Optical intensity analyses of Er3+:YAlO3

摘要: Analyses of the optical absorption and emission intensities are performed on Er3+ ions doped into yttrium orthoaluminate YAlO3 to assess this material as a laser source. The Judd–Ofelt model is applied room temperature in obtain phenomenological intensity parameters: Ω2=1.06×10−20 cm2, Ω4=1.96×10−20 cm2, Ω6=1.40×10−20 cm2. parameters used determine radiative decay rates branching ratios transitions from upper multiplet manifolds corresponding lower-lying L2S+1J YAlO3. Using rates, lifetimes 13 excited states have been determined. fluorescence lifetime Er3+ S43/2→I415/2 transition measured be 0.43 ms. Values cross section peak obtained for Er3+ I413/2→I415/2 S43/2→I415/2 intermanifold transitions. detailed structure observed manifold-to-m...