Material analysis using laser-plasma driven luminescence spectroscopy

Barberio, M.; Skantzakis, E.; Antici, P.

doi:10.1016/j.jlumin.2019.116603

Cited by 2 publications

(1 citation statement)

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“…Subsequently, we study the luminescence characteristics and plasmonic emission of metal NPs, as well as their stability during a long-term irradiation. The irradiation was performed using a technique called In-Air Plasma-Induced Luminescence (In-Air-PIL) [37,38], obtained by tightly focusing an intense laser in air. The usefulness of this technique has firstly been demonstrated when irradiating bulk material samples to retrieve their composition.…”

Section: Jinst 17 P10001mentioning

confidence: 99%

Detection of laser-plasma experiment radiation using nanoparticle coatings as fluorescent sensors

Barberio

Salvadori²,

Vallières³

et al. 2022

J. Inst.

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In this paper, we test the possibility to use luminescence of metal (aluminum and silver) nanoparticles (NPs), synthesized using different laser-driven ablation methods, as sensors for radiation detection. Energetic photon and electron radiation produced by intense plasma induces a red-shift in the luminescence emitted by the NPs. Observing the phenomenon over long time periods (hours), we see an oscillating behavior of the luminescence signal, which can be explained in terms of de-trapping of electrons caused by energetic radiations and re-trapping in the empty levels of low energetic electrons emitted from the plasma. Observing the luminescence shift allows detecting electromagnetic and radiation pollution, e.g. when dispersed in an experimental chamber.

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Section: Jinst 17 P10001mentioning

confidence: 99%