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Abstract: Absorption and emission spectral properties of GdVO4 single crystal doped with Ho3+ ions were investigated at room temperature. Polarized absorption cross section is calculated in the range of 400–2200nm. Results were analyzed and parameters were calculated based on Judd-Ofelt theory, the emission spectrum shows that the emission intensity around the wavelength of 546nm associated with transition 5S2 → 5I8 is much stronger than other bands in the observed range and potentially enable the green light output around this emission band in this crystal. [Copyright &y& Elsevier]

Abstract: In this paper, a Yb3+ doped Lu3ScAl4O12 single crystal has been grown by the Czochralski method. The cell parameters were analyzed with X-ray diffraction (XRD). The absorption spectrum, emission spectrum and fluorescence lifetime of Yb:Lu3ScAl4O12 crystal were measured at room temperature. The absorption bandwidth, emission bandwidth, absorption cross-section, emission cross-section and fluorescence lifetime have been estimated as 25nm, 12.6nm, 0.54×10−20 cm2, 1.47×10−20 cm2 and 1.43ms. The spectral properties of Yb:Lu3ScAl4O12 crystal were compared with those of Yb:Lu3Al5O12 (Yb:LuAG) crystal. The results indicate that Yb:Lu3ScAl4O12 crystal should be a potential candidate used for generating short pulses in mode-locking operation. [Copyright &y& Elsevier]