自动化研究所: 中国科学院大学, 2015
作者:  
刘代金
收藏  |  浏览/下载:60/0  |  提交时间:2015/09/02
Research on 10.6 m laser beam monitoring in CO2 laser processing system (EI CONFERENCE) 会议论文  OAI收割
Infrared Materials, Devices, and Applications, November 12, 2007 - November 15, 2007, Beijing, China
作者:  
Gao Y.;  Shao S.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25
It is a key point of CO2 laser beam monitoring in the CO 2 laser processing system to achieve alignment between CO2 laser and PL (pointing and launching) system. By monitoring the angle offset of CO2 laser beam  the compensation can be gotten witch is given to fast-steering mirror to rectify the direction of laser beam. But the normal photoelectric detector can not get the laser signal because of CO2 laser's high energy and long wavelength. Its wavelength is 10.6m and its power can reach kW level. Consequently  it is difficult to detect the high-energy 10.6m laser beam directly. So  we monitored the output mirror of laser resonator superseded the laser beam  indirectly. The laser beam monitoring system could be designed based on CCD laser auto-collimation angular measurement principle and image processing method. In this paper  application of CCD laser auto-collimation angular measurement principle and image processing method for CO2 laser beam monitoring system is introduced particularly  After design  fabrication and alignment  the monitoring system can be used for experimental study that including angular measurement accuracy and angle offset measurement of CO2 laser beam. Angle offset range and angle variation rule of CO2 laser beam is also can be acquired for further research.  
Development of an experimental EUVL system (EI CONFERENCE) 会议论文  OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems, July 8, 2007 - July 12, 2007, Chengdu, China
作者:  
Wang L.-P.;  Zhang L.-C.;  Jin C.-S.
收藏  |  浏览/下载:19/0  |  提交时间:2013/03/25
Key techniques of laser direct writing patterns on spherical substrate (EI CONFERENCE) 会议论文  OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems, July 8, 2007 - July 12, 2007, Chengdu, China
作者:  
Zhao J.-L.;  Feng X.-G.
收藏  |  浏览/下载:24/0  |  提交时间:2013/03/25
Comparing with the writing method of plane pattern  spherical pattern' has some remarkable different on several points. Firstly  it is difficult to spin-coated a uniform photoresist film on a spherical substrate  especially the ratio of spherical radius to caliber is smaller  and the spin-coated way must match the ratio of spherical radius to caliber. Secondly  if the sphere couldn't be regarded as a plane  a so-called concentric optical scan movement way must be applied for the generation of spherical pattern  because the reflex of substrate will affect the quantity of illumination. Commonly  an alignment technique is indispensable with pattern generation of spherical surface by the concentric optical scan in order to ensure the orthogonal intersection of focusing laser beam and writing surface. Thirdly  a uniform velocity control must be considered for the laser direct writing method on a spherical substrate. Otherwise  the exposure time of photoresist will be different  and the line widths of pattern will be also different at different areas. Fourthly  commonly  because the errors of concentric machine and substrate surface shape are bigger  so focusing servo-control technique is also needful for writing a pattern on a spherical substrate. Focusing servo-control may keep the focal spot on the spherical surface by a focus detection and control system in the course of writing pattern. Using these techniques  we fabricated a line width of 7m and a period of 600m isometric mesh on the concave of a spherical substrate.  
基于远近光场耦合测量的超短超强激光束靶耦合技术 学位论文  OAI收割
作者:  
杨野
  |  收藏  |  浏览/下载:34/0  |  提交时间:2018/12/26