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。

Broadband (1.6–18 THz) terahertz time-domain spectroscopy (THz-TDS) and time-resolved terahertz spectroscopy (TRTS) were performed on a 54 μm thick chalcogenide glass (As30Se30Te40) sample with a two-color laser-induced air plasma THz system in transmission and reflection modes, respectively. Two absorption bands at 2–3 and 5–8 THz were observed. TRTS reveals an ultrafast relaxation process of the photoinduced carrier response, well described by a rate equation model with a finite concentration