Optical bleaching of Cr3+ luminescence in near stoichiometric LiNbO3 crystals codoped with MgO

T. P.J. Han; F. Jaque; L. Arizméndi; V. Bermúdez; A. Suchocki

doi:10.1016/j.jlumin.2004.01.010

Optical bleaching of Cr³⁺ luminescence in near stoichiometric LiNbO₃ crystals codoped with MgO

T. P.J. Han^*, F. Jaque, L. Arizméndi, V. Bermúdez, A. Suchocki

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

3 Citations (Scopus)

Abstract

The emission intensity of the R-line of Cr³⁺ ions in near stoichiometric LiNbO₃crystals codoped with MgO has been studied at a low temperature under excitation of the ⁴A ₂→⁴T₁ transition. The R-line emission intensity associated with Cr³⁺ ions in the Nb⁵⁺ site, [Cr]_Nb centre, was observed to decrease with the illumination time whereas the Cr³⁺ ions located in the Li site, [Cr]_Li centres, are optically stable. This selective bleaching is explained by considering the photoionization of Cr³⁺ ions in Nb⁵⁺ sites and the formation of Nb⁴⁺.

Original language	English
Pages (from-to)	55-58
Number of pages	4
Journal	Journal of Luminescence
Volume	108
Issue number	1-4
DOIs	https://doi.org/10.1016/j.jlumin.2004.01.010
Publication status	Published - Jun 2004
Externally published	Yes
Event	Proceedings of the Fourtheenth International Conference - Christchurch, New Zealand Duration: 3 Aug 2003 → 8 Aug 2003

Keywords

Cr
MgO
Soichiometric LiNbO
Spectroscopy

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10.1016/j.jlumin.2004.01.010

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@article{e2ec2198ac20460694593a79ade37737,

title = "Optical bleaching of Cr3+ luminescence in near stoichiometric LiNbO3 crystals codoped with MgO",

abstract = "The emission intensity of the R-line of Cr3+ ions in near stoichiometric LiNbO3crystals codoped with MgO has been studied at a low temperature under excitation of the 4A 2→4T1 transition. The R-line emission intensity associated with Cr3+ ions in the Nb5+ site, [Cr]Nb centre, was observed to decrease with the illumination time whereas the Cr3+ ions located in the Li site, [Cr]Li centres, are optically stable. This selective bleaching is explained by considering the photoionization of Cr3+ ions in Nb5+ sites and the formation of Nb4+.",

keywords = "Cr, MgO, Soichiometric LiNbO, Spectroscopy",

author = "Han, {T. P.J.} and F. Jaque and L. Arizm{\'e}ndi and V. Berm{\'u}dez and A. Suchocki",

year = "2004",

month = jun,

doi = "10.1016/j.jlumin.2004.01.010",

language = "English",

volume = "108",

pages = "55--58",

journal = "Journal of Luminescence",

issn = "0022-2313",

publisher = "Elsevier B.V.",

number = "1-4",

note = "Proceedings of the Fourtheenth International Conference ; Conference date: 03-08-2003 Through 08-08-2003",

}

TY - JOUR

T1 - Optical bleaching of Cr3+ luminescence in near stoichiometric LiNbO3 crystals codoped with MgO

AU - Han, T. P.J.

AU - Jaque, F.

AU - Arizméndi, L.

AU - Bermúdez, V.

AU - Suchocki, A.

PY - 2004/6

Y1 - 2004/6

N2 - The emission intensity of the R-line of Cr3+ ions in near stoichiometric LiNbO3crystals codoped with MgO has been studied at a low temperature under excitation of the 4A 2→4T1 transition. The R-line emission intensity associated with Cr3+ ions in the Nb5+ site, [Cr]Nb centre, was observed to decrease with the illumination time whereas the Cr3+ ions located in the Li site, [Cr]Li centres, are optically stable. This selective bleaching is explained by considering the photoionization of Cr3+ ions in Nb5+ sites and the formation of Nb4+.

AB - The emission intensity of the R-line of Cr3+ ions in near stoichiometric LiNbO3crystals codoped with MgO has been studied at a low temperature under excitation of the 4A 2→4T1 transition. The R-line emission intensity associated with Cr3+ ions in the Nb5+ site, [Cr]Nb centre, was observed to decrease with the illumination time whereas the Cr3+ ions located in the Li site, [Cr]Li centres, are optically stable. This selective bleaching is explained by considering the photoionization of Cr3+ ions in Nb5+ sites and the formation of Nb4+.

KW - Cr

KW - MgO

KW - Soichiometric LiNbO

KW - Spectroscopy

UR - http://www.scopus.com/inward/record.url?scp=2342486732&partnerID=8YFLogxK

U2 - 10.1016/j.jlumin.2004.01.010

DO - 10.1016/j.jlumin.2004.01.010

M3 - Conference article

AN - SCOPUS:2342486732

SN - 0022-2313

VL - 108

SP - 55

EP - 58

JO - Journal of Luminescence

JF - Journal of Luminescence

IS - 1-4

T2 - Proceedings of the Fourtheenth International Conference

Y2 - 3 August 2003 through 8 August 2003

ER -

Optical bleaching of Cr³⁺ luminescence in near stoichiometric LiNbO₃ crystals codoped with MgO

Abstract

Keywords

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