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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 (https://creativecommons.org/licenses/by/4.0/).
Extinction cross-section spectra of a single NP averaged over the flow of (a) initial gold NPs agglomerates and (b) thermally modified spherical NPs obtained at different gas flow rates.