Abstract Plasmons, the electromagnetic excitations coupled with electron waves, possess the intrinsic ability of manipulating light at subwavelength scales down to picometer. This ability not only helps uncovering the fascinating quantum behaviors that strengthen the basic understanding of quantum science, but also enables the inventions of various quantum optoelectronic devices, triggering the birth of quantum plasmonic technology. The past decade has witnessed the flourishing of this technology. In this review, we first focus on fundamental investigations into quantum behaviors for both “isolated” plasmonic nanostructures and “coupled” plasmon-emitter systems, emphasizing new theoretical frameworks and experimental advances. Leveraging on these fundamentals, the progress in exploring and applying quantum plasmonic devices is discussed, such as quantum plasmonic circuits, nanolasers, biochemistry, and spin-orbit interaction devices. Upon summarizing the past and present developments, the future research directions and promising applications are highlighted.

中文翻译：

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量子等离子体学得到应用

摘要 等离子激元是与电子波耦合的电磁激发，具有在亚波长下至皮米级操纵光的内在能力。这种能力不仅有助于揭开迷人的量子行为，加强对量子科学的基本理解，而且使各种量子光电器件的发明成为可能，引发了量子等离子体技术的诞生。过去十年见证了这项技术的蓬勃发展。在这篇综述中，我们首先关注“隔离”等离子体纳米结构和“耦合”等离子体发射系统的量子行为的基础研究，强调新的理论框架和实验进展。利用这些基本原理，讨论了探索和应用量子等离子体设备的进展，例如量子等离子体电路、纳米激光器、生物化学和自旋轨道相互作用装置。在总结过去和现在的发展时，强调了未来的研究方向和有前景的应用。