期刊
NANO LETTERS
卷 14, 期 8, 页码 4400-4405出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl501376a
关键词
Graphene; graphene plasmonics; evanescent-field enhancement; subwavelength imaging; near-field microscopy; subsurface imaging; superlensing
类别
资金
- Excellence Initiative of the German federal government
- Excellence Initiative of the German state government
- Ministry of Innovation of North Rhine-Westphalia
- DFG [SFB 917]
- Korean Defense Acquisition Program Administration
- Agency for Defense Development [UD110099GD]
Graphene is a promising two-dimensional platform for widespread nanophotonic applications. Recent theories have predicted that graphene can also enhance evanescent fields for subdiffraction-limited imaging. Here, for the first time we experimentally demonstrate that monolayer graphene offers a 7-fold enhancement of evanescent information, improving conventional infrared near-field microscopy to resolve buried structures at a SOO nm depth with lambda/11-resolution.
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