Publication Date:
2014-06-21
Description:
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. Tm,Ho:CaYAlO 4 single crystal was grown using the Czochralski (CZ) method. Absorption spectra, fluorescence spectrum around 2 µm, upconversion spectrum and energy transfer (ET) schemes between Tm 3+ ions and Ho 3+ ions have been studied. The broad FWHM of 797 nm absorption band, large emission bandwidth (about 600 nm) and intense ET from Tm 3+ ions to Ho 3+ ions makes Tm,Ho:CaYAlO 4 a promising media for tunable and ultrashort pulses.
Print ISSN:
0232-1300
Electronic ISSN:
1521-4079
Topics:
Geosciences
,
Physics
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