Temperature dependence of the antistokes luminescence of holmium in yttrium fluoride

This paper analyzes the effect of temperature on the intensity of the green and red luminescence bands of Ho/sup 3 +/ ions in yttrium fluoride excited in the absorption band of ytterbium. The relative intensity of the two luminescence components was measured in the temperature range of 77-400/sup 0/...

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Veröffentlicht in:	J. Appl. Spectrosc. (Engl. Transl.); (United States) 1987-03, Vol.46 (3), p.270-272
Hauptverfasser:	Kozhan, T. M., Kuznetsova, V. V., Reut, T. A., Sergeev, I. I., Khomenko, V. S.
Format:	Artikel
Sprache:	eng
Schlagworte:	360104 - Metals & Alloys- Physical Properties COMPUTERIZED SIMULATION ELEMENTS EMISSION SPECTRA ENERGY LEVELS ENERGY TRANSFER ENERGY-LEVEL TRANSITIONS FLUORIDES FLUORINE COMPOUNDS HALIDES HALOGEN COMPOUNDS HOLMIUM HOLMIUM COMPOUNDS LASER MATERIALS LASERS LINE WIDTHS LUMINESCENCE MATERIALS MATERIALS SCIENCE METALS OPTICAL PUMPING PHONONS PHOTOLUMINESCENCE PUMPING QUASI PARTICLES RARE EARTH COMPOUNDS RARE EARTHS RELAXATION SIMULATION SOLID STATE LASERS SPECTRA STOKES PARAMETERS TEMPERATURE DEPENDENCE TEMPERATURE EFFECTS TRANSITION ELEMENT COMPOUNDS VALENCE YTTERBIUM YTTRIUM COMPOUNDS YTTRIUM FLUORIDES
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Beschreibung
Zusammenfassung:	This paper analyzes the effect of temperature on the intensity of the green and red luminescence bands of Ho/sup 3 +/ ions in yttrium fluoride excited in the absorption band of ytterbium. The relative intensity of the two luminescence components was measured in the temperature range of 77-400/sup 0/K by integrating the emission spectra in the 0.54- and 0.65-..mu..m regions. The population of the /sup 5/S/sub 2/ and /sup 5/F/sub 3/ levels of Ho/sup 3 +/ were calculated on a computer from the temperature-dependent variation of the rates of many-phonon nonradiative relaxation and electronic excitation energy transfer.
ISSN:	0021-9037 1573-8647
DOI:	10.1007/BF00660212