0.8Gd 0.8Y 0.4SiO 5 with potential for broadband tunable lasing]]>

摘要

Highlights?Tm: Lu0.8Gd0.8Y0.4SiO5was crystal was successfully grown for the first time.?The FHWM of 2?μm represents for the broadest one among the Tm3+doped crystals.?Optical properties of Tm: LGYSO as 2?μm laser crystal were evaluated.AbstractA novel Tm3+-doped crystal Lu0.8Gd0.8Y0.4SiO5(Tm: LGYSO) was grown by the Czochralski (Cz) method. The full width half maximum (FWHM) of the Tm:LGYSO crystal around 2?μm was as broad as 280?nm, which is the broadest FWHM among the Tm3+doped crystals have been reported, to the best of our knowledge. The crystal growth, structure, absorption spectra, J-O parameters, emission spectra and fluorescence lifetime were discussed in details. The absorption cross-section is 1.429