纳米结构的局域表面等离子体共振效应能够突破衍射极限实现对光信号的局域调控,自发现以来就引起了光学领域的广泛关注,并成为一大研究热点。从对局域光场增强效应到超材料的实现,表面等离子体都扮演着重要的角色。综述了基于纳米结构的局域表面等离子体的超快非线性光学现象及其应用研究,重点介绍了非传统表面等离子体纳米材料(重掺杂半导体)的饱和吸收效应,以及其在超快脉冲激光器中的应用,并对其发展前景进行了展望。 The local surface plasmon resonance effect of nanostructures can break through the diffraction limit to realize the local regulation of optical signals, which has attracted wide attention in the field of optics since its discovery and has become a hot research topic. Surface plasmons play an important role, from the enhancement of local light field to the realization of metamaterials. The ultrafast nonlinear optical phenomena based on nanostructured local surface plasmon and its applications are reviewed. The saturation absorption of non-traditional surface plasmon nanomaterials (heavily doped semiconductors) and their applications in ultrafast pulses Laser applications, and prospects for its development prospects.