Abstract
Recently, graphene plasmons with an excellent tenability by doping or gating have been drawing increasing interest. In this work, we designed graphene-based superlens to achieve subwavelength optical imaging. We systematically investigated the imaging property in monolayer and multi-layer graphene structures and discussed in detail the effects of possible physical quantities. We found that the image resolution of the graphene-based superlens could be better than λ/50, since graphene plasmons could significantly amplify evanescent waves carrying the high spatial frequency information of the object, and restore them at the image plane.
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Acknowledgments
This work is financially supported by the State Key Program for Basic Research of China (SKPBRC) under Grant Nos. 2013CB632703 and 2012CB921501, the National Natural Science Foundation of China (NSFC) under Grant Nos. 11104136, 11104135, 11304159, 91221206, and 51271092, the Natural Science Foundation of Zhejiang Province under Grant Nos. LY13A040004 and LY14A040004, the Specialized Research Fund for the Doctoral Program of Higher Education of China under Grant No. 20133223120006, and the Scientific Research Foundation of Nanjing University of Posts and Telecommunications under Grant No. NY213023.
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Wang, P., Tang, C., Yan, Z. et al. Graphene-based Superlens for Subwavelength Optical Imaging by Graphene Plasmon Resonances. Plasmonics 11, 515–522 (2016). https://doi.org/10.1007/s11468-015-0074-4
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DOI: https://doi.org/10.1007/s11468-015-0074-4