ABSTRACT

Exciton-surface plasmon polariton (exciton-SPP) interactions in semiconductor-metal hybrid nanostructures connect two fundamentally different quantum mechanical excitations with strikingly different dispersion relations and optical response. The main focus in investigating these light–matter interactions and nanostructures is to control the light via light on the nanometric length scale and ultrafast timescale, not achievable by present photonic or electronic technologies. Here, we provide a concise description of the relevant background physics and an overview of the manifestations, challenges and applications of weak and strong exciton-SPP interactions. It is now well established that semiconductor-metal hybrid nanostructures offer exciting opportunities to investigate intriguing quantum phenomena and many-body interactions in condensed matter systems even at room temperature. We also review how exciton-SPP interactions have been influencing various research directions. It is amply evident that a comprehensive understanding of these interactions may play an important role in several research areas. The recent progress made in this field is expected to give rise to novel applications of active plasmonic structures.

摘要

半导体-金属杂化纳米结构中的激子-表面等离振子极化（激子-SPP）相互作用将两个根本不同的量子机械激发连接起来，它们的色散关系和光学响应都显着不同。研究这些光-物质相互作用和纳米结构的主要重点是通过光控制纳米长度范围和超快时间范围的光，这是当前的光子或电子技术无法实现的。在这里，我们提供了有关背景物理的简要描述，并概述了弱和强激子-SPP相互作用的表现，挑战和应用。现在已经确定，即使在室温下，半导体-金属杂化纳米结构也提供了令人兴奋的机会来研究有趣的量子现象和凝聚态系统中的多体相互作用。我们还将回顾激子-SPP相互作用如何影响各种研究方向。十分明显的是，对这些相互作用的全面理解可能会在几个研究领域中发挥重要作用。预期在该领域中的最新进展将引起活性等离子体结构的新应用。