Growth and use of concentration gradient samples for the study of dynamical processes of laser resonant transitions in RE doped Y₂O₃ (RE= Yb³⁺, Er³⁺, Ho³⁺)

Abstract

The LHPG (Laser Heated Pedestal Growth) technique is a fast and efficient method to grow single crystals under the shape of fiber. Many different spectroscopic studies have already been performed on as-grown samples and laser experiments have been achieved with Nd doped Y₂O₃ fiber in 1973 [1]. We are particularly interested in refractory sesquioxides (Y₂O₃, Lu₂O₃, Sc₂O₃, Gd₂O₃) doped with lanthanide ions (Er³⁺, Yb³⁺) for all solid state laser achievement.