Luminescence of the Cr3+ R-lines in pure and MgO co-doped near stoichiometric LiNbO3:Cr crystals

T.P.J. Han; F. Jaque; V. Bermudez; E. Dieguez

doi:10.1016/S0009-2614(02)02028-6

Luminescence of the Cr3+ R-lines in pure and MgO co-doped near stoichiometric LiNbO3:Cr crystals

T.P.J. Han, F. Jaque, V. Bermudez, E. Dieguez

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Abstract

The photoluminescence property of pure and MgO co-doped near stoichiometric LiNbO3:Cr crystals has been investigated. It has been found that the presence of low Mg ion content in the crystals induces the coexistence of two types of Cr3þ sites; Cr3þ ion substituting Liþ and Nb5þ sites. In MgO co-doped samples, four narrow emission bands have been found and three of them are correlated with the broad absorption bands associated to the Cr3þ ions located in Nb5þ site (½CrNb centres). The observation of the zero-phonon line at 13 540 cm1 only in pure LiNbO3:Cr crystals of near stoichiometric composition suggests it could be used as a probe to monitor the composition of LiNbO3 crystals.

Original language	English
Pages (from-to)	519-524
Number of pages	5
Journal	Chemical Physics Letters
Volume	369
Issue number	2003
DOIs	https://doi.org/10.1016/S0009-2614(02)02028-6
Publication status	Published - 28 Feb 2003

Keywords

photoluminescence
crystals
nanoscience

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10.1016/S0009-2614(02)02028-6

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title = "Luminescence of the Cr3+ R-lines in pure and MgO co-doped near stoichiometric LiNbO3:Cr crystals",

abstract = "The photoluminescence property of pure and MgO co-doped near stoichiometric LiNbO3:Cr crystals has been investigated. It has been found that the presence of low Mg ion content in the crystals induces the coexistence of two types of Cr3{\th} sites; Cr3{\th} ion substituting Li{\th} and Nb5{\th} sites. In MgO co-doped samples, four narrow emission bands have been found and three of them are correlated with the broad absorption bands associated to the Cr3{\th} ions located in Nb5{\th} site (½CrNb centres). The observation of the zero-phonon line at 13 540 cm1 only in pure LiNbO3:Cr crystals of near stoichiometric composition suggests it could be used as a probe to monitor the composition of LiNbO3 crystals.",

keywords = "photoluminescence, crystals, nanoscience",

author = "T.P.J. Han and F. Jaque and V. Bermudez and E. Dieguez",

year = "2003",

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doi = "10.1016/S0009-2614(02)02028-6",

language = "English",

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TY - JOUR

T1 - Luminescence of the Cr3+ R-lines in pure and MgO co-doped near stoichiometric LiNbO3:Cr crystals

AU - Han, T.P.J.

AU - Jaque, F.

AU - Bermudez, V.

AU - Dieguez, E.

PY - 2003/2/28

Y1 - 2003/2/28

N2 - The photoluminescence property of pure and MgO co-doped near stoichiometric LiNbO3:Cr crystals has been investigated. It has been found that the presence of low Mg ion content in the crystals induces the coexistence of two types of Cr3þ sites; Cr3þ ion substituting Liþ and Nb5þ sites. In MgO co-doped samples, four narrow emission bands have been found and three of them are correlated with the broad absorption bands associated to the Cr3þ ions located in Nb5þ site (½CrNb centres). The observation of the zero-phonon line at 13 540 cm1 only in pure LiNbO3:Cr crystals of near stoichiometric composition suggests it could be used as a probe to monitor the composition of LiNbO3 crystals.

AB - The photoluminescence property of pure and MgO co-doped near stoichiometric LiNbO3:Cr crystals has been investigated. It has been found that the presence of low Mg ion content in the crystals induces the coexistence of two types of Cr3þ sites; Cr3þ ion substituting Liþ and Nb5þ sites. In MgO co-doped samples, four narrow emission bands have been found and three of them are correlated with the broad absorption bands associated to the Cr3þ ions located in Nb5þ site (½CrNb centres). The observation of the zero-phonon line at 13 540 cm1 only in pure LiNbO3:Cr crystals of near stoichiometric composition suggests it could be used as a probe to monitor the composition of LiNbO3 crystals.

KW - photoluminescence

KW - crystals

KW - nanoscience

UR - http://www.sciencedirect.com/science/journal/00092614

UR - http://dx.doi.org/10.1016/S0009-2614(02)02028-6

U2 - 10.1016/S0009-2614(02)02028-6

DO - 10.1016/S0009-2614(02)02028-6

M3 - Article

SN - 0009-2614

VL - 369

SP - 519

EP - 524

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 2003

ER -

Luminescence of the Cr3+ R-lines in pure and MgO co-doped near stoichiometric LiNbO3:Cr crystals

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Keywords

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