Highly efficient and ultra-broadband graphene oxide ultrathin lenses with three-dimensional subwavelength focusing

Zheng, X, Jia, B, Lin, H, Qiu, L, Li, D and Gu, M 2015, 'Highly efficient and ultra-broadband graphene oxide ultrathin lenses with three-dimensional subwavelength focusing', Nature Communications, vol. 6, 8433, pp. 1-7.


Document type: Journal Article
Collection: Journal Articles

Attached Files
Name Description MIMEType Size
n2006058010.pdf Published Version application/pdf 1.54MB
Title Highly efficient and ultra-broadband graphene oxide ultrathin lenses with three-dimensional subwavelength focusing
Author(s) Zheng, X
Jia, B
Lin, H
Qiu, L
Li, D
Gu, M
Year 2015
Journal name Nature Communications
Volume number 6
Article Number 8433
Start page 1
End page 7
Total pages 7
Publisher Nature Publishing Group
Abstract Nanometric flat lenses with three-dimensional subwavelength focusing are indispensable in miniaturized optical systems. However, they are fundamentally challenging to achieve because of the difficulties in accurately controlling the optical wavefront by a film with nanometric thickness. Based on the unique and giant refractive index and absorption modulations of the sprayable graphene oxide thin film during its laser reduction process, we demonstrate a graphene oxide ultrathin (∼200 nm) flat lens that shows far-field three-dimensional subwavelength focusing (λ<sup>3</sup>/5) with an absolute focusing efficiency of >32% for a broad wavelength range from 400 to 1,500 nm. Our flexible graphene oxide lenses are mechanically robust and maintain excellent focusing properties under high stress. The simple and scalable fabrication approach enables wide potential applications in on-chip nanophotonics. The wavefront shaping concept opens up new avenues for easily accessible, highly precise and efficient optical beam manipulations with a flexible and integratable planar graphene oxide ultrathin film.
Subject Biomedical Engineering not elsewhere classified
Keyword(s) metasurfaces
reduction
optics
absorption
carbon
efficiency measurement
film
nanotechnology
three-dimensional modeling
ultrastructure
wavelength
DOI - identifier 10.1038/ncomms9433
Copyright notice © 2015 Macmillan Publishers Limited. All rights reserved. This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
ISSN 2041-1723
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 35 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 16 times in Scopus Article | Citations
Altmetric details:
Access Statistics: 45 Abstract Views, 11 File Downloads  -  Detailed Statistics
Created: Thu, 14 Jan 2016, 11:05:00 EST by Catalyst Administrator
© 2014 RMIT Research Repository • Powered by Fez SoftwareContact us