Absorption spectrum and parameters calculation of Tm3+ in YVO4 crystal

In this paper, the absorption and fluorescent spectrum of Tm 3+ :YVO 4 at room temperature were measured. According to Judd-Ofelt theory, the intensity parameters (Omega) (lambda )((Omega) 2 equals 3.166 X 10 -20 cm 2 , (Omega) 4 equals 1.368 X 10 -20 cm 2 , (Omega) 6 equals 0.955 X 10 -20 cm 2 ) were worked out. With these values, oscillator strength, spontaneous radiative rate, radiative lifetime, branching ratio and integrated emission cross-section were calculated. The potential application of Tm 3+ :YVO 4 crystal to be a laser material was also discussed.