Transition intensity analysis and emission properties of Eu3+: Bi2ZnOB2O6 acentric biaxial single crystal

Marcin Piotr Kaczkan , Marcin Kowalczyk , Sławomir Szostak , Andrzej Majchrowski , Michał Malinowski

Abstract

Optical absorption, excitation and emission spectra of trivalent europium (Eu3+) ions in Bi2ZnOB2O6 nonlinear single crystal obtained by the Kyropoulos method were investigated. Strong, orange-red emissions of Eu3+ centered at 592 and 615 nm originate mainly from the 5D0 →7F1 and 7F2 transitions, respectively. Judd-Ofelt intensity parameters for f-f transitions were derived from the room temperature (300 K) emission spectra and were used to calculate the radiative transition rates (AR), lifetimes (τR) and branching ratios β for 5D0 excited state of Eu3+. The calculated values of τR and β were compared with the measured values for 5D0 level. The 5D0 fluorescence decay in 0.5 %Eu3+:Bi2ZnOB2O6 was exponential with time constant of 1.1 ms at room temperature. The stimulated emission cross-sections σ were also evaluated for the 5D0 → 7FJ transitions for the first time in this system. We also report on laser site selective spectroscopy of a Eu3+: Bi2ZnOB2O6 confirming the Eu3+ distribution into two sites. The site assignments of Eu3+ ions were discussed on the base of both optical spectroscopy results and structural analysis.
Author Marcin Piotr Kaczkan (FEIT / MO)
Marcin Piotr Kaczkan,,
- The Institute of Microelectronics and Optoelectronics
, Marcin Kowalczyk (FEIT / MO)
Marcin Kowalczyk,,
- The Institute of Microelectronics and Optoelectronics
, Sławomir Szostak (FEIT / MO)
Sławomir Szostak,,
- The Institute of Microelectronics and Optoelectronics
, Andrzej Majchrowski - Wojskowa Akademia Techniczna im. Jarosława Dąbrowskiego (WAT) [Wojskowa Akademia Techniczna]
Andrzej Majchrowski,,
-
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, Michał Malinowski (FEIT / MO)
Michał Malinowski,,
- The Institute of Microelectronics and Optoelectronics
Journal seriesOptical Materials, ISSN 0925-3467, e-ISSN 1873-1252
Issue year2020
Vol107
NoSeptember
Pages1-7
Publication size in sheets0.3
Article number110045
Keywords in EnglishRare-earth ions, Eu ion, Nonlinear optical properties, BiZnOBO crystal, Judd-ofelt analysis, Laser spectroscopy
ASJC Classification1700 General Computer Science; 2208 Electrical and Electronic Engineering; 2504 Electronic, Optical and Magnetic Materials; 3107 Atomic and Molecular Physics, and Optics
DOIDOI:10.1016/j.optmat.2020.110045
URL http://www.sciencedirect.com/science/article/pii/S0925346720303888
Languageen angielski
File
1-s2.0-S0925346720303888-main.pdf 1.1 MB
Score (nominal)70
Score sourcejournalList
ScoreMinisterial score = 70.0, 15-08-2020, ArticleFromJournal
Publication indicators Scopus Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.055; WoS Impact Factor: 2018 = 2.687 (2) - 2018=2.48 (5)
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