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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
SEM micrograph of LSFL-II on top of the ridge of ridge-like DLIP structure with a period of 10 m (DLIP-type 3) processed with the Time-Bandwidth Fuego laser system. This sample was contaminated.