Department of Electronic and Electrical Engineering, University College London, Torrington Place, London WC1E 7JE, United Kingdom.
Nanotechnology. 2019 May 10;30(19):192002. doi: 10.1088/1361-6528/ab000d. Epub 2019 Jan 18.
Semiconductor nanowire (NW) lasers are highly promising for making new-generation coherent light sources with the advantages of ultra-small size, high efficiency, easy integration and low cost. Over the past 15 years, this area of research has been developing rapidly, with extensive reports of optically pumped lasing in various inorganic and organic semiconductor NWs. Motivated by these developments, substantial efforts are being made to make NW lasers electrically pumped, which is necessary for their practical implementation. In this review, we first categorize NW lasers according to their lasing wavelength and wavelength tunability. Then, we summarize the methods used for achieving single-mode lasing in NWs. After that, we review reports on lasing threshold reduction and the realization of electrically pumped NW lasers. Finally, we offer our perspective on future improvements and trends.
半导体纳米线（NW）激光器具有超小尺寸、高效率、易于集成和低成本等优点，有望成为新一代相干光源。在过去的 15 年中，该研究领域发展迅速，各种无机和有机半导体 NW 的光泵浦激光得到了广泛的报道。受这些发展的推动，人们正在努力实现 NW 激光器的电泵浦，这对于它们的实际应用是必要的。在这篇综述中，我们首先根据激射波长和波长可调谐性对 NW 激光器进行分类。然后，我们总结了实现 NW 单模激射的方法。接着，我们回顾了关于激射阈值降低和电泵浦 NW 激光器实现的报告。最后，我们对未来的改进和趋势提出了看法。
