Selective optical bleaching of Cr3+ luminescence at low temperature in MgO codoped near stoichiometric LiNbO3:Cr crystals

P. J. Han; F. Jaque; L. Arizméndi; V. Bermúdez; A. Suchocki; A. Kaminska; S. Kobyakov

doi:10.1103/PhysRevB.68.132103

Selective optical bleaching of Cr³⁺ luminescence at low temperature in MgO codoped near stoichiometric LiNbO₃:Cr crystals

P. J. Han
, F. Jaque
, L. Arizméndi
, V. Bermúdez
, A. Suchocki
, A. Kaminska
, S. Kobyakov

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

7 Citations (Scopus)

Abstract

Selective R-line emission of the Cr³⁺ ions in near stoichiometric LiNbO₃ crystals codoped with MgO has been studied at low temperature under excitation into the [math equation] transition. The emission intensity of R lines associated with Cr³⁺ ions located in Nb⁵⁺ sites, [Cr]Nb centers, was observed to decrease with the illumination time, whereas those ascribed to other Cr³⁺ ions, such as those located in the Li site, [Cr]_Li centers, are optically stable. The selective bleaching is explained by considering the photoinization of Cr³⁺ ions in Nb sites and the formation of Nb₄₊ complexes (small polaron).

Original language	English
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	68
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevB.68.132103
Publication status	Published - 2003
Externally published	Yes

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title = "Selective optical bleaching of Cr3+ luminescence at low temperature in MgO codoped near stoichiometric LiNbO3:Cr crystals",

abstract = "Selective R-line emission of the Cr3+ ions in near stoichiometric LiNbO3 crystals codoped with MgO has been studied at low temperature under excitation into the [math equation] transition. The emission intensity of R lines associated with Cr3+ ions located in Nb5+ sites, [Cr]Nb centers, was observed to decrease with the illumination time, whereas those ascribed to other Cr3+ ions, such as those located in the Li site, [Cr]Li centers, are optically stable. The selective bleaching is explained by considering the photoinization of Cr3+ ions in Nb sites and the formation of Nb4+ complexes (small polaron).",

author = "Han, \{P. J.\} and F. Jaque and L. Arizm{\'e}ndi and V. Berm{\'u}dez and A. Suchocki and A. Kaminska and S. Kobyakov",

year = "2003",

doi = "10.1103/PhysRevB.68.132103",

language = "English",

volume = "68",

journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "1098-0121",

publisher = "American Physical Society",

number = "13",

}

TY - JOUR

T1 - Selective optical bleaching of Cr3+ luminescence at low temperature in MgO codoped near stoichiometric LiNbO3:Cr crystals

AU - Han, P. J.

AU - Jaque, F.

AU - Arizméndi, L.

AU - Bermúdez, V.

AU - Suchocki, A.

AU - Kaminska, A.

AU - Kobyakov, S.

PY - 2003

Y1 - 2003

N2 - Selective R-line emission of the Cr3+ ions in near stoichiometric LiNbO3 crystals codoped with MgO has been studied at low temperature under excitation into the [math equation] transition. The emission intensity of R lines associated with Cr3+ ions located in Nb5+ sites, [Cr]Nb centers, was observed to decrease with the illumination time, whereas those ascribed to other Cr3+ ions, such as those located in the Li site, [Cr]Li centers, are optically stable. The selective bleaching is explained by considering the photoinization of Cr3+ ions in Nb sites and the formation of Nb4+ complexes (small polaron).

AB - Selective R-line emission of the Cr3+ ions in near stoichiometric LiNbO3 crystals codoped with MgO has been studied at low temperature under excitation into the [math equation] transition. The emission intensity of R lines associated with Cr3+ ions located in Nb5+ sites, [Cr]Nb centers, was observed to decrease with the illumination time, whereas those ascribed to other Cr3+ ions, such as those located in the Li site, [Cr]Li centers, are optically stable. The selective bleaching is explained by considering the photoinization of Cr3+ ions in Nb sites and the formation of Nb4+ complexes (small polaron).

UR - https://www.scopus.com/pages/publications/0344009612

U2 - 10.1103/PhysRevB.68.132103

DO - 10.1103/PhysRevB.68.132103

M3 - Article

AN - SCOPUS:0344009612

SN - 1098-0121

VL - 68

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 13

ER -

Selective optical bleaching of Cr³⁺ luminescence at low temperature in MgO codoped near stoichiometric LiNbO₃:Cr crystals

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