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Open AccessArticle

Real-Time Analysis of Laser-Induced Plasmon Tuning in Nanoporous Glass Composite

1
Faculty of Laser Photonics and Optoelectronics, ITMO University, 197101 Saint Petersburg, Russia
2
Laboratoire Hubert Curien, UMR CNRS 5516/UJM/Univ. Lyon, Bat. F, 18 rue du Pr. Benoit Lauras, 42000 Saint-Etienne, France
*
Author to whom correspondence should be addressed.
Nanomaterials 2020, 10(6), 1131; https://doi.org/10.3390/nano10061131
Received: 5 May 2020 / Revised: 27 May 2020 / Accepted: 4 June 2020 / Published: 8 June 2020
Laser-induced structuring in nanoporous glass composites is promising for numerous emerging applications in photonics and plasmonics. Local laser irradiation activates an interplay of photo-thermo-chemical mechanisms that are extremely difficult to control. The choice of optimum laser parameters to fabricate structures with desired properties remains extremely challenging. Another challenging issue is the investigation of the properties of laser-induced buried structures. In this paper, we propose a way to control the plasmonic structures formation inside a nanoporous glass composite with doped silver/copper ions that are induced by laser irradiation. Experimental and numerical investigations both demonstrate the capacities of the procedure proving its validity and application potential. In particular, we register transmitted laser power to analyse and control the modification process. Spectral micro-analysis of the irradiated region shows a multilayer plasmonic structure inside the glass composite. Subsequently, the effective medium theory connects the measured spectral data to the numerically estimated size, concentration, and chemical composition of the secondary phase across the initial GC sample and the fabricated structure. View Full-Text
Keywords: nanocomposites; porous glass; laser writing; plasmon resonance; nanoparticles; effective medium theory nanocomposites; porous glass; laser writing; plasmon resonance; nanoparticles; effective medium theory
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MDPI and ACS Style

Sergeev, M.M.; Zakoldaev, R.A.; Itina, T.E.; Varlamov, P.V.; Kostyuk, G.K. Real-Time Analysis of Laser-Induced Plasmon Tuning in Nanoporous Glass Composite. Nanomaterials 2020, 10, 1131.

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