@article { ISI:000402396000002,
	title = {Scalable, ultra-resistant structural colors based on network metamaterials},
	journal = {LIGHT-SCIENCE \& APPLICATIONS},
	volume = {6},
	year = {2017},
	month = {MAY 5},
	publisher = {CHINESE ACAD SCIENCES, CHANGCHUN INST OPTICS FINE MECHANICS AND PHYSICS},
	type = {Article},
	address = {3888, DONGNANHU ROAD, CHANGCHUN, 130033, PEOPLES R CHINA},
	abstract = {Structural colors have drawn wide attention for their potential as a future printing technology for various applications, ranging from biomimetic tissues to adaptive camouflage materials. However, an efficient approach to realize robust colors with a scalable fabrication technique is still lacking, hampering the realization of practical applications with this platform. Here, we develop a new approach based on large-scale network metamaterials that combine dealloyed subwavelength structures at the nanoscale with lossless, ultra-thin dielectric coatings. By using theory and experiments, we show how subwavelength dielectric coatings control a mechanism of resonant light coupling with epsilon-near-zero regions generated in the metallic network, generating the formation of saturated structural colors that cover a wide portion of the spectrum. Ellipsometry measurements support the efficient observation of these colors, even at angles of 70 degrees. The network-like architecture of these nanomaterials allows for high mechanical resistance, which is quantified in a series of nano-scratch tests. With such remarkable properties, these metastructures represent a robust design technology for real-world, large-scale commercial applications.},
	keywords = {nanophotonics, plasmonics, structural colors},
	issn = {2047-7538},
	doi = {10.1038/lsa.2016.233},
	author = {Henning Galinski and Gael Favraud and Hao Dong and Juan S. Totero Gongora and Gregory Favaro and Dobeli, Max and Ralph Spolenak and Andrea Fratalocchi and Federico Capasso}
}
