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Modeling ultrafast laser-induced nanocavitation around plasmonic nanoparticles (Conference Presentation)
Author(s): Michel Meunier; Adrien Dagallier; Rémi Lachaine; Christos Boutopoulos; Étienne Boulais
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Paper Abstract

Vapor nanobubbles generated around plasmonic nanoparticles (NPs) by ultrafast laser irradiation are efficient for inducing localized damage to living cells. Killing targeted cancer cells or gene delivery can therefore be envisioned using this new technology [1,2]. The extent of the damage and its non-lethal character are linked to the size of the nanobubble. Precise understanding of the mechanisms leading to bubble formation around plasmonic nanostructures is necessary to optimize the technique. In this presentation, we present a complete model that successfully describes all interactions occurring during the irradiation of plasmonics nanostructures by an ultrafast laser of various pulse widths and fluences. Nanoavitation is caused by the interplay between heat conduction at the NP-medium interface and non-linear plasmon-enhanced photoionization of a nanoplasma in the near-field [3-5], the former being dominant for in-resonance and the latter for off-resonance irradiation. Modeling of the whole laser-nanoparticle interaction, together with the help of the shadowgraphic imaging and scattering techniques [3-5], give valuable insight on the mechanisms of cavitation at the nanoscale, leading to possible optimization of the nanostructure for bubble-based nanomedicine applications.

1- E. Boulais, R. Lachaine, A. Hatef, and M. Meunier, Journal of Photochemistry and Photobiology C: Photochemistry Reviews 17, 26-49 (2013).

2- E. Bergeron, S. Patskovsky, D. Rioux, and M. Meunier, Nanoscale 7,17836-17847 (2015).

3- E. Boulais, R. Lachaine, and M. Meunier, Nano Letters 12, 4763-4769 (2012).

4- R. Lachaine, E. Boulais, and M. Meunier, ACS Photonics 1, 331-336 (2014).

5- C. Boutopoulos, A. Hatef, M. Fortin-Deschênes, and M. Meunier Nanoscale 7,11758-11765 (2015).

Paper Details

Date Published: 21 April 2017
PDF: 1 pages
Proc. SPIE 10094, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XVII, 100940G (21 April 2017); doi: 10.1117/12.2255999
Show Author Affiliations
Michel Meunier, Ecole Polytechnique de Montréal (Canada)
Adrien Dagallier, Ecole Polytechnique de Montréal (Canada)
Rémi Lachaine, Ecole Polytechnique de Montréal (Canada)
Christos Boutopoulos, Ecole Polytechnique de Montréal (Canada)
Étienne Boulais, Ecole Polytechnique de Montréal (Canada)

Published in SPIE Proceedings Vol. 10094:
Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XVII
Alexander Heisterkamp; Peter R. Herman; Michel Meunier; Roberto Osellame, Editor(s)

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