Next Article in Journal
Temperature-Dependent Sellmeier Equations of IR Nonlinear Optical Crystal BaGa4Se7
Next Article in Special Issue
Interface Crystallization of Ceria in Porous Silica Films for Solar Applications
Previous Article in Journal
Synthesis, Crystal Structure, Spectroscopic Properties, and DFT Studies of 7,9-Dibromobenzo[h]quinolin-10-ol
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessArticle
Crystals 2017, 7(2), 61; doi:10.3390/cryst7020061

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

1
Institute of Low Temperature and Structure Research, PAS, 2 Okolna St., 50-422 Wroclaw, Poland
2
Centro di Studi e Ricerche “Enrico Fermi”, Piazza del Viminale 1, 00184 Roma, Italy
3
IFN-CNR CSMFO Lab., and FBK Photonics Unit via alla Cascata 56/C Povo, 38123 Trento, Italy
4
DICAM Department of Civil, Environmental and Mechanical Engineering, University of Trento, Via Mesiano, 77, 38123 Trento, Italy
5
Ho Chi Minh City University of Technical Education, 1 Vo Van Ngan Street, Linh Chieu Ward, Thu Duc District, Ho Chi Minh City, Vietnam
6
Department of Physics, Via Sommarive 14, Povo, 38123 Trento, Italy
7
CNR-IFAC Via Madonna del Piano, 10, 50019 Sesto Fiorentino, FI, Italy
8
Department of Physics, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
9
University of Strathclyde Glasgow, 16 Richmond St, Glasgow G1 1XQ, UK
10
College of Engineering, Swansea University, Singleton Park, Swansea SA2 8PP, UK
*
Author to whom correspondence should be addressed.
Academic Editors: Rui M. Almeida and Luís F. Santos
Received: 5 January 2017 / Revised: 8 February 2017 / Accepted: 17 February 2017 / Published: 21 February 2017
(This article belongs to the Special Issue Crystallization of Sol-Gel Derived Glasses)
View Full-Text   |   Download PDF [1106 KB, uploaded 21 February 2017]   |  

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 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. View Full-Text
Keywords: sol–gel; SnO2–SiO2; transparent glass-ceramics; photorefractivity; planar waveguides; attenuation coefficient; Lorentz–Lorenz formula sol–gel; SnO2–SiO2; transparent glass-ceramics; photorefractivity; planar waveguides; attenuation coefficient; Lorentz–Lorenz formula
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Lukowiak, A.; Zur, L.; Tran, T.N.L.; Meneghetti, M.; Berneschi, S.; Nunzi Conti, G.; Pelli, S.; Trono, C.; Bhaktha, B.S.; Zonta, D.; Taccheo, S.; Righini, G.C.; Ferrari, M. Sol–Gel-Derived Glass-Ceramic Photorefractive Films for Photonic Structures. Crystals 2017, 7, 61.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Crystals EISSN 2073-4352 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top