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Title: Refractive Index and Abbe Number Tuning via 3D Printable Optical Quality Silica–Titania–Germania Glasses

Abstract

The development of optical quality GeO 2 –TiO 2 –SiO 2 glasses compatible with direct ink writing (DIW) 3D printing is reported in this study. Colloidal GeO 2 and TiO 2 –SiO 2 core–shell feedstocks are prepared by a sol–gel method and converted to printable inks for DIW. Printed inks are subsequently densified to glass using heat treatment at temperatures up to 1100 °C in air. A series of print‐compatible glass compositions are prepared, yielding transparent glass with the highest refractive index n  = 1.576. Herein, it is shown that more TiO 2 can be incorporated into the glass without haziness or scattering through the addition of GeO 2 . The mechanisms for this are discussed, and it is shown that crystallization persists in these glasses despite the lack of visible light scattering. Finally, the combination of both TiO 2 and GeO 2 into a ternary glass also is used to independently tune the dispersion properties of the glass, as demonstrated by measured refractive indices and Abbe numbers, which has potential implications for 3D‐printed optics.

Authors:
ORCiD logo [1];  [1];  [1];  [1];  [1];  [1];  [1]
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  1. Lawrence Livermore National Laboratory 7000 East Ave. Livermore CA 94550
Publication Date:
Research Org.:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1870328
Alternate Identifier(s):
OSTI ID: 1871391; OSTI ID: 1891159
Report Number(s):
LLNL-JRNL-828583
Journal ID: ISSN 2699-9293; 2200017
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Published Article
Journal Name:
Advanced Photonics Research
Additional Journal Information:
Journal Name: Advanced Photonics Research Journal Volume: 3 Journal Issue: 10; Journal ID: ISSN 2699-9293
Publisher:
Wiley Blackwell (John Wiley & Sons)
Country of Publication:
Germany
Language:
English
Subject:
36 MATERIALS SCIENCE; 3D printing; direct ink writing; GeO2-TiO2-SiO2 glass; refractive index; Abbe number

Citation Formats

Ha, Jungmin, Sasan, Koroush, Yee, Timothy D., Lange, Andrew P., Nguyen, Du T., Dudukovic, Nikola, and Dylla-Spears, Rebecca. Refractive Index and Abbe Number Tuning via 3D Printable Optical Quality Silica–Titania–Germania Glasses. Germany: N. p., 2022. Web. doi:10.1002/adpr.202200017.
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Ha, Jungmin, Sasan, Koroush, Yee, Timothy D., Lange, Andrew P., Nguyen, Du T., Dudukovic, Nikola, & Dylla-Spears, Rebecca. Refractive Index and Abbe Number Tuning via 3D Printable Optical Quality Silica–Titania–Germania Glasses. Germany. https://doi.org/10.1002/adpr.202200017
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Ha, Jungmin, Sasan, Koroush, Yee, Timothy D., Lange, Andrew P., Nguyen, Du T., Dudukovic, Nikola, and Dylla-Spears, Rebecca. Sun . "Refractive Index and Abbe Number Tuning via 3D Printable Optical Quality Silica–Titania–Germania Glasses". Germany. https://doi.org/10.1002/adpr.202200017.
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@article{osti_1870328,
title = {Refractive Index and Abbe Number Tuning via 3D Printable Optical Quality Silica–Titania–Germania Glasses},
author = {Ha, Jungmin and Sasan, Koroush and Yee, Timothy D. and Lange, Andrew P. and Nguyen, Du T. and Dudukovic, Nikola and Dylla-Spears, Rebecca},
abstractNote = {The development of optical quality GeO 2 –TiO 2 –SiO 2 glasses compatible with direct ink writing (DIW) 3D printing is reported in this study. Colloidal GeO 2 and TiO 2 –SiO 2 core–shell feedstocks are prepared by a sol–gel method and converted to printable inks for DIW. Printed inks are subsequently densified to glass using heat treatment at temperatures up to 1100 °C in air. A series of print‐compatible glass compositions are prepared, yielding transparent glass with the highest refractive index n  = 1.576. Herein, it is shown that more TiO 2 can be incorporated into the glass without haziness or scattering through the addition of GeO 2 . The mechanisms for this are discussed, and it is shown that crystallization persists in these glasses despite the lack of visible light scattering. Finally, the combination of both TiO 2 and GeO 2 into a ternary glass also is used to independently tune the dispersion properties of the glass, as demonstrated by measured refractive indices and Abbe numbers, which has potential implications for 3D‐printed optics.},
doi = {10.1002/adpr.202200017},
journal = {Advanced Photonics Research},
number = 10,
volume = 3,
place = {Germany},
year = {Sun May 29 00:00:00 EDT 2022},
month = {Sun May 29 00:00:00 EDT 2022}
}
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https://doi.org/10.1002/adpr.202200017
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