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	Retrieving Wave Parameters From GNSS Buoy Measurements Using the PPP Mode 期刊论文 OAI收割 IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, 2022, 卷号: 19, 页码: 5 作者: Zhu, Lin; Yang, Lei; Xu, Yongsheng; Yang, Fanlin; Zhou, Xinghua \| 收藏 \| 浏览/下载：27/0 \| 提交时间：2022/04/12 Global navigation satellite system Sea measurements Satellites Optical interferometry Optical imaging Time series analysis Sea surface Global Navigation Satellite System (GNSS) buoy postprocessed kinematic (PPK) precise point positioning (PPP) significant wave height (SWH) wave parameters
	Iterative surface construction for blind deflectometry 期刊论文 OAI收割 Proceedings of SPIE: 8th International Symposium on Advanced Optical Manufacturing and Testing Technology: Optical Test, Measurement Technology, and Equipment, 2016, 卷号: 9684, 页码: 96843X 作者: Zhao, Wenchuan; Graves, Logan R.; Huang, Run; Song, Weihong; Kim, Daewook \| 收藏 \| 浏览/下载：25/0 \| 提交时间：2018/06/14 Data Handling Iterative Methods Manufacture Measurements Optical Testing Surface Measurement
	Approaching sub-50 nanoradian measurements by reducing the saw-tooth deviation of the autocollimator in the Nano-Optic-Measuring Machine 期刊论文 OAI收割 NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2015, 卷号: 785, 页码: 206-212 作者: Qian, SN; Geckeler, RD; Just, A; Idir, M; Wu, XH 收藏 \| 浏览/下载：19/0 \| 提交时间：2016/04/18 Nano-accuracy metrology Optical surface measurements Figure Synchrotron radiation
	Imaging system effects on the measuring accuracy of the optical surface in interferometer (EI CONFERENCE) 会议论文 OAI收割 3rd International Conference on Measuring Technology and Mechatronics Automation, ICMTMA 2011, January 6, 2011 - January 7, 2011, Shanghai, China Yang W.; Liu M.; Xu W. 收藏 \| 浏览/下载：24/0 \| 提交时间：2013/03/25 In order to measure high accuracy or mid spatial frequency optical surfaces this study investigated imaging system in Fizeau interferometer. Interferometer is a transferring phase information system. General transfer function can't evaluate the ability of imaging system in interferometer that transfers the phase information of the optical surface. So this paper deduced instrument transfer function (ITF) and used ITF to evaluate the phase information transfer ability of interferometer. We obtained some results about ITF of imaging system by numerical simulation when there are different aberrations in imaging system or measuring optical surfaces were different. Our results indicate that ITF can evaluate the ability of transferring phase information in interferometer and the distortion of imaging system evidently affects the accuracy of interferometric measurements. 2010 IEEE.
	Fabrication of high-efficiency ultraviolet blazed gratings by use of direct Ar2-CHF3 ion-beam etching through a rectangular photoresist mask (EI CONFERENCE) 会议论文 OAI收割 International Symposium on Photoelectronic Detection and Imaging 2011: Sensor and Micromachined Optical Device Technologies, May 24, 2011 - May 26, 2011, Beijing, China Tan X. 收藏 \| 浏览/下载：25/0 \| 提交时间：2013/03/25 In ultraviolet spectroscopy groove irregularity and surface roughness of nanometer magnitude can cause a significant loss of diffraction efficiency. Therefore there is a constant need to improve the diffraction efficiency. A blazed grating can concentrate most of the light intensity into a desired diffraction order it is important to control the groove shape precisely so it is the optimum choice among gratings of different kinds of profile. As the operating wavelength of most UV spectral applications is less than 200 nm especially the blaze angle and the apical angle. We have presented a direct shaping method to fabricate EUV blazed gratings by using an ion-beam mixture of Ar+ and CHF2 +to etch K9 glass with a rectangular photoresist mask. With this method the required blaze angle is small we have succeeded in fabricating well-shaped UV blazed gratings with a 1200 line/mm groove density and 8.54 blaze angles and 1200 line/mm groove density and 11.68 blaze angles and the metrical efficiency is about 81% and 78%. The good performance of the gratings was verified by diffraction efficiency measurements. When one uses the etching model the conditions on the ion-beam grazing incident angle and the CHF3partial pressure should be noted. Besides since the etched groove shape depends on the aspect ratio of the photoresist mask ridge if we wish to fabricate larger gratings with this method we must improve the uniformity of the photoresist mask before ion-beam etching. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
	Growth and characterization of Bi(2)Se(3) thin films by pulsed laser deposition using alloy target 期刊论文 OAI收割 Thin Solid Films, 2011, 卷号: 519, 期号: 22, 页码: 7627-7631 L. J. Meng; H. Meng; W. J. Gong; W. Liu; Z. D. Zhang 收藏 \| 浏览/下载：16/0 \| 提交时间：2012/04/13 Pulsed laser deposition Thin films Bismuth selenide X-ray diffraction Electrical properties and measurements Surface morphology Scanning electron microscopy Crystal microstructure optical-properties electrodeposition photoemission
	Fabrication and testing 600mm diameter brazing SiC mirror (EI CONFERENCE) 会议论文 OAI收割 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, November 19, 2008 - November 21, 2008, Chengdu, China 作者: Wang X.; Zhang X.-J.; Zhang Z.-Y.; Zhang Z.-Y.; Wang X. 收藏 \| 浏览/下载：21/0 \| 提交时间：2013/03/25 SiC is a preferential material for space large aperture mirror at present. Aperture of 1 meter sic mirror can meet most requirements of space optical systems. For larger aperture sic mirror it is not economical and safe to make the monolithic body directly. The SiC mirror brazed assembly with several segments can solve these problems. In this paper one 600 mm sic plane mirror as demonstration welded with 3 radial segments is roughly grinded to the required figure at first then the mirror is finely grinded and polished by CCOS technology the RMS of the figure error is less than 1/20 ( = 632.8nm) finally. The problems of the preferential removal near braze joint and material removing rate influenced by deformation of mirror surface are solved. Methods of reducing the residual stress of mirror are discussed. At last some measurements and experiments are carried on and the results conclude that the brazed SiC mirror can meet the requirement of large aperture optical systems. 2009 SPIE.