The optical transition probability of Nd^3+ (0.5mol%) doped lanthanum-modified lead zirconate titanate (PLZT) is investigated. The absolute intensities of its forced electric dipole transitions between 400 nm and 1000...The optical transition probability of Nd^3+ (0.5mol%) doped lanthanum-modified lead zirconate titanate (PLZT) is investigated. The absolute intensities of its forced electric dipole transitions between 400 nm and 1000 nm were measured, from which we obtain three phenomenological parameters,Ω2= 0.787×10^-20cm^2,Ω4=1.182×10^-20cm^2, and Ω6=1.042×10^-20cm^2, according to the Judd-Ofelt theory. The radiation lifetime (346.9μs) of the ^4F3/2 metastable state, the stimulated emission cross-section σij (2.49×10^-21cm^2, 6.51×10^-21 cm^2,2.17×10^-21cm^2) and the fluorescence branch ratios are calculated. We also measured the fluorescence lifetime (155.84 μs) and calculated the quantum efficiency (46.1%). The analysis reveals that Nd^3+-doped PLZT, based on its large electro-optical effect, has potential applications in active optical devices.展开更多
文摘The optical transition probability of Nd^3+ (0.5mol%) doped lanthanum-modified lead zirconate titanate (PLZT) is investigated. The absolute intensities of its forced electric dipole transitions between 400 nm and 1000 nm were measured, from which we obtain three phenomenological parameters,Ω2= 0.787×10^-20cm^2,Ω4=1.182×10^-20cm^2, and Ω6=1.042×10^-20cm^2, according to the Judd-Ofelt theory. The radiation lifetime (346.9μs) of the ^4F3/2 metastable state, the stimulated emission cross-section σij (2.49×10^-21cm^2, 6.51×10^-21 cm^2,2.17×10^-21cm^2) and the fluorescence branch ratios are calculated. We also measured the fluorescence lifetime (155.84 μs) and calculated the quantum efficiency (46.1%). The analysis reveals that Nd^3+-doped PLZT, based on its large electro-optical effect, has potential applications in active optical devices.
