Optical spectroscopy of Cr3+ ions in stoichiometric LiNbO3 crystals and co-doped with MgO

Jaque, F. and Han, T.P.J. and Bermuudez, V. and Dieguez, E. (2003) Optical spectroscopy of Cr3+ ions in stoichiometric LiNbO3 crystals and co-doped with MgO. Journal of Luminescence, 102-103. pp. 253-260. ISSN 0022-2313 (https://doi.org/10.1016/S0022-2313(02)00510-0)

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Abstract

The optical spectroscopy of Cr3+ ions in near stoichiometric LiNbO3 crystals, 'pure' and co-doped with MgO, has been investigated. In the near stoichiometric LiNbO3:Cr (0.2%) optical absorption and emission spectra show the usual features of broad bands and narrow lines typical of congruent samples with the an additional of a narrow emission lines centred at 738 nm and has been ascribed to the zero-phonon line of the 4T24A2 transition. The concentration equilibrium between the two type of centres is strongly displaced towards the [Cr]Nb centre permitting thus to obtain with accuracy the parameters of the broad bands. The R-lines associated with the [Cr]Nb centre is only observable in low-temperature emission spectrum. The presence of Fano anti-resonance lines has been observed to be more pronounced in the near stoichiometric than in congruent samples.

ORCID iDs

Jaque, F., Han, T.P.J. ORCID logoORCID: https://orcid.org/0000-0002-2303-6861, Bermuudez, V. and Dieguez, E.;
  • Item type:Article
    ID code:50966
    Dates:
    Date
    Event
    May 2003
    Published
    22 February 2003
    Published Online
    Keywords:chromium, impurity absorption spectra, light absorption, lithium compounds, magnesium compounds, phonon spectra, photoluminescence, spectral line breadth, stoichiometry, time resolved spectra, Physics, Biochemistry, Biophysics, Atomic and Molecular Physics, and Optics, Chemistry(all), Condensed Matter Physics
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:09 Jan 2015 11:47
    Last modified:19 Mar 2023 04:03
    URI:https://strathprints.strath.ac.uk/id/eprint/50966
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