Time evolution of the fluorescence in EuP5O14 crystals

I. Laulicht; I. Pe'er

doi:10.1016/0022-2313(81)90227-1

Time evolution of the fluorescence in EuP₅O₁₄ crystals

I. Laulicht
, I. Pe'er

Department of Physics - at Bar-Ilan University

Bar-Ilan University

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Time resolved laser induced fluorescence in EuP₅O₁₄ crystals reveals new emission bands in the 580-700 nm region. These bands are assigned as the ⁵D₁→⁷F₃, ⁷F₄, ⁷F₅, ⁷F₆ emission bands, which are predicted by theory to account for a large proportion of the ⁵D₁ fluorescence intensity, but have never been seen before due to their masking by the much stronger ⁵D₀→⁷F₂, ⁷F₁ emission bands or due to their weakness. Branching ratios and lifetimes of the ⁵D₀ and ⁵D₁ Stark manifolds have been measured. The experimental branching ratios disagree sometimes with Judd-Ofelt calculation by a factor of two. The disagreement for these ⁵D₁ values may partly be explained by selective cooperative relaxation processes. The ion pair emission process is particularly attractive.

Original language	English
Pages (from-to)	87-90
Number of pages	4
Journal	Journal of Luminescence
Volume	24-25
Issue number	PART 1
DOIs	https://doi.org/10.1016/0022-2313(81)90227-1
State	Published - Nov 1981

Bibliographical note

Funding Information:
** Paetially supported by the Israel Ministry of Trade, Industry and Tourism.

Funding

** Paetially supported by the Israel Ministry of Trade, Industry and Tourism.

Funders
Israel Ministry of Trade, Industry and Tourism

Access to Document

10.1016/0022-2313(81)90227-1

Cite this

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title = "Time evolution of the fluorescence in EuP5O14 crystals",

abstract = "Time resolved laser induced fluorescence in EuP5O14 crystals reveals new emission bands in the 580-700 nm region. These bands are assigned as the 5D1→7F3, 7F4, 7F5, 7F6 emission bands, which are predicted by theory to account for a large proportion of the 5D1 fluorescence intensity, but have never been seen before due to their masking by the much stronger 5D0→7F2, 7F1 emission bands or due to their weakness. Branching ratios and lifetimes of the 5D0 and 5D1 Stark manifolds have been measured. The experimental branching ratios disagree sometimes with Judd-Ofelt calculation by a factor of two. The disagreement for these 5D1 values may partly be explained by selective cooperative relaxation processes. The ion pair emission process is particularly attractive.",

author = "I. Laulicht and I. Pe'er",

note = "Funding Information: ** Paetially supported by the Israel Ministry of Trade, Industry and Tourism.",

year = "1981",

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doi = "10.1016/0022-2313(81)90227-1",

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AU - Laulicht, I.

AU - Pe'er, I.

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PY - 1981/11

Y1 - 1981/11

N2 - Time resolved laser induced fluorescence in EuP5O14 crystals reveals new emission bands in the 580-700 nm region. These bands are assigned as the 5D1→7F3, 7F4, 7F5, 7F6 emission bands, which are predicted by theory to account for a large proportion of the 5D1 fluorescence intensity, but have never been seen before due to their masking by the much stronger 5D0→7F2, 7F1 emission bands or due to their weakness. Branching ratios and lifetimes of the 5D0 and 5D1 Stark manifolds have been measured. The experimental branching ratios disagree sometimes with Judd-Ofelt calculation by a factor of two. The disagreement for these 5D1 values may partly be explained by selective cooperative relaxation processes. The ion pair emission process is particularly attractive.

AB - Time resolved laser induced fluorescence in EuP5O14 crystals reveals new emission bands in the 580-700 nm region. These bands are assigned as the 5D1→7F3, 7F4, 7F5, 7F6 emission bands, which are predicted by theory to account for a large proportion of the 5D1 fluorescence intensity, but have never been seen before due to their masking by the much stronger 5D0→7F2, 7F1 emission bands or due to their weakness. Branching ratios and lifetimes of the 5D0 and 5D1 Stark manifolds have been measured. The experimental branching ratios disagree sometimes with Judd-Ofelt calculation by a factor of two. The disagreement for these 5D1 values may partly be explained by selective cooperative relaxation processes. The ion pair emission process is particularly attractive.

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