Two-Dimensional Imaging by Far-Field Superlens at Visible Wavelengths

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• 作者：Yi Xiong ; Zhaowei Liu ; Cheng Sun ; Xiang Zhang
• 刊名：Nano Letters
• 出版年：2007
• 出版时间：November 2007
• 年：2007
• 卷：7
• 期：11
• 页码：3360 - 3365
• 全文大小：281K
• 年卷期：v.7,no.11(November 2007)
• ISSN：1530-6992

文摘

We report that two-dimensional (2D) sub-diffraction-limited images can be theoretically reconstructed by a new metamaterial far-field superlens.The metamaterial far-field superlens, composed of a metal-dielectric multilayer and a one-dimensional (1D) subwavelength grating, can workover a broad range of visible wavelengths intrinsically. The imaging principle and the reconstruction process are described in detail. The 2Dsub-diffraction-limited imaging ability enables more applications of the far-field superlens in optical nanoimaging and sensing.