Broad-band luminescence in MgO:Cr3+: relaxed level and emission processes

28 January 1978

journal article
Published by IOP Publishing in Journal of Physics C: Solid State Physics

Vol. 11 (2) , 439-448
https://doi.org/10.1088/0022-3719/11/2/026

Abstract

The influence of the heat treatment and of the exciting wavelength, the correlation between the excitation and luminescence polarisations on the ⁴T₂ to ⁴A₂ no-phonon lines and broad-band emission of MgO:Cr³⁺ were studied. The results show that emission comes from only one level but is due to two processes, of which one corresponds to an electric dipole transition allowed in the C_2v symmetry and the other corresponds to a transition which is forbidden, but assisted by vibrations.

Keywords

HEAT TREATMENT

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