Nano-Crystal and Microstructure Formation in Fluoride Photo-Thermo-Refractive Glass Using Chirp-Controlled Ultrafast Laser Bessel Beams

Nano-crystals were formed in the exposed regions of photo-thermo-refractive glass undergoing irradiation with zeroth order chirp-controlled ultrafast laser Bessel beams and subsequent heat treatment. Effects of various writing powers, pulse durations and heat treatment time on the distribution and t...

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Detalles Bibliográficos
Autores principales: Zhang, Yunjie, Wang, Xu, Zhang, Guodong, Stoian, Razvan, Cheng, Guanghua
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8227268/
https://www.ncbi.nlm.nih.gov/pubmed/34071595
http://dx.doi.org/10.3390/nano11061432
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author Zhang, Yunjie
Wang, Xu
Zhang, Guodong
Stoian, Razvan
Cheng, Guanghua
author_facet Zhang, Yunjie
Wang, Xu
Zhang, Guodong
Stoian, Razvan
Cheng, Guanghua
author_sort Zhang, Yunjie
collection PubMed
description Nano-crystals were formed in the exposed regions of photo-thermo-refractive glass undergoing irradiation with zeroth order chirp-controlled ultrafast laser Bessel beams and subsequent heat treatment. Effects of various writing powers, pulse durations and heat treatment time on the distribution and the size of the nano-crystals were investigated. The results show that nano-crystals’ distribution depended on the laser power density spatial shape, while the size of the nano-crystals is quasi-independent. However, the average diameter of the nano-crystals was affected by the heat treatment time, decreasing from 175 to 105 nm with the time halved. In addition, using crystallographic characterization by X-ray diffraction, the nano-crystal composition in the laser-exposed regions was detected to be sodium fluoride.
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spelling pubmed-82272682021-06-26 Nano-Crystal and Microstructure Formation in Fluoride Photo-Thermo-Refractive Glass Using Chirp-Controlled Ultrafast Laser Bessel Beams Zhang, Yunjie Wang, Xu Zhang, Guodong Stoian, Razvan Cheng, Guanghua Nanomaterials (Basel) Article Nano-crystals were formed in the exposed regions of photo-thermo-refractive glass undergoing irradiation with zeroth order chirp-controlled ultrafast laser Bessel beams and subsequent heat treatment. Effects of various writing powers, pulse durations and heat treatment time on the distribution and the size of the nano-crystals were investigated. The results show that nano-crystals’ distribution depended on the laser power density spatial shape, while the size of the nano-crystals is quasi-independent. However, the average diameter of the nano-crystals was affected by the heat treatment time, decreasing from 175 to 105 nm with the time halved. In addition, using crystallographic characterization by X-ray diffraction, the nano-crystal composition in the laser-exposed regions was detected to be sodium fluoride. MDPI 2021-05-28 /pmc/articles/PMC8227268/ /pubmed/34071595 http://dx.doi.org/10.3390/nano11061432 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhang, Yunjie
Wang, Xu
Zhang, Guodong
Stoian, Razvan
Cheng, Guanghua
Nano-Crystal and Microstructure Formation in Fluoride Photo-Thermo-Refractive Glass Using Chirp-Controlled Ultrafast Laser Bessel Beams
title Nano-Crystal and Microstructure Formation in Fluoride Photo-Thermo-Refractive Glass Using Chirp-Controlled Ultrafast Laser Bessel Beams
title_full Nano-Crystal and Microstructure Formation in Fluoride Photo-Thermo-Refractive Glass Using Chirp-Controlled Ultrafast Laser Bessel Beams
title_fullStr Nano-Crystal and Microstructure Formation in Fluoride Photo-Thermo-Refractive Glass Using Chirp-Controlled Ultrafast Laser Bessel Beams
title_full_unstemmed Nano-Crystal and Microstructure Formation in Fluoride Photo-Thermo-Refractive Glass Using Chirp-Controlled Ultrafast Laser Bessel Beams
title_short Nano-Crystal and Microstructure Formation in Fluoride Photo-Thermo-Refractive Glass Using Chirp-Controlled Ultrafast Laser Bessel Beams
title_sort nano-crystal and microstructure formation in fluoride photo-thermo-refractive glass using chirp-controlled ultrafast laser bessel beams
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8227268/
https://www.ncbi.nlm.nih.gov/pubmed/34071595
http://dx.doi.org/10.3390/nano11061432
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