Room-temperature near infrared emission and green up-conversion in PbMoO 4:Er 3+ crystals

Near infrared emission at ∼1550 nm and green up-conversion emission at ∼550 nm and ∼520 nm in PbMoO 4:Er 3+ crystals as a result of the Er 3+ 4 f−4 f transitions have been observed under 980 nm excitation. The PL emission spectra and dependences of the PL intensities as function of the excitation po...

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Bibliographic Details
Published inOptical materials Vol. 32; no. 9; pp. 1046 - 1049
Main Authors Aghamalyan, N.R., Demirkhanyan, G.G., Hovsepyan, R.K., Kostanyan, R.B., Zargaryan, D.G.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 2010
Subjects
Erbium
Infrared luminescence
PbMoO 4
Up-conversion
PbMoO 4
Infrared luminescence
Erbium
Up-conversion
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Summary:Near infrared emission at ∼1550 nm and green up-conversion emission at ∼550 nm and ∼520 nm in PbMoO 4:Er 3+ crystals as a result of the Er 3+ 4 f−4 f transitions have been observed under 980 nm excitation. The PL emission spectra and dependences of the PL intensities as function of the excitation power are provided to investigate the up-conversion mechanism. The up-conversion mechanism based on the double-stage excited-state absorption (ESA) are suggested and discussed.
ISSN:0925-3467
1873-1252
DOI:10.1016/j.optmat.2010.02.028