Influence of Er<sup>3+</sup>ion concentration on optical and photoluminescence properties of Er<sup>3+</sup>-doped gadolinium-calcium silica borate glasses

© 2016 Elsevier B.V. The Er3+-doped gadolinium calcium silica borate glasses of composition (55-x) B2O3– 10 SiO2– 25 Gd2O3– 10 CaO – x Er2O3, where x = 0.0, 0.5, 1.0, 1.5, 2.0 and 2.5 mol %, have been prepared by conventional melt quenching technique and are characterized through optical absorption,...

Full description

Saved in:
Bibliographic Details
Main Authors: C. R. Kesavulu, H. J. Kim, S. W. Lee, J. Kaewkhao, N. Wantana, S. Kothan, S. Kaewjaeng
Format: Journal
Published: 2018
Subjects:
Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84988474551&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/55842
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Chiang Mai University
id th-cmuir.6653943832-55842
record_format dspace
spelling th-cmuir.6653943832-558422018-09-05T03:05:51Z Influence of Er<sup>3+</sup>ion concentration on optical and photoluminescence properties of Er<sup>3+</sup>-doped gadolinium-calcium silica borate glasses C. R. Kesavulu H. J. Kim S. W. Lee J. Kaewkhao N. Wantana S. Kothan S. Kaewjaeng Engineering Materials Science © 2016 Elsevier B.V. The Er3+-doped gadolinium calcium silica borate glasses of composition (55-x) B2O3– 10 SiO2– 25 Gd2O3– 10 CaO – x Er2O3, where x = 0.0, 0.5, 1.0, 1.5, 2.0 and 2.5 mol %, have been prepared by conventional melt quenching technique and are characterized through optical absorption, visible and near-infrared (NIR) emission spectra and decay time measurements. Judd-Ofelt (JO) intensity parameters (Ωλ, λ = 2, 4 and 6) have been derived from the absorption spectrum of 0.5 mol % Er2O3doped glass and in turn are used to calculate radiative properties for the important luminescent levels of Er3+ions. The studied glasses show intense and broad green (550 nm) and red (591 nm) visible emissions under at 379 nm excitation. Upon excitation at 980 nm laser diode, an intense 1.53 μm NIR emission has been observed with the maximum full width at half maximum (FWHM) and its value is found to be 106 nm for 2.5 mol % Er3+-doped gadolinium calcium silica borate glasses. This broad luminescence locates in the region of 1420–1635 nm and covers the S, C and L bands. The decay curves of the4I13/2level exhibit exponential nature for all the concentrations. The lifetime of the4I13/2level has found to be decrease from 1.46 to 1.35 ms with increase of Er3+ion concentration. Hence, these results clearly indicate that present glasses are suitable for efficient short and conventional-length optical amplifiers and tunable lasers. 2018-09-05T03:02:09Z 2018-09-05T03:02:09Z 2016-01-01 Journal 09258388 2-s2.0-84988474551 10.1016/j.jallcom.2016.04.314 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84988474551&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/55842
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Engineering
Materials Science
spellingShingle Engineering
Materials Science
C. R. Kesavulu
H. J. Kim
S. W. Lee
J. Kaewkhao
N. Wantana
S. Kothan
S. Kaewjaeng
Influence of Er<sup>3+</sup>ion concentration on optical and photoluminescence properties of Er<sup>3+</sup>-doped gadolinium-calcium silica borate glasses
description © 2016 Elsevier B.V. The Er3+-doped gadolinium calcium silica borate glasses of composition (55-x) B2O3– 10 SiO2– 25 Gd2O3– 10 CaO – x Er2O3, where x = 0.0, 0.5, 1.0, 1.5, 2.0 and 2.5 mol %, have been prepared by conventional melt quenching technique and are characterized through optical absorption, visible and near-infrared (NIR) emission spectra and decay time measurements. Judd-Ofelt (JO) intensity parameters (Ωλ, λ = 2, 4 and 6) have been derived from the absorption spectrum of 0.5 mol % Er2O3doped glass and in turn are used to calculate radiative properties for the important luminescent levels of Er3+ions. The studied glasses show intense and broad green (550 nm) and red (591 nm) visible emissions under at 379 nm excitation. Upon excitation at 980 nm laser diode, an intense 1.53 μm NIR emission has been observed with the maximum full width at half maximum (FWHM) and its value is found to be 106 nm for 2.5 mol % Er3+-doped gadolinium calcium silica borate glasses. This broad luminescence locates in the region of 1420–1635 nm and covers the S, C and L bands. The decay curves of the4I13/2level exhibit exponential nature for all the concentrations. The lifetime of the4I13/2level has found to be decrease from 1.46 to 1.35 ms with increase of Er3+ion concentration. Hence, these results clearly indicate that present glasses are suitable for efficient short and conventional-length optical amplifiers and tunable lasers.
format Journal
author C. R. Kesavulu
H. J. Kim
S. W. Lee
J. Kaewkhao
N. Wantana
S. Kothan
S. Kaewjaeng
author_facet C. R. Kesavulu
H. J. Kim
S. W. Lee
J. Kaewkhao
N. Wantana
S. Kothan
S. Kaewjaeng
author_sort C. R. Kesavulu
title Influence of Er<sup>3+</sup>ion concentration on optical and photoluminescence properties of Er<sup>3+</sup>-doped gadolinium-calcium silica borate glasses
title_short Influence of Er<sup>3+</sup>ion concentration on optical and photoluminescence properties of Er<sup>3+</sup>-doped gadolinium-calcium silica borate glasses
title_full Influence of Er<sup>3+</sup>ion concentration on optical and photoluminescence properties of Er<sup>3+</sup>-doped gadolinium-calcium silica borate glasses
title_fullStr Influence of Er<sup>3+</sup>ion concentration on optical and photoluminescence properties of Er<sup>3+</sup>-doped gadolinium-calcium silica borate glasses
title_full_unstemmed Influence of Er<sup>3+</sup>ion concentration on optical and photoluminescence properties of Er<sup>3+</sup>-doped gadolinium-calcium silica borate glasses
title_sort influence of er<sup>3+</sup>ion concentration on optical and photoluminescence properties of er<sup>3+</sup>-doped gadolinium-calcium silica borate glasses
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84988474551&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/55842
_version_ 1681424580756897792