Spectroscopic properties of Tm,Ho:CaYAlO sub(4) single crystal

A Tm,Ho:CaYAlO sub(4) single crystal was grown using the Czochralski (CZ) method. The absorption spectra, the fluorescence spectrum around 2 mu m, the upconversion spectrum and energy-transfer (ET) schemes between Tm super(3+) ions and Ho super(3+) ions have been studied. The crystal boule was free...

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Bibliographic Details
Published in:Crystal research and technology (1979) 2014-07, Vol.49 (7), p.446-451
Main Authors: Di, J Q, Zhou, D H, Xu, X D, Xia, C T, Gao, W, Zheng, H R, Sai, Q L, Mou, F, Xu, J
Format: Article
Language:English
Subjects:
Absorption spectra
Bandwidth
Crystals
Emission
Fluorescence
Polarization
Single crystals
Upconversion
Online Access:Get full text
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Summary:A Tm,Ho:CaYAlO sub(4) single crystal was grown using the Czochralski (CZ) method. The absorption spectra, the fluorescence spectrum around 2 mu m, the upconversion spectrum and energy-transfer (ET) schemes between Tm super(3+) ions and Ho super(3+) ions have been studied. The crystal boule was free from cracks, inclusions and scattering centers. The broad FWHM of the 797-nm absorption band (with E//c polarization is 19 nm and with E//a polarization is 18 nm), the large emission bandwidth (about 600 nm) and the intense ET from Tm super(3+) ions to Ho super(3+) ions make Tm,Ho:CaYAlO sub(4) a promising media for tunable and ultrashort pulses. Tm,Ho:CaYAlO sub(4) single crystal was grown using the Czochralski (CZ) method. Absorption spectra, fluorescence spectrum around 2 mu m, upconversion spectrum and energy transfer (ET) schemes between Tm super(3+) ions and Ho super(3+) ions have been studied. The broad FWHM of 797 nm absorption band, large emission bandwidth (about 600 nm) and intense ET from Tm super(3+) ions to Ho super(3+) ions makes Tm,Ho:CaYAlO sub(4) a promising media for tunable and ultrashort pulses.
ISSN:0232-1300
1521-4079
DOI:10.1002/crat.201300347