Optical pump laser based on PbS quantum dots and preparation method and application thereof

The invention discloses an optical pump laser based on PbS quantum dots and a preparation method and application thereof. The optical pump laser comprises a quartz substrate, a first reflecting surface, a PbS quantum dot ultraviolet curing adhesive and a second reflecting surface which are stacked in sequence, the PbS quantum dot ultraviolet curing adhesive is formed by curing a precursor solution of PbS quantum dots, the precursor solution of the PbS quantum dots comprises photoresist and a modified PbS quantum dot solution, the modified PbS quantum dots are PbS quantum dots modified by halide ions and provided with oleic acid as ligands, laser emission can be achieved through continuous optical pumping at the room temperature, and the pumping threshold value is low. 本发明公开一种基于PbS量子点的光泵浦激光器及其制备方法与应用，其包括依次叠设的石英基底、第一反射面、PbS量子点紫外固化胶、第二反射面；PbS量子点紫外固化胶由PbS量子点的前驱体溶液固化而成，PbS量子点的前驱体溶液包括光刻胶和改性PbS量子点溶液，改性PbS量子点为经卤素离子修饰且配体为油酸的PbS量子点，可在室温条件采用连续光泵浦实现激光发射、泵浦阈值低。