Graphene-enhanced infrared near-field microscopy.
basic_science · Level V
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- Record sourced from PubMed, PMID 25019504.
- Also identified by DOI 10.1021/nl501376a.
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Abstract
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 500 nm depth with λ/11-resolution.