Abstract: | Single crystals of Erbium (Er) doped La3Ga5SiO14 (LGS) have been grown along c‐axis by using the Czochralski method. The absorption and fluorescence spectra of LGS: Er3+ single crystals have been measured and analyzed according to the Judd‐Ofelt theory. When applied, the following spectral parameters have been obtained: intensity parameters Ωt, Ω2= 2.741674×10‐20cm2, Ω4= 0.66934×10‐20 cm2 and Ω6= 0.592591×10‐20 cm2, radiative transition probabilities AJ,J”, PJ,J”. The radiative lifetime of levels 4I13/2, 4H9/2, 4S3/2 are 11.333ms, 0.447ms and 0.704ms, respectively. The fluorescence branching ratios and the integrated emission cross sections are also calculated. The results suggest that LGS: Er crystals have potential applications as a laser material. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) |