Toth Milos, Aharonovich Igor
Institute of Biomedical Materials and Devices, University of Technology Sydney, Ultimo, New South Wales 2007, Australia; email:
Annu Rev Phys Chem. 2019 Jun 14;70:123-142. doi: 10.1146/annurev-physchem-042018-052628. Epub 2019 Feb 8.
Layered materials are very attractive for studies of light-matter interactions at the nanoscale. In particular, isolated quantum systems such as color centers and quantum dots embedded in these materials are gaining interest due to their potential use in a variety of quantum technologies and nanophotonics. Here, we review the field of nonclassical light emission from van der Waals crystals and atomically thin two-dimensional materials. We focus on transition metal dichalcogenides and hexagonal boron nitride and discuss the fabrication and properties of quantum emitters in these systems and proof-of-concept experiments that provide a foundation for their integration in on-chip nanophotonic circuits. These experiments include tuning of the emission wavelength, electrical excitation, and coupling of the emitters to waveguides, dielectric cavities, and plasmonic resonators. Finally, we discuss current challenges in the field and provide an outlook to further stimulate scientific discussion.
层状材料对于纳米尺度下光与物质相互作用的研究极具吸引力。特别是，诸如嵌入这些材料中的色心和量子点等孤立量子系统，因其在各种量子技术和纳米光子学中的潜在应用而备受关注。在此，我们综述了范德华晶体和原子级薄二维材料的非经典光发射领域。我们重点关注过渡金属二硫属化物和六方氮化硼，并讨论这些系统中量子发射体的制备和性质，以及为其集成到片上纳米光子电路提供基础的概念验证实验。这些实验包括发射波长的调谐、电激发以及发射体与波导、介质腔和等离子体谐振器的耦合。最后，我们讨论了该领域当前面临的挑战，并展望未来以进一步激发科学讨论。
