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

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

Near infrared emission at [not, vert, similar]1550 nm and green up-conversion emission at [not, vert, similar]550 nm and [not, vert, similar]520 nm in PbMoO sub(4):Er super(3+) crystals as a result of the Er super(3+) 4f-4f transitions have been observed under 980 nm excitation. The PL emission spec...

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Veröffentlicht in:Optical materials 2010-07, Vol.32 (9), p.1046-1049
Hauptverfasser: Aghamalyan, N R, Demirkhanyan, G G, Hovsepyan, R K, Kostanyan, R B, Zargaryan, D G
Format: Artikel
Sprache:eng
Schlagworte:
Crystals
Emission
Emission spectra
Excitation
Infrared
Optical materials
Upconversion
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Zusammenfassung:Near infrared emission at [not, vert, similar]1550 nm and green up-conversion emission at [not, vert, similar]550 nm and [not, vert, similar]520 nm in PbMoO sub(4):Er super(3+) crystals as a result of the Er super(3+) 4f-4f 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
DOI:10.1016/j.optmat.2010.02.028