Optical analysis of samarium doped sodium bismuth silicate glass

V. Thomas, R. G S Sofin, M. Allen, H. Thomas, P. R. Biju, G. Jose, N. V. Unnikrishnan

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Samarium doped sodium bismuth silicate glass was synthesized using the melt quenching method. Detailed optical spectroscopic studies of the glassy material were carried out in the UV–Vis-NIR spectral range. Using the optical absorption spectra Judd-Ofelt (JO) parameters are derived. The calculated values of the JO parameters are utilized in evaluating the various radiative parameters such as electric dipole line strengths (Sed), radiative transition probabilities (Arad), radiative lifetimes (τrad), fluorescence branching ratios (β) and the integrated absorption cross- sections (σa) for stimulated emission from various excited states of Sm3 +‡ ion. The principal fluorescence transitions are identified by recording the fluorescence spectrum. Our analysis revealed that the novel glassy system has the optimum values for the key parameters viz. spectroscopic quality factor, optical gain, stimulated emission cross section and quantum efficiency, which are required for a high performance optical amplifier. Calculated chromaticity co-ordinates (0.61, 0.38) also confirm its application potential in display devices.

Original languageEnglish
Pages (from-to)144-148
Number of pages5
JournalSpectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
Volume171
DOIs
Publication statusPublished - Jan 15 2017

Fingerprint

Samarium
Silicates
Bismuth
samarium
bismuth
Glass
silicates
Stimulated emission
Fluorescence
Sodium
sodium
glass
stimulated emission
fluorescence
Optical gain
Light amplifiers
Quantum efficiency
Excited states
Light absorption
Absorption spectra

Keywords

  • A. Glasses
  • D. Optical properties

ASJC Scopus subject areas

  • Analytical Chemistry
  • Medicine(all)
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Spectroscopy

Cite this

Optical analysis of samarium doped sodium bismuth silicate glass. / Thomas, V.; Sofin, R. G S; Allen, M.; Thomas, H.; Biju, P. R.; Jose, G.; Unnikrishnan, N. V.

In: Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, Vol. 171, 15.01.2017, p. 144-148.

Research output: Contribution to journalArticle

Thomas, V. ; Sofin, R. G S ; Allen, M. ; Thomas, H. ; Biju, P. R. ; Jose, G. ; Unnikrishnan, N. V. / Optical analysis of samarium doped sodium bismuth silicate glass. In: Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy. 2017 ; Vol. 171. pp. 144-148.
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AU - Jose, G.

AU - Unnikrishnan, N. V.

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