growthandcharacterizationofnewlasercrystalnd3ca285gd01vo42

The crystal growth, crystal defect, thermal properties and luminescence properties of Nd 3+ :Ca 2.85 Gd 0.1 (VO 4 ) 2 were investigated. Nd 3+ :Ca 2.85 Gd 0.1 (VO 4 ) 2 crystal grown by Czochraski method was green colored, and was not transparent, which was possibly due to residual impurities in V 2 O 5 , or due to the lack of oxygen in the growth process. And the Nd 3+ :Ca 2.85 Gd 0.1 (VO 4 ) 2 crystal had the existence of 180° domains. However, the annealing method could effectively decrease the crystal defect and greatly improve the quality of crystal. The average thermal expansion coefficients calculated were α ⊥c =9.5767×10 ?6 K ?1 , α ⊥c =10.7647×10 ?6 K ?1 , respectively. The specific heat of Ca 2.85 Gd 0.1 (VO 4 ) 2 was 0.401 J 2.85 Gd 0.1 (VO 4 ) 2 were measured at 330 K. Based on the Judd-Ofelt theory, the intensity parameter Ω λ (λ=2, 4, and 6), the radiation transition probabilities t rad , the stimulated-emission cross section ρ p in Nd 3+ :Ca 2.85 Gd 0.1 (VO 4 ) 2 crystal were calculated