Issue 11, 2014

A large-scale lithography-free metasurface with spectrally tunable super absorption

Abstract

Recently, periodically patterned metasurfaces have been employed to realize on-chip super/near-perfect optical absorption. However, most reported meta-absorbers rely on top-down micro/nano-lithography, which imposed a serious cost barrier on the development of practical applications, especially in the visible-infrared (IR) domain and at very large scales. Here we report a simple method to manufacture super absorptive metasurfaces using direct sputtering deposition. By controlling the deposition and post thermal treatment conditions, random metallic nanoparticles (NPs) can be formed easily on rigid and flexible substrates to function as the nanoantennas of spectrally tunable meta-absorbers. This low-cost and highly scalable approach would release the manufacturing barrier for previously reported meta-absorbers and therefore enable the development of affordable and large-scale thin-film metamaterial structures and devices.

Graphical abstract: A large-scale lithography-free metasurface with spectrally tunable super absorption

Supplementary files

Article information

Article type
Communication
Submitted
10 Feb 2014
Accepted
11 Mar 2014
First published
13 Mar 2014

Nanoscale, 2014,6, 5599-5605

A large-scale lithography-free metasurface with spectrally tunable super absorption

K. Liu, X. Zeng, S. Jiang, D. Ji, H. Song, N. Zhang and Q. Gan, Nanoscale, 2014, 6, 5599 DOI: 10.1039/C4NR00747F

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements