掺杂0.2 wt。％Dy3 +和0.2 wt。％Dy3 +，0.5 wt。％Tm3 +共掺杂（100-x）GeS2中心点xIn（2）S（3）（x = 5,10,15,20,25）准备硫属化物玻璃。 根据吸收（500至3000 nm范围）和发射（1000至4700 nm范围）测量结果分析了它们的光谱特性。 计算Judd-Ofelt强度参数Omega（t）（t = 2、4、6）以及光谱参数A（rad），β和T-rad，以及1330、2930和4320 nm的sigma（emi）估计荧光。 这些掺Dy3 +和掺Dy3 +，Tm3 +的Ge-In-S硫族化物玻璃是用于1.3μm光纤放大器和2-5μm中红外激光装置的有价值的材料。

In this letter, poly(vinylidene difluoride) (PVDF)/(Y0.97Eu0.03)2O3 rare-earth nanocomposites were prepared by a simple co-precipitation method, and their morphology, structure, and optical properties were investigated. The scanning electron microscope (SEM) images showed that the (Y0.97Eu0.03)2O3