The effect of 1.25 MeV γ rays on Sm3+ doped lead fluoroborate glasses for reddish orange laser and radiation shielding applications

Akshatha Wagh, Vinod Hegde, C. S. Dwaraka Viswanath, G. Lakshminarayana, Y. Raviprakash, Sudha D. Kamath

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

This research paper accentuates on the reddish orange light generation from Sm3+ ions doped lead fluoroborate glasses and the changes in the structural, optical, thermal, morphological and mechanical properties in the same glass samples after irradiation with gamma (γ) rays of 1.25 MeV energy and 150 kGy dose. The FTIR and the UV–VIS–NIR absorption spectra verified the generation of Non-Bridging Oxygens (NBOs) after γ irradiation. The Electron Paramagnetic Resonance (EPR) endorsed the presence of defect centers in the samples both before and after irradiation (with improved defects after irradiation). The stability (Hr) and hardness (H) of the samples improved (< 5%) post irradiation, portrayed radiation resistant nature of the present titled glasses. The quality of the color emitted by the glass samples quantitatively determined by CIE chromaticity coordinates (x- ~ 0.6, y- ~ 0.39) and correlated color temperatures (CCT- ~ 1622 K), together proved the reddish orange prominence of the prepared glasses, both before and after irradiation. Sm4 (1.0 mol% Sm2O3 doped lead fluoroborate) glass sample showed better quality results compared to other samples signifying their suitability in laser materials and photonic applications, extensively due to the prominent G5/24→H7/26 emission peak. Lifetime decay was schematically analyzed for Sm4 sample, signifying dipole-dipole interactions. The study of the glass samples pre/post gamma irradiation suggested the formation of color centers, and its candidature for reddish orange laser applications with the significant stability.

Original languageEnglish
Pages (from-to)87-108
Number of pages22
JournalJournal of Luminescence
Volume199
DOIs
Publication statusPublished - 01-07-2018

Fingerprint

Radiation shielding
radiation shielding
Glass
shielding
rays
Lasers
Irradiation
Radiation
glass
irradiation
lasers
Color
Optics and Photonics
Color centers
Laser applications
Defects
dipoles
color
Gamma Rays
Electron Spin Resonance Spectroscopy

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Atomic and Molecular Physics, and Optics
  • Chemistry(all)
  • Biochemistry
  • Condensed Matter Physics

Cite this

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title = "The effect of 1.25 MeV γ rays on Sm3+ doped lead fluoroborate glasses for reddish orange laser and radiation shielding applications",
abstract = "This research paper accentuates on the reddish orange light generation from Sm3+ ions doped lead fluoroborate glasses and the changes in the structural, optical, thermal, morphological and mechanical properties in the same glass samples after irradiation with gamma (γ) rays of 1.25 MeV energy and 150 kGy dose. The FTIR and the UV–VIS–NIR absorption spectra verified the generation of Non-Bridging Oxygens (NBOs) after γ irradiation. The Electron Paramagnetic Resonance (EPR) endorsed the presence of defect centers in the samples both before and after irradiation (with improved defects after irradiation). The stability (Hr) and hardness (H) of the samples improved (< 5{\%}) post irradiation, portrayed radiation resistant nature of the present titled glasses. The quality of the color emitted by the glass samples quantitatively determined by CIE chromaticity coordinates (x- ~ 0.6, y- ~ 0.39) and correlated color temperatures (CCT- ~ 1622 K), together proved the reddish orange prominence of the prepared glasses, both before and after irradiation. Sm4 (1.0 mol{\%} Sm2O3 doped lead fluoroborate) glass sample showed better quality results compared to other samples signifying their suitability in laser materials and photonic applications, extensively due to the prominent G5/24→H7/26 emission peak. Lifetime decay was schematically analyzed for Sm4 sample, signifying dipole-dipole interactions. The study of the glass samples pre/post gamma irradiation suggested the formation of color centers, and its candidature for reddish orange laser applications with the significant stability.",
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The effect of 1.25 MeV γ rays on Sm3+ doped lead fluoroborate glasses for reddish orange laser and radiation shielding applications. / Wagh, Akshatha; Hegde, Vinod; Dwaraka Viswanath, C. S.; Lakshminarayana, G.; Raviprakash, Y.; Kamath, Sudha D.

In: Journal of Luminescence, Vol. 199, 01.07.2018, p. 87-108.

Research output: Contribution to journalArticle

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T1 - The effect of 1.25 MeV γ rays on Sm3+ doped lead fluoroborate glasses for reddish orange laser and radiation shielding applications

AU - Wagh, Akshatha

AU - Hegde, Vinod

AU - Dwaraka Viswanath, C. S.

AU - Lakshminarayana, G.

AU - Raviprakash, Y.

AU - Kamath, Sudha D.

PY - 2018/7/1

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N2 - This research paper accentuates on the reddish orange light generation from Sm3+ ions doped lead fluoroborate glasses and the changes in the structural, optical, thermal, morphological and mechanical properties in the same glass samples after irradiation with gamma (γ) rays of 1.25 MeV energy and 150 kGy dose. The FTIR and the UV–VIS–NIR absorption spectra verified the generation of Non-Bridging Oxygens (NBOs) after γ irradiation. The Electron Paramagnetic Resonance (EPR) endorsed the presence of defect centers in the samples both before and after irradiation (with improved defects after irradiation). The stability (Hr) and hardness (H) of the samples improved (< 5%) post irradiation, portrayed radiation resistant nature of the present titled glasses. The quality of the color emitted by the glass samples quantitatively determined by CIE chromaticity coordinates (x- ~ 0.6, y- ~ 0.39) and correlated color temperatures (CCT- ~ 1622 K), together proved the reddish orange prominence of the prepared glasses, both before and after irradiation. Sm4 (1.0 mol% Sm2O3 doped lead fluoroborate) glass sample showed better quality results compared to other samples signifying their suitability in laser materials and photonic applications, extensively due to the prominent G5/24→H7/26 emission peak. Lifetime decay was schematically analyzed for Sm4 sample, signifying dipole-dipole interactions. The study of the glass samples pre/post gamma irradiation suggested the formation of color centers, and its candidature for reddish orange laser applications with the significant stability.

AB - This research paper accentuates on the reddish orange light generation from Sm3+ ions doped lead fluoroborate glasses and the changes in the structural, optical, thermal, morphological and mechanical properties in the same glass samples after irradiation with gamma (γ) rays of 1.25 MeV energy and 150 kGy dose. The FTIR and the UV–VIS–NIR absorption spectra verified the generation of Non-Bridging Oxygens (NBOs) after γ irradiation. The Electron Paramagnetic Resonance (EPR) endorsed the presence of defect centers in the samples both before and after irradiation (with improved defects after irradiation). The stability (Hr) and hardness (H) of the samples improved (< 5%) post irradiation, portrayed radiation resistant nature of the present titled glasses. The quality of the color emitted by the glass samples quantitatively determined by CIE chromaticity coordinates (x- ~ 0.6, y- ~ 0.39) and correlated color temperatures (CCT- ~ 1622 K), together proved the reddish orange prominence of the prepared glasses, both before and after irradiation. Sm4 (1.0 mol% Sm2O3 doped lead fluoroborate) glass sample showed better quality results compared to other samples signifying their suitability in laser materials and photonic applications, extensively due to the prominent G5/24→H7/26 emission peak. Lifetime decay was schematically analyzed for Sm4 sample, signifying dipole-dipole interactions. The study of the glass samples pre/post gamma irradiation suggested the formation of color centers, and its candidature for reddish orange laser applications with the significant stability.

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