Open AccessNanoparticle generation inside Ag-doped LBG glass by femtosecond laser irradiation
Author(s) -
Marie Vangheluwe,
Yannick Petit,
Nicolas Marquestaut,
Alexia Corcoran,
Evelyne Fargin,
Réal Vallée,
Thierry Cardinal,
Lionel Canioni
Publication year - 2016
Publication title -
optical materials express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.925
H-Index - 66
ISSN - 2159-3930
DOI - 10.1364/ome.6.000743
Subject(s) - materials science , femtosecond , irradiation , doping , laser , optics , nanoparticle , optoelectronics , nanotechnology , physics , nuclear physics
International audiencePrecipitation of silver nanoparticles (Ag-NPs) can occur in a silver-doped lanthanum borogermanate glass matrix, either under thermal annealing or femtosecond direct laser writing (DLW). Macroscopic transmission and localized µ-fluorescence emission spectra provide typical plasmon resonance behavior of Ag-NPs. Annealing leads to the spatially random homogeneous creation of small NPs at low concentrations, while DLW shows higher and broader plasmon peaks, proving highly concentrated 3D localized structured NPs. DLW at high fluencies shows photo-induced dichroism, potentially giving access to 3D dichroic photonic responses