Spectroscopic studies of KGd(WO4)2:Ho3+ single crystals

D. Kasprowicz; M. G. Brik; A. Majchrowski; E. Michalski; A. Biadasz

doi:10.1016/j.jallcom.2010.11.053

Spectroscopic studies of KGd(WO₄)₂:Ho³⁺ single crystals

D. Kasprowicz
, M. G. Brik
, A. Majchrowski
, E. Michalski
, A. Biadasz

Poznań University of Technology
University of Tartu
Military University of Technology Warsaw

Zinātniskās darbības rezultāts: Devums žurnālam › Zinātniskais raksts (žurnālā) › koleģiāli recenzēts

9 Atsauces (Scopus)

Kopsavilkums

Single crystals of KGd(WO₄)₂ doped with Ho ³⁺ ions were grown by the top seeded solution growth method. Polarized room temperature absorption spectra were analyzed by means of the conventional Judd-Ofelt theory taking into account strong dependence of the host refractive index on the wavelength. In addition to the intensity parameters Ω₂, Ω₄, Ω₆, the branching ratios and radiative lifetimes were estimated for all possible transitions in the studied spectral region. The transitions predicted by the phenomenological model as potential transitions for laser applications are discussed. Emission spectra in the green, red, and near-infrared spectral regions were recorded for different excitation wavelengths. Comparison with spectroscopic properties of Ho³⁺ ion in other crystals is discussed.

Oriģinālvaloda	Angļu
Lapas (no-līdz)	1430-1435
Lapu skaits	6
Žurnāls	Journal of Alloys and Compounds
Sējums	509
Izdevuma numurs	5
DOIs	https://doi.org/10.1016/j.jallcom.2010.11.053
Publikācijas statuss	Publicēts - 3 febr. 2011
Ārēji publicēts	Jā

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abstract = "Single crystals of KGd(WO4)2 doped with Ho 3+ ions were grown by the top seeded solution growth method. Polarized room temperature absorption spectra were analyzed by means of the conventional Judd-Ofelt theory taking into account strong dependence of the host refractive index on the wavelength. In addition to the intensity parameters Ω2, Ω4, Ω6, the branching ratios and radiative lifetimes were estimated for all possible transitions in the studied spectral region. The transitions predicted by the phenomenological model as potential transitions for laser applications are discussed. Emission spectra in the green, red, and near-infrared spectral regions were recorded for different excitation wavelengths. Comparison with spectroscopic properties of Ho3+ ion in other crystals is discussed.",

keywords = "Absorption and luminescence spectra, Judd-Ofelt theory, Rare-earth doped crystals",

author = "D. Kasprowicz and Brik, \{M. G.\} and A. Majchrowski and E. Michalski and A. Biadasz",

year = "2011",

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doi = "10.1016/j.jallcom.2010.11.053",

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AU - Kasprowicz, D.

AU - Brik, M. G.

AU - Majchrowski, A.

AU - Michalski, E.

AU - Biadasz, A.

PY - 2011/2/3

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N2 - Single crystals of KGd(WO4)2 doped with Ho 3+ ions were grown by the top seeded solution growth method. Polarized room temperature absorption spectra were analyzed by means of the conventional Judd-Ofelt theory taking into account strong dependence of the host refractive index on the wavelength. In addition to the intensity parameters Ω2, Ω4, Ω6, the branching ratios and radiative lifetimes were estimated for all possible transitions in the studied spectral region. The transitions predicted by the phenomenological model as potential transitions for laser applications are discussed. Emission spectra in the green, red, and near-infrared spectral regions were recorded for different excitation wavelengths. Comparison with spectroscopic properties of Ho3+ ion in other crystals is discussed.

AB - Single crystals of KGd(WO4)2 doped with Ho 3+ ions were grown by the top seeded solution growth method. Polarized room temperature absorption spectra were analyzed by means of the conventional Judd-Ofelt theory taking into account strong dependence of the host refractive index on the wavelength. In addition to the intensity parameters Ω2, Ω4, Ω6, the branching ratios and radiative lifetimes were estimated for all possible transitions in the studied spectral region. The transitions predicted by the phenomenological model as potential transitions for laser applications are discussed. Emission spectra in the green, red, and near-infrared spectral regions were recorded for different excitation wavelengths. Comparison with spectroscopic properties of Ho3+ ion in other crystals is discussed.

KW - Absorption and luminescence spectra

KW - Judd-Ofelt theory

KW - Rare-earth doped crystals

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