CUED Publications database

Graphene-based ultrathin flat lenses

Kong, XT and Khan, AA and Kidambi, PR and Deng, S and Yetisen, AK and Dlubak, B and Hiralal, P and Montelongo, Y and Bowen, J and Xavier, S and Jiang, K and Amaratunga, GAJ and Hofmann, S and Wilkinson, TD and Dai, Q and Butt, H (2015) Graphene-based ultrathin flat lenses. ACS Photonics, 2. pp. 200-207.

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Abstract

© 2015 American Chemical Society. 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 worlds 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: Article
Subjects: UNSPECIFIED
Divisions: Div B > Electronics, Power & Energy Conversion
Div B > Photonics
Div B > Solid State Electronics and Nanoscale Science
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 18:57
Last Modified: 21 Sep 2017 01:38
DOI: