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题名:
Broadband super-resolution imaging by a superlens with unmatched dielectric medium
作者: Xuefeng Yang; Yao Liu; Junxian Ma; Jianhua Cui; Hui Xing; Wei Wang
刊名: OPTICS EXPRESS
出版日期: 2009
卷号: 16, 期号:24, 页码:19686-19694
通讯作者: Xuefeng Yang
文章类型: 期刊论文
中文摘要: It is shown that a superlens with unmatched dielectric medium (termed as “unmatched superlens”, UMSL) can enable super-resolution imaging in a broad frequency range. The broadband UMSL comprises dielectric-metal-dielectric layers with appropriately designed thickness. Numerical simulations demonstrate that the deficiency of imaging due to the mismatched permittivity of the metal and dielectric can be improved with the existence of two waveguide modes of the UMSL structure. The frequency band and quality of super resolution imaging are mainly determined by the two modes, which deliver the amplitude and phase modulation of transmitted evanescent waves in a wide transversal wavenumber range.
英文摘要: It is shown that a superlens with unmatched dielectric medium (termed as “unmatched superlens”, UMSL) can enable super-resolution imaging in a broad frequency range. The broadband UMSL comprises dielectric-metal-dielectric layers with appropriately designed thickness. Numerical simulations demonstrate that the deficiency of imaging due to the mismatched permittivity of the metal and dielectric can be improved with the existence of two waveguide modes of the UMSL structure. The frequency band and quality of super resolution imaging are mainly determined by the two modes, which deliver the amplitude and phase modulation of transmitted evanescent waves in a wide transversal wavenumber range.
收录类别: Ei
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/6692
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作者单位: 中国科学院光电技术研究所

Recommended Citation:
Xuefeng Yang,Yao Liu,Junxian Ma,et al. Broadband super-resolution imaging by a superlens with unmatched dielectric medium[J]. OPTICS EXPRESS,2009,16(24):19686-19694.
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