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We acknowledge support to the EUROfusion project "High gain direct drive ignition with Foams as a Pathway to Energy (FoPIFE)."
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Sanchez-Perez, FranciscoCorresponding AuthorKohanoff, JorgeAuthorPena-Rodriguez, OvidioAuthorRivera, AntonioAuthorHollow silver nanoparticle formation under ultrafast laser irradiation via single- and multiple-shots
Publicated to:Journal Of Chemical Physics. 162 (15): 154701- - 2025-04-21 162(15), DOI: 10.1063/5.0252729
Authors: Sanchez-Perez, Francisco; Prada, Alejandro; Valencia, Felipe J; Kohanoff, Jorge; Pena-Rodriguez, Ovidio; Rivera, Antonio
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Abstract
The morphological changes induced in metal nanoparticles by the interaction with laser pulses have an important impact on their optical response. In this work, by means of an atomistic model, we have studied the formation of cavities in spherical silver nanoparticles embedded in amorphous silica using one or more femtosecond laser pulses. The model allows us to identify the different processes that lead to cavity formation and how they affect the variation of the aspect ratio, i.e., the relationship between the size of the cavity and that of the metallic sphere. The model is used to explain experiments revealing the conditions necessary to produce hollow metal nanoparticles. New information on hollow nanoparticle formation both in single shot and multiple shot regimes is reported. The atomistic model in combination with an optical model constitutes a tool to tune the properties of hollow nanoparticles, as shown in this paper. This way, we can achieve a fine control over the aspect ratio and, thus, about the localized surface plasmon resonance of the hollow nanoparticles.
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Bibliometric impact. Analysis of the contribution and dissemination channel
The work has been published in the journal Journal Of Chemical Physics due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2025, it was in position 90/178, thus managing to position itself as a Q1 (Primer Cuartil), in the category Chemistry, Physical.
Leadership analysis of institutional authors
This work has been carried out with international collaboration, specifically with researchers from: Chile.
There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (SANCHEZ PEREZ, FRANCISCO) and Last Author (RIVERA DE MENA, ANTONIO JUAN).
the author responsible for correspondence tasks has been SANCHEZ PEREZ, FRANCISCO.