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Sol–Gel-Derived Glass-Ceramic Photorefractive Films for Photonic Structures

Anna Lukowiak, Lidia Zur, Thi Tran, Marcello Meneghetti, Simone Berneschi, Gualtiero Nunzi Conti, Stefano Pelli, Cosimo Trono, B.N. Bhaktha, Daniele Zonta, Stefano Taccheo Orcid Logo, Giancarlo Righini, Maurizio Ferrari

Crystals, Volume: 7, Issue: 2, Start page: 61

Swansea University Author: Stefano Taccheo Orcid Logo

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DOI (Published version): 10.3390/cryst7020061

Abstract

Glass photonics are widespread, from everyday objects around us to high-tech specialized devices. Among different technologies, sol–gel synthesis allows for nanoscale materials engineering by exploiting its unique structures, such as transparent glass-ceramics, to tailor optical and electromagnetic...

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Published in: Crystals
ISSN: 2073-4352
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa32358
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first_indexed 2017-03-09T14:00:41Z
last_indexed 2018-02-09T05:20:12Z
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spelling 2017-07-07T11:24:11.8627498 v2 32358 2017-03-09 Sol–Gel-Derived Glass-Ceramic Photorefractive Films for Photonic Structures ab5f951bdf448ec045d42a35d95dc0bf 0000-0003-0578-0563 Stefano Taccheo Stefano Taccheo true false 2017-03-09 MECH Glass photonics are widespread, from everyday objects around us to high-tech specialized devices. Among different technologies, sol–gel synthesis allows for nanoscale materials engineering by exploiting its unique structures, such as transparent glass-ceramics, to tailor optical and electromagnetic properties and to boost photon-management yield. Here, we briefly discuss the state of the technology and show that the choice of the sol–gel as a synthesis method brings the advantage of process versatility regarding materials composition and ease of implementation. In this context, we present tin-dioxide–silica (SnO2–SiO2) glass-ceramic waveguides activated by europium ions (Eu3+). The focus is on the photorefractive properties of this system because its photoluminescence properties have already been discussed in the papers presented in the bibliography. The main findings include the high photosensitivity of sol–gel 25SnO2:75SiO2 glass-ceramic waveguides; the ultraviolet (UV)-induced refractive index change (Δn ~ −1.6 × 10−3), the easy fabrication process, and the low propagation losses (0.5 ± 0.2 dB/cm), that make this glass-ceramic an interesting photonic material for smart optical applications. Journal Article Crystals 7 2 61 2073-4352 sol–gel; SnO2–SiO2; transparent glass-ceramics; photorefractivity; planar waveguides; attenuation coefficient; Lorentz–Lorenz formula 21 2 2017 2017-02-21 10.3390/cryst7020061 COLLEGE NANME Mechanical Engineering COLLEGE CODE MECH Swansea University 2017-07-07T11:24:11.8627498 2017-03-09T12:13:07.0274484 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering Anna Lukowiak 1 Lidia Zur 2 Thi Tran 3 Marcello Meneghetti 4 Simone Berneschi 5 Gualtiero Nunzi Conti 6 Stefano Pelli 7 Cosimo Trono 8 B.N. Bhaktha 9 Daniele Zonta 10 Stefano Taccheo 0000-0003-0578-0563 11 Giancarlo Righini 12 Maurizio Ferrari 13
title Sol–Gel-Derived Glass-Ceramic Photorefractive Films for Photonic Structures
spellingShingle Sol–Gel-Derived Glass-Ceramic Photorefractive Films for Photonic Structures
Stefano Taccheo
title_short Sol–Gel-Derived Glass-Ceramic Photorefractive Films for Photonic Structures
title_full Sol–Gel-Derived Glass-Ceramic Photorefractive Films for Photonic Structures
title_fullStr Sol–Gel-Derived Glass-Ceramic Photorefractive Films for Photonic Structures
title_full_unstemmed Sol–Gel-Derived Glass-Ceramic Photorefractive Films for Photonic Structures
title_sort Sol–Gel-Derived Glass-Ceramic Photorefractive Films for Photonic Structures
author_id_str_mv ab5f951bdf448ec045d42a35d95dc0bf
author_id_fullname_str_mv ab5f951bdf448ec045d42a35d95dc0bf_***_Stefano Taccheo
author Stefano Taccheo
author2 Anna Lukowiak
Lidia Zur
Thi Tran
Marcello Meneghetti
Simone Berneschi
Gualtiero Nunzi Conti
Stefano Pelli
Cosimo Trono
B.N. Bhaktha
Daniele Zonta
Stefano Taccheo
Giancarlo Righini
Maurizio Ferrari
format Journal article
container_title Crystals
container_volume 7
container_issue 2
container_start_page 61
publishDate 2017
institution Swansea University
issn 2073-4352
doi_str_mv 10.3390/cryst7020061
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering
document_store_str 0
active_str 0
description Glass photonics are widespread, from everyday objects around us to high-tech specialized devices. Among different technologies, sol–gel synthesis allows for nanoscale materials engineering by exploiting its unique structures, such as transparent glass-ceramics, to tailor optical and electromagnetic properties and to boost photon-management yield. Here, we briefly discuss the state of the technology and show that the choice of the sol–gel as a synthesis method brings the advantage of process versatility regarding materials composition and ease of implementation. In this context, we present tin-dioxide–silica (SnO2–SiO2) glass-ceramic waveguides activated by europium ions (Eu3+). The focus is on the photorefractive properties of this system because its photoluminescence properties have already been discussed in the papers presented in the bibliography. The main findings include the high photosensitivity of sol–gel 25SnO2:75SiO2 glass-ceramic waveguides; the ultraviolet (UV)-induced refractive index change (Δn ~ −1.6 × 10−3), the easy fabrication process, and the low propagation losses (0.5 ± 0.2 dB/cm), that make this glass-ceramic an interesting photonic material for smart optical applications.
published_date 2017-02-21T03:39:38Z
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