摘要： In this paper, an Nd:YAG laser was used to ablate an aluminum target and produce laser-induced plasma. A heating stage and two parallel plates were used to heat the target and con?ne the plasma. As determined by measuring the spectral emission, the combination of spatial con?nement and an increased target temperature had stronger enhancement e?ects compared with the cases of spatial con?nement or an increased target temperature alone. In addition, the e?ect of increasing the target temperature and spatial con?nement on plasma expansion dynamics was investigated by time-resolved plume it was easier to morphology. By capturing the images of the plasma plume during its expansion, understand the enhanced mechanism of plasma emission. When the target was heated, the plasma plume expanded faster and became narrower. Moreover, when the spatial con?nement was combined with the increased target temperature, the re?ected shockwave con?ned the expansion of the plasma plume in the lateral direction, which led to further compression of plasma in the lateral direction and further expansion of the plasma plume in the axial direction compared with the case without spatial con?nement.