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Graphene-based ultrathin flat lenses

Kong, Xiang-Tian; Khan, Ammar A.; Kidambi, Piran R.; Deng, Sunan; Yetisen, Ali K.; Dlubak, Bruno; Hiralal, Pritesh; Montelongo, Yunuen; Bowen, James; Xavier, Stéphane; Jiang, Kyle; Amaratunga, Gehan A. J.; Hofmann, Stephan; Wilkinson, Timothy D.; Dai, Qing and Butt, Haider (2015). Graphene-based ultrathin flat lenses. ACS Photonics, 2(2) pp. 200–207.

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DOI (Digital Object Identifier) Link: https://doi.org/10.1021/ph500197j
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Abstract

Flat lenses when compared to curved surface lenses have the advantages of being aberration free, and they offer a compact design necessary for a myriad of electro-optical applications. In this paper we present flat and ultrathin lenses based on graphene, the world’s thinnest known material. Monolayers and multilayers of graphene were fabricated into Fresnel zones to produce Fresnel zone plates, which utilize the reflection and transmission properties of graphene for their operation. The working of the lenses and their performance in the visible and terahertz regimes were analyzed computationally. Experimental measurements were also performed to characterize the lens in the visible regime, and a good agreement was obtained with the simulations. This work demonstrates the principle of atom-thick graphene-based lenses, with perspectives for ultracompact integration.

Item Type: Journal Item
Copyright Holders: 2015 American Chemical Society
ISSN: 2330-4022
Keywords: graphene; thin lenses; Fresnel zone plates
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
Faculty of Science, Technology, Engineering and Mathematics (STEM)
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Item ID: 43149
Depositing User: James Bowen
Date Deposited: 28 May 2015 10:21
Last Modified: 13 Nov 2016 04:19
URI: http://oro.open.ac.uk/id/eprint/43149
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