稀土掺杂的镧镓酸盐玻璃

Lanthanum gallate glasses combine the attributes of wide transmission region, good glass stability, rare earth ion solubility, and lowest phonon energy spectrum among oxide glass. So it has broad application prospects in the fields of optical devices and optical communications. The purpose of this project is to develop the rare earth doped lanthanum gallium oxide based glasses for laser and optical waveguide applications. In the proposed project we will fabricate the neodymium(Nd3+), praseodymium (Pr3+), erbium (Er3+), thulium (Tm3+), and holmium (Ho3+) doped lanthanum gallium oxide based glasses with better chemical and thermal durability than fluoride glasses using melt-quenching technology, study the optical properties including absorption, fluorescence, fluorescence lifetime, quantum efficiency, absorption cross-section and emission cross-section of the rare earth ions in the lanthanum gallate glasses, investigate the dependence of chemical durability, thermal stabilization and optical properties of these doped glasses on the chemical compositions，and explore the planar waveguide fabrication technique for the glasses. Based on the investigation of performance of the rare earth ions doped glass, the glass compositions and fabrication technique of the glasses will be optimized.

镧镓酸盐玻璃具有较宽的红外透过范围、良好的玻璃稳定性和稀土离子溶解能力、以及较低的声子能量，在光电子和光通信领域具有广阔的应用前景。项目将调查稀土离子Nd3+、 Pr3+、 Er3+、Tm3+ 和 Ho3+在该玻璃体系中的吸收光谱、荧光光谱、荧光寿命、量子效率，吸收截面以及发射截面等光谱特性。揭示玻璃组分的变化对镧镓酸盐玻璃的化学稳定性、热稳定性、机械强度、以及光谱性质的影响；探索制作光学波导的条件。基于对稀土掺杂玻璃性能的研究，优化玻璃的组成和制备工艺。发展镧镓酸盐玻璃在激光和光波导器件中的应用。

镧镓酸盐玻璃具有较宽的红外透过范围、良好的玻璃稳定性和稀土离子溶解能力、以及较低的声子能量，在光电子和光通信领域具有广阔的应用前景。项目调查了稀土离子Nd3+、Pr3+、 Er3+、Tm3+ 和 Ho3+在该玻璃体系中的吸收光谱、荧光光谱、荧光寿命、量子效率，吸收截面以及发射截面等光谱特性。揭示了玻璃组分的变化对镧镓酸盐玻璃的化学稳定性、热稳定性、机械强度、以及光谱性质的影响；探索了制作光学波导的条件。基于对稀土掺杂玻璃性能的研究，优化了玻璃的组成和制备工艺。为发展镧镓酸盐玻璃在激光和光波导器件中的应用提供了研究基础。