1st Institute of Physics (IA), RWTH Aachen University , 52056 Aachen, Germany.
Nano Lett. 2014 Aug 13;14(8):4400-5. doi: 10.1021/nl501376a. Epub 2014 Jul 17.
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.
石墨烯是一种很有前途的二维平台，可广泛应用于纳米光子学。最近的理论预测，石墨烯还可以增强亚衍射极限成像的消逝场。在这里，我们首次实验证明单层石墨烯可以将消逝信息增强 7 倍，从而将传统的近场红外显微镜的分辨率提高到 λ/11，可解析 500nm 深度的埋入结构。
