Spectroscopic properties of Tm,Ho:CaYAlO 4 single crystal

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

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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
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Summary:A Tm,Ho:CaYAlO 4 single crystal was grown using the Czochralski (CZ) method. The absorption spectra, the fluorescence spectrum around 2 μm, the upconversion spectrum and energy‐transfer (ET) schemes between Tm 3+ ions and Ho 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 3+ ions to Ho 3+ ions make Tm,Ho:CaYAlO 4 a promising media for tunable and ultrashort pulses.
ISSN:0232-1300
1521-4079
DOI:10.1002/crat.201300347