An optical design for dual-band infrared diffractive telescope
一种红外双波段衍射望远镜的光学设计
查看参考文献10篇
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文摘
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In this paper,the double-layer harmonic diffractive element (HDE)structure is investigated and the optimization procedure is based on the equation of diffraction efficiency of the double-layer diffractive optical element.The diffraction efficiency of the system in the designed middle and far infrared wavebands is larger than 99%,which improves the image contrast and the imagequality significantly.A new dual-band infrared double-layer HDE telescope is designed,which can work in the middle and far infrared wavebands.It is shown that the system approximately attains diffraction limit and is easy to processed. |
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其他语种文摘
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深入研究了双层谐衍射光学元件,基于衍射效率方程对双层衍射元件的衍射效率进行优化.光学系统在中波红外和长波红外波段的衍射效率均超过了99%,极大地提高了图像的对比度和像质.设计了一款新型的红外双波段衍射望远镜,取得了接近衍射极限的成像质量,易于加工. |
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来源
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红外与毫米波学报
,2019,38(1):39-43 【核心库】
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DOI
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10.11972/j.issn.1001-9014.2019.01.007
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关键词
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diffraction efficiency
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HDE
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optical design
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地址
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1.
Xi'an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences, State Key Laboratory of Transient Optics and Photonics, Xi'an, 710119
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University of Chinese Academy of Sciences, Beijing, 100049
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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1001-9014 |
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学科
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物理学 |
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基金
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Supported by Nationa Natural Science Foundation of China
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文献收藏号
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CSCD:6433019
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