Photoluminescence of Er3+ ions in Bi2TeO5 single crystals

R. Sosa, I. Földvári, A. Watterich, A. Munoz, R. S. Maillard, G. Kugel

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Optical absorption and emission spectra of Er3+ ions in Bi 2TeO5 single crystals have been studied at room temperature. Besides the 2H11/124I 15/2, 4S3/24I 15/2, and 4F9/24I 15/2, emission, that were typically strong under excitation to higher energy manifolds than the actual emission, the 4S 3/24I3/2 luminescence was also intense. The visible transitions were assigned, and Judd-Ofelt calculation was performed by fitting the experimental data set. The calculated Ω t, Judd-Ofelt intensity parameters (Ω2 = 6.98 ± 0.57 × 10-21cm2; Ω4 = 1. 74 ± 0.05 × 10-21 cm2; Ω6 = 1.23 ± 0.12 × 10-21 cm2) were consistent with the Bi2TeO5 crystal structure and the Er 3+ substitution for Bi sites. The radiative transition probabilities, the branching ratios and the radiative lifetime of the transitions of Er 3+ ions in bismuth tellurite were also calculated. The results are analyzed for potential application of Bi2TeO5:Er 3+ as a new laser material.

Original languageEnglish
Pages (from-to)25-35
Number of pages11
JournalJournal of Luminescence
Volume111
Issue number1-2
DOIs
Publication statusPublished - Jan 1 2005

Fingerprint

Photoluminescence
Single crystals
Ions
photoluminescence
Bismuth
laser materials
single crystals
radiative lifetime
Electron transitions
Luminescence
transition probabilities
Light absorption
bismuth
light emission
optical spectrum
ions
emission spectra
Lasers
optical absorption
Substitution reactions

Keywords

  • Er-luminescence
  • Judd-Ofelt Theory
  • Laser material

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Atomic and Molecular Physics, and Optics

Cite this

Photoluminescence of Er3+ ions in Bi2TeO5 single crystals. / Sosa, R.; Földvári, I.; Watterich, A.; Munoz, A.; Maillard, R. S.; Kugel, G.

In: Journal of Luminescence, Vol. 111, No. 1-2, 01.01.2005, p. 25-35.

Research output: Contribution to journalArticle

Sosa, R. ; Földvári, I. ; Watterich, A. ; Munoz, A. ; Maillard, R. S. ; Kugel, G. / Photoluminescence of Er3+ ions in Bi2TeO5 single crystals. In: Journal of Luminescence. 2005 ; Vol. 111, No. 1-2. pp. 25-35.
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AU - Kugel, G.

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AB - Optical absorption and emission spectra of Er3+ ions in Bi 2TeO5 single crystals have been studied at room temperature. Besides the 2H11/12 → 4I 15/2, 4S3/2 → 4I 15/2, and 4F9/2 → 4I 15/2, emission, that were typically strong under excitation to higher energy manifolds than the actual emission, the 4S 3/2 → 4I3/2 luminescence was also intense. The visible transitions were assigned, and Judd-Ofelt calculation was performed by fitting the experimental data set. The calculated Ω t, Judd-Ofelt intensity parameters (Ω2 = 6.98 ± 0.57 × 10-21cm2; Ω4 = 1. 74 ± 0.05 × 10-21 cm2; Ω6 = 1.23 ± 0.12 × 10-21 cm2) were consistent with the Bi2TeO5 crystal structure and the Er 3+ substitution for Bi sites. The radiative transition probabilities, the branching ratios and the radiative lifetime of the transitions of Er 3+ ions in bismuth tellurite were also calculated. The results are analyzed for potential application of Bi2TeO5:Er 3+ as a new laser material.

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