Local laser-decolorizing of gamma-ray irradiated silicate glass

João M Pinto Coelho; Catarina Oliveira Silva; Andreia Filipa Cardoso Ruivo; Maria Luisa Botelho; António Pires de  Matos

doi:10.1117/1.3591948

Local laser-decolorizing of gamma-ray irradiated silicate glass

João M Pinto Coelho, Catarina Oliveira Silva, Andreia Filipa Cardoso Ruivo, Maria Luisa Botelho, António Pires de Matos

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Local decolorizing of gamma-ray irradiated silicate glasses has been studied under thermal annealing by a laser beam. The influence of the beam's exposure time was studied, showing that an increase of the glass temperature on the irradiated areas can locally induce complete decolorizing (bleaching) of glass. In this work, the heat conduction differential equation is solved by numerical approach using the finite element method and results are compared by experimental analysis. Although much work is being developed in the fields of color centers creation and its decay by heat, this work presents the first systematic study on near-infrared decolorizing of gamma-irradiated float silicate glasses.

Original language	English
Article number	064301
Journal	Optical Engineering
Volume	50
Issue number	6
DOIs	https://doi.org/10.1117/1.3591948
Publication status	Published - Jun 2011

Keywords

color centers decay
gamma-ray induced coloration
laser applications
laser irradiation of glass
laser-bleaching
laser-decolorizing
silicate glasses

Access to Document

10.1117/1.3591948Licence: Unspecified

Cite this

@article{be5c0d4cb9304d24a89ae4d8297a7434,

title = "Local laser-decolorizing of gamma-ray irradiated silicate glass",

abstract = "Local decolorizing of gamma-ray irradiated silicate glasses has been studied under thermal annealing by a laser beam. The influence of the beam's exposure time was studied, showing that an increase of the glass temperature on the irradiated areas can locally induce complete decolorizing (bleaching) of glass. In this work, the heat conduction differential equation is solved by numerical approach using the finite element method and results are compared by experimental analysis. Although much work is being developed in the fields of color centers creation and its decay by heat, this work presents the first systematic study on near-infrared decolorizing of gamma-irradiated float silicate glasses.",

keywords = "color centers decay, gamma-ray induced coloration, laser applications, laser irradiation of glass, laser-bleaching, laser-decolorizing, silicate glasses",

author = "Coelho, {Jo{\~a}o M Pinto} and Silva, {Catarina Oliveira} and Ruivo, {Andreia Filipa Cardoso} and Botelho, {Maria Luisa} and Matos, {Ant{\'o}nio Pires de}",

note = "Funding Information: The authors would like to acknowledge Mr. Fernando Monteiro for his collaboration in this work, as well as Prof. Jos{\'e} Ramos of the Faculty of Fine Arts for his collaboration with some of the photos presented in this article. The reported work was partially supported by FCT Project PTDC/EAT/67354/2006. Copyright: Copyright 2011 Elsevier B.V., All rights reserved.",

year = "2011",

month = jun,

doi = "10.1117/1.3591948",

language = "English",

volume = "50",

journal = "Optical Engineering",

issn = "0091-3286",

publisher = "Spie -- the Int Soc for Optical Engineering",

number = "6",

}

TY - JOUR

T1 - Local laser-decolorizing of gamma-ray irradiated silicate glass

AU - Coelho, João M Pinto

AU - Silva, Catarina Oliveira

AU - Ruivo, Andreia Filipa Cardoso

AU - Botelho, Maria Luisa

AU - Matos, António Pires de

N1 - Funding Information: The authors would like to acknowledge Mr. Fernando Monteiro for his collaboration in this work, as well as Prof. José Ramos of the Faculty of Fine Arts for his collaboration with some of the photos presented in this article. The reported work was partially supported by FCT Project PTDC/EAT/67354/2006. Copyright: Copyright 2011 Elsevier B.V., All rights reserved.

PY - 2011/6

Y1 - 2011/6

N2 - Local decolorizing of gamma-ray irradiated silicate glasses has been studied under thermal annealing by a laser beam. The influence of the beam's exposure time was studied, showing that an increase of the glass temperature on the irradiated areas can locally induce complete decolorizing (bleaching) of glass. In this work, the heat conduction differential equation is solved by numerical approach using the finite element method and results are compared by experimental analysis. Although much work is being developed in the fields of color centers creation and its decay by heat, this work presents the first systematic study on near-infrared decolorizing of gamma-irradiated float silicate glasses.

AB - Local decolorizing of gamma-ray irradiated silicate glasses has been studied under thermal annealing by a laser beam. The influence of the beam's exposure time was studied, showing that an increase of the glass temperature on the irradiated areas can locally induce complete decolorizing (bleaching) of glass. In this work, the heat conduction differential equation is solved by numerical approach using the finite element method and results are compared by experimental analysis. Although much work is being developed in the fields of color centers creation and its decay by heat, this work presents the first systematic study on near-infrared decolorizing of gamma-irradiated float silicate glasses.

KW - color centers decay

KW - gamma-ray induced coloration

KW - laser applications

KW - laser irradiation of glass

KW - laser-bleaching

KW - laser-decolorizing

KW - silicate glasses

UR - http://www.scopus.com/inward/record.url?scp=81755161202&partnerID=8YFLogxK

U2 - 10.1117/1.3591948

DO - 10.1117/1.3591948

M3 - Article

SN - 0091-3286

VL - 50

JO - Optical Engineering

JF - Optical Engineering

IS - 6

M1 - 064301

ER -

Local laser-decolorizing of gamma-ray irradiated silicate glass

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this