激光技术的发展推动了现代科学与技术的进步,改变了人类的生活。其中微型化激光光源成为目前的研究热点之一。得益于金属等离激元的光场强局域化作用,等离激元纳米激光器不仅能够获得突破光学衍射极限的超小物理尺寸,而且可以实现大调制速度以及极小的激射阈值,从而受到广泛的关注。对国内外等离激元纳米激光器的近期进展进行了综述,从增益介质、金属种类和器件结构三个方面进行对比总结,最后对等离激元纳米激光器的未来发展潜力进行讨论和展望。

The development of laser technique has promoted the progress of modern science and technology, and changed the life of human beings. Among them, the miniaturized laser light source has become one of the research hotspots. Due to the effect of the intensity confinement of metal plasmon, plasmonic nano lasers are able to achieve ultra-small physical size which can break through the optical diffraction limit, and achieve the high modulation speed and minimum lasing threshold, so it is widely concerned. In this review, the recent progress of plasmon nanolasers at home and abroad is discussed. The gain media, metal species, and device structures are compared and summarized. Finally, the future development potential of the plasmon nanolasers is discussed and prospected.