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Title: Structural and luminescence studies of Ho{sup 3+}-doped zinc-aluminium-sodium-phosphate (ZANP) glasses

Abstract

Trivalent holmium doped zinc-aluminium-sodium-phosphate (ZANP) glasses were prepared by conventional melt-quenching technique and characterized for their structural and luminescence properties. The amorphous nature, elemental analysis and thermal stability of the glasses were studied by using X-ray diffraction, energy dispersive spectrum and differential scanning calorimetry analysis, respectively. The absorption and fluorescence spectra have been recorded at room temperature. Based on the absorption spectra, the Judd-Ofelt parameters and radiative parameters such as spontaneous transition probabilities (A{sub R}), branching ratios (β{sub R}), radiative lifetimes (τ{sub R}) were calculated and discussed. From the emission spectra emission peak positions (λ{sub P}), effective bandwidths (Δλ{sub eff}) and stimulated emission cross-sections (σ{sub P}) were calculated for the observed emission transitions,{sup 5}S{sub 2} ({sup 5}F{sub 4}→{sup 5}I{sub 8}) and {sup 5}F{sub 5}→{sup 5}I{sub 8} in all the glass samples. The stimulated emission cross-section is higher for ZANPHo10 glass matrix and so it may be useful for laser excitation.

Authors:
; ;  [1]
  1. Department of Physics, Sri Venkateswara University, Tirupati-517502 (India)
Publication Date:
OSTI Identifier:
22490366
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1665; Journal Issue: 1; Conference: 59. DAE solid state physics symposium 2014, Tamilnadu (India), 16-20 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABSORPTION SPECTRA; ALUMINIUM COMPOUNDS; BRANCHING RATIO; CALORIMETRY; CROSS SECTIONS; DOPED MATERIALS; EMISSION SPECTRA; EXCITATION; FLUORESCENCE SPECTROSCOPY; GLASS; HOLMIUM IONS; LIFETIME; LUMINESCENCE; PROBABILITY; SODIUM PHOSPHATES; STIMULATED EMISSION; X-RAY DIFFRACTION; X-RAY SPECTROSCOPY; ZINC COMPOUNDS

Citation Formats

Brahmachary, K., Rajesh, D., and Ratnakaram, Y. C., E-mail: ratnakaramsvu@gmail.com. Structural and luminescence studies of Ho{sup 3+}-doped zinc-aluminium-sodium-phosphate (ZANP) glasses. United States: N. p., 2015. Web. doi:10.1063/1.4917873.
Brahmachary, K., Rajesh, D., & Ratnakaram, Y. C., E-mail: ratnakaramsvu@gmail.com. Structural and luminescence studies of Ho{sup 3+}-doped zinc-aluminium-sodium-phosphate (ZANP) glasses. United States. doi:10.1063/1.4917873.
Brahmachary, K., Rajesh, D., and Ratnakaram, Y. C., E-mail: ratnakaramsvu@gmail.com. Wed . "Structural and luminescence studies of Ho{sup 3+}-doped zinc-aluminium-sodium-phosphate (ZANP) glasses". United States. doi:10.1063/1.4917873.
@article{osti_22490366,
title = {Structural and luminescence studies of Ho{sup 3+}-doped zinc-aluminium-sodium-phosphate (ZANP) glasses},
author = {Brahmachary, K. and Rajesh, D. and Ratnakaram, Y. C., E-mail: ratnakaramsvu@gmail.com},
abstractNote = {Trivalent holmium doped zinc-aluminium-sodium-phosphate (ZANP) glasses were prepared by conventional melt-quenching technique and characterized for their structural and luminescence properties. The amorphous nature, elemental analysis and thermal stability of the glasses were studied by using X-ray diffraction, energy dispersive spectrum and differential scanning calorimetry analysis, respectively. The absorption and fluorescence spectra have been recorded at room temperature. Based on the absorption spectra, the Judd-Ofelt parameters and radiative parameters such as spontaneous transition probabilities (A{sub R}), branching ratios (β{sub R}), radiative lifetimes (τ{sub R}) were calculated and discussed. From the emission spectra emission peak positions (λ{sub P}), effective bandwidths (Δλ{sub eff}) and stimulated emission cross-sections (σ{sub P}) were calculated for the observed emission transitions,{sup 5}S{sub 2} ({sup 5}F{sub 4}→{sup 5}I{sub 8}) and {sup 5}F{sub 5}→{sup 5}I{sub 8} in all the glass samples. The stimulated emission cross-section is higher for ZANPHo10 glass matrix and so it may be useful for laser excitation.},
doi = {10.1063/1.4917873},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1665,
place = {United States},
year = {2015},
month = {6}
}