Effective medium-based optical real-time control over plasmon tuning in laser-induced nanocomposites

Tatiana E. Itina; Maxim Sergeev; Roman Zakoldaev

doi:10.1117/12.2583243

10 March 2021 Effective medium-based optical real-time control over plasmon tuning in laser-induced nanocomposites

Tatiana E. Itina, Maxim Sergeev, Roman Zakoldaev

Proceedings Volume 11675, Synthesis and Photonics of Nanoscale Materials XVIII; 116750L (2021) https://doi.org/10.1117/12.2583243
Event: SPIE LASE, 2021, Online Only

Abstract

Laser-induced structuring of nanoporous glass composites is promising for numerous emerging applications in photonics, plasmonics and medicine. In these laser interactions, an interplay of photo-thermo-chemical mechanisms is commonly activated and is extremely difficult to control. The choice of optimum laser parameters to tune the resulted optical properties remains extremely challenging. In this paper, we analyze the mechanisms involved and propose a way to control over not only structures formed by laser inside a nanoporous glass composites doped by metallic ions and nanocparticles, but also their plasmonic properties. For this, both experimental and numerical approaches are combined. The transmitted laser power is used to analyze the modification process. Spectral microanalysis provides plasmonic properties. Numerical effective medium modeling connects the measured data to the estimated size, concentration, and chemical composition of the secondary phase across the initial sample.

Conference Presentation

Citation Download Citation

Tatiana E. Itina, Maxim Sergeev, and Roman Zakoldaev "Effective medium-based optical real-time control over plasmon tuning in laser-induced nanocomposites", Proc. SPIE 11675, Synthesis and Photonics of Nanoscale Materials XVIII, 116750L (10 March 2021); https://doi.org/10.1117/12.2583243

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