ABERRATIONS

作品数:119被引量:315H指数:9
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Influence and Correction of Wavefront Primary Aberrations for Radio Telescopes using Aberration Theory
《Research in Astronomy and Astrophysics》2023年第2期187-196,共10页Bin-bin Xiang Wei Wang You Ban Shang-min Lin Zhi-gang Wen Da-lin He Ming-hui Cai 
supported by the National Natural Science Foundation of China(NSFC,Grant No.U1931137);the National Key Basic Research Program of China(2018YFA0404702)。
Dual-reflector antennas are widely used in astronomical observations and satellite communication.Structural deformations of the reflectors for radio telescopes are inevitable in outside working conditions due to exter...
关键词:telescopes-methods analytical-instrumentation MISCELLANEOUS 
Aberration-free two-thin-lens systems based on negative-index materials
《Chinese Physics B》2008年第3期954-959,共6页林志立 丁婕深 张朴 
Project partially supported by the National Basic Research Program of China(Grant No2004CB719802);an additional support from the Science and Technology Department of Zhejiang Province,China
Since the complete correction of all five monochromatic Seidel aberrations for a singlet lens with random shape or a two-thin-lens system is unprocurable merely by using the conventional positive-index materials both ...
关键词:negative refraction negative-index materials Seidel aberrations thin lens 
Study on the approximative formula for the far-field of a Gaussian beam under circular aperture diffraction and its divergence
《Chinese Optics Letters》2007年第1期4-7,共4页刘宏展 粱瑞生 黄旭光 
This work was supported by the National "973" Program of China under Grant No. 2007CB307000 and 2007CB307001.
The approximative formula for the far-field diffraction of a Gaussian beam through a circular aperture is obtained by using the superposition of Gaussian beams instead of the aperture function, and the explicit expres...
关键词:ABERRATIONS Calculations Electromagnetic wave diffraction Transmitters WAVEFRONTS 
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