Nonlinear Photoluminescence from Patterned ITO Thin Films

ITO is a transparent conductive material commonly used in everyday life and for its potential in material research. In nonlinear optics for instance, ITO has shown great capabilities for harmonic generation in its epsilon-near-zero configuration. In this article, we demonstrate a completely new nonl...

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Main Authors: Dell’Ova Florian, Malchow Konstantin, Pocholle Nicolas, Chassagon Rémi, Heintz Olivier, Colas des Francs Gérard, Dujardin Erik, Bouhelier Alexandre
Format: Article
Language:English
Published: EDP Sciences 2023-01-01
Series:EPJ Web of Conferences
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2023/13/epjconf_eosam2023_06013.pdf
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author Dell’Ova Florian
Malchow Konstantin
Pocholle Nicolas
Chassagon Rémi
Heintz Olivier
Colas des Francs Gérard
Dujardin Erik
Bouhelier Alexandre
author_facet Dell’Ova Florian
Malchow Konstantin
Pocholle Nicolas
Chassagon Rémi
Heintz Olivier
Colas des Francs Gérard
Dujardin Erik
Bouhelier Alexandre
author_sort Dell’Ova Florian
collection DOAJ
description ITO is a transparent conductive material commonly used in everyday life and for its potential in material research. In nonlinear optics for instance, ITO has shown great capabilities for harmonic generation in its epsilon-near-zero configuration. In this article, we demonstrate a completely new nonlinear behaviour from ITO thin layers. After a Ga-Focused Ion Beam (FIB) milling of the thin film, we observe nonlinear photoluminescence produced for tightly focused femtosecond pulses. The signal shares strong similarities with that commonly detected from noble metals. We show that the arising of this nonlinear photoluminescence originates from the radiative decay of metal-like hot electron distribution in the material and is associated to a modification of the optical properties by the Ga ions.
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spelling doaj.art-0f4399fdf3164b68b207432870b847f22023-11-07T10:20:48ZengEDP SciencesEPJ Web of Conferences2100-014X2023-01-012870601310.1051/epjconf/202328706013epjconf_eosam2023_06013Nonlinear Photoluminescence from Patterned ITO Thin FilmsDell’Ova Florian0Malchow Konstantin1Pocholle Nicolas2Chassagon Rémi3Heintz Olivier4Colas des Francs Gérard5Dujardin Erik6Bouhelier Alexandre7Laboratoire ICB UMR 6303, Université de BourgogneLaboratoire ICB UMR 6303, Université de BourgogneLaboratoire ICB UMR 6303, Université de BourgogneLaboratoire ICB UMR 6303, Université de BourgogneLaboratoire ICB UMR 6303, Université de BourgogneLaboratoire ICB UMR 6303, Université de BourgogneLaboratoire ICB UMR 6303, Université de BourgogneLaboratoire ICB UMR 6303, Université de BourgogneITO is a transparent conductive material commonly used in everyday life and for its potential in material research. In nonlinear optics for instance, ITO has shown great capabilities for harmonic generation in its epsilon-near-zero configuration. In this article, we demonstrate a completely new nonlinear behaviour from ITO thin layers. After a Ga-Focused Ion Beam (FIB) milling of the thin film, we observe nonlinear photoluminescence produced for tightly focused femtosecond pulses. The signal shares strong similarities with that commonly detected from noble metals. We show that the arising of this nonlinear photoluminescence originates from the radiative decay of metal-like hot electron distribution in the material and is associated to a modification of the optical properties by the Ga ions.https://www.epj-conferences.org/articles/epjconf/pdf/2023/13/epjconf_eosam2023_06013.pdf
spellingShingle Dell’Ova Florian
Malchow Konstantin
Pocholle Nicolas
Chassagon Rémi
Heintz Olivier
Colas des Francs Gérard
Dujardin Erik
Bouhelier Alexandre
Nonlinear Photoluminescence from Patterned ITO Thin Films
EPJ Web of Conferences
title Nonlinear Photoluminescence from Patterned ITO Thin Films
title_full Nonlinear Photoluminescence from Patterned ITO Thin Films
title_fullStr Nonlinear Photoluminescence from Patterned ITO Thin Films
title_full_unstemmed Nonlinear Photoluminescence from Patterned ITO Thin Films
title_short Nonlinear Photoluminescence from Patterned ITO Thin Films
title_sort nonlinear photoluminescence from patterned ito thin films
url https://www.epj-conferences.org/articles/epjconf/pdf/2023/13/epjconf_eosam2023_06013.pdf
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AT heintzolivier nonlinearphotoluminescencefrompatterneditothinfilms
AT colasdesfrancsgerard nonlinearphotoluminescencefrompatterneditothinfilms
AT dujardinerik nonlinearphotoluminescencefrompatterneditothinfilms
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