Richards, BDO orcid.org/0000-0002-1552-9244, Boontan, A, Mann, T et al. (4 more authors) (2019) Tm³⁺ Tellurite-Modified-Silica Glass Thin Films Fabricated Using Ultrafast Laser Plasma Doping. IEEE Journal of Selected Topics in Quantum Electronics, 25 (4). 8700108. ISSN 1077-260X
Abstract
Thin glass films have been produced by implanting Tm³⁺ doped and Tm³⁺/Er³⁺ codoped tellurite glasses into silica substrates using ultrafast laser plasma doping for the first time. The resulting glass films had thicknesses of up to 2 µm, refractive indices of 1.5 – 1.65 and exhibited photoluminscence in the 1.5 – 2.1 µm wavelength region when excited with 808 nm and 976 nm laser diodes. The OH⁻ content of the silica glass substrate was also found to have an effect on the Tm³⁺: ³F₄ photoluminescence lifetime in the modified thin glass film layer, with the high OH⁻ containing substrate exhibiting a shorter lifetime. Through optimisation of the femtosecond laser ablation parameters, we have produced crack-free thin films of Tm³⁺ doped tellurite-modified silica glass layers with good thickness uniformities of ±10 nm, and the refractive index of the modified layer is up to 13% higher than the bare substrate material.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | This work is licensed under a Creative Commons Attribution 3.0 License. For more information, see http://creativecommons.org/licenses/by/3.0/ |
Keywords: | Erbium; Thulium; Optical thin films; Optical glass; femtosecond laser ablation; spectroscopy; ultrafast optics |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) |
Funding Information: | Funder Grant number EPSRC EP/M015165/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 10 Oct 2018 14:40 |
Last Modified: | 14 Nov 2018 05:48 |
Status: | Published |
Publisher: | IEEE |
Identification Number: | 10.1109/JSTQE.2018.2875772 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:136893 |