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题名:
Structured lens formed by a 2D square hole array in a metallic film
作者: Chen, Yanzhong; Zhou, Chongxi; Luo, Xiangang; Du, Chunlei
刊名: OPTICS LETTERS
出版日期: 2008-04-01
卷号: 33, 期号:7, 页码:753-755
文章类型: Article
英文摘要: A method is proposed to modulate phase using variant square holes in a metallic film based on a fundamental mode approximation model. Phase retardation through square holes in a subwavelength scale in a thin metal film has been analyzed and calculated. Based on the model, a structured lens with a numerical aperture of 0.583 and a focal length of 240 mu m formed by a 2D square hole array in a metallic film is designed. Numerical simulation using the finite-difference time-domain method is carried out, and the results agree with the theoretical analysis. A focal spot close to the diffraction limit can be obtained. (C) 2008 Optical Society of America.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Optics
研究领域[WOS]: Optics
关键词[WOS]: EXTRAORDINARY OPTICAL-TRANSMISSION ; SUBWAVELENGTH APERTURE ; LIGHT TRANSMISSION ; SLITS
收录类别: SCI
语种: 英语
WOS记录号: WOS:000255227000040
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3633
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: Chinese Acad Sci, Inst Opt & Elect, State Key Lab Opt Technol Microfabricat, Chengdu 610209, Sichuan, Peoples R China

Recommended Citation:
Chen, Yanzhong,Zhou, Chongxi,Luo, Xiangang,et al. Structured lens formed by a 2D square hole array in a metallic film[J]. OPTICS LETTERS,2008,33(7):753-755.
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