Near-field phase correction for superresolution enhancement

被引：12
|
作者：
Lee, Kwangchil [1 ]
Jung, Youngjean [1 ]
Kim, Kyoungsik [1 ]
机构：
[1] Yonsei Univ, Sch Mech Engn, Seoul 120749, South Korea
来源：
PHYSICAL REVIEW B | 2009年 / 80卷 / 03期
基金：
新加坡国家研究基金会;
关键词：
MULTILAYER SILVER SUPERLENSES; NEGATIVE REFRACTION; RESOLUTION; LENS;
D O I：
10.1103/PhysRevB.80.033109
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Although superresolution can be successfully obtained by negative index materials, the unavoidable losses ultimately limits image resolution. Using the near-field active phase-correction method, we theoretically predict the significant enhancement of both superresolution and transmission in a realistic lossy superlens system. In a SiC superlens system, resolvable separation between two slits significantly improves from lambda/4.2 to lambda/14.2 and the transmission increases 30.5 times compared to the conventional index match method.
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收藏
页数：4
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