金属微纳结构操控单光子发射体辐射

doi:10.3969/j.issn.1007-5461.2024.02.001

摘要/Abstract

摘要： 固态单光子发射体结合了原子优异的光学性质 (如高可靠性、高效率等) 和固态系统的便利性与可扩展性, 在可扩展光量子信息技术中扮演着重要角色。然而, 真空中固态单光子发射体所发出的单光子具有自发辐射速率低、各向同性发射、发射光的偏振状态随机等不足, 这极大地限制了其应用。金属微纳结构支持的表面等离激元具有巨大的场增强和亚波长的场束缚效应, 因此国内外研究者设计了各种各样的金属微纳结构来操控单光子发射体的辐射。本研究综述了金属微纳结构在单光子发射体自发辐射增强、准直辐射、辐射偏振操控等方面的研究进展, 重点比较了性能指标并分析了操控机制。最后, 对金属微纳结构操控单光子发射体辐射的挑战和发展进行了展望。

关键词: 纳米光子学, 单光子发射体, 金属微纳结构, 辐射增强, 辐射方向, 辐射偏振

Abstract: Solid-state single-photon emitters have advantages of the outstanding optical properties of atoms and the convenience and extensibility of solid-state systems. So they play an important role in scalable optical quantum information technology. However, single photons emitted from solid-state single-photon sources in vacuum have some drawbacks, such as low spontaneous radiation rates, omnidirection, and random polarization states. These drawbacks greatly limit their applications. Surface plasmons supported by metallic micro-nano structures have huge field enhancement and sub-wavelength field confinement. Therefore, a variety of metallic micro-nano structures have been designed to manipulate single-photon emission. Here, recent advances in exploiting metallic micro-nano structures for enhancing emission and tailing emission direction and polarization are reviewed. Their performances are compared and the control mechanisms are analyzed. Finally, the challenges and developments of the manipulation of single-photon emission by metallic micro-nano structures are prospected.

Key words: nanophotonics, single-photon emitters, metallic micro-nano structures, emission enhancement, emission direction, emission polarization

中图分类号:

吴广坤#, 丁华峰#, 陈建军 . 金属微纳结构操控单光子发射体辐射[J]. 量子电子学报, 2024, 41(2): 185-193.

Tailoring single-photon emission with metallic nano-structures. Tailoring single-photon emission with metallic nano-structures[J]. Chinese Journal of Quantum Electronics, 2024, 41(2): 185-193.

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