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题名:
A large numerical aperture structured lens formed by varying high-refractive-index-dielectric square holes
作者: Sujuan Chen, Chongxi Zhou, Yuanming Feng, Xingping Wang, Chuankai Qiu
刊名: Journal of Modern Optics
出版日期: 2010
卷号: 57, 期号:7, 页码:570-575
文章类型: 期刊论文
中文摘要: A structured lens with a large numerical aperture for high diffraction efficiency is proposed. This structured lens is formed by varying high-refractive-index-dielectric(HRID) square holes in a metallic film. Compared with previous structured lens is smoother and the diffraction efficiency is greatly impedance mismatching between air and the high refractive index dielectric. A lens with an aperture of 100um and a focal length of 50um was designed;its diffraction efficiency has been raised from 22.8%to 47.2% by the finite difference and time domain(FDTD)algorithm. This structured lens has the advantages of not only light weight and high compactness, ut also large numerical aperture,high diffraction efficiency,and good imaging quality.
英文摘要: A structured lens with a large numerical aperture for high diffraction efficiency is proposed. This structured lens is formed by varying high-refractive-index-dielectric(HRID) square holes in a metallic film. Compared with previous structured lens is smoother and the diffraction efficiency is greatly impedance mismatching between air and the high refractive index dielectric. A lens with an aperture of 100um and a focal length of 50um was designed;its diffraction efficiency has been raised from 22.8%to 47.2% by the finite difference and time domain(FDTD)algorithm. This structured lens has the advantages of not only light weight and high compactness, ut also large numerical aperture,high diffraction efficiency,and good imaging quality.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/6710
Appears in Collections:微细加工光学技术国家重点实验室(开放室)_期刊论文

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作者单位: 中国科学院光电技术研究所

Recommended Citation:
Sujuan Chen, Chongxi Zhou, Yuanming Feng, Xingping Wang, Chuankai Qiu. A large numerical aperture structured lens formed by varying high-refractive-index-dielectric square holes[J]. Journal of Modern Optics,2010,57(7):570-575.
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