Kan Yinhui, Liu Xujing, Kumar Shailesh, Bozhevolnyi Sergey I
Center for Nano Optics, University of Southern Denmark, Odense M DK-5230, Denmark.
ACS Photonics. 2024 Feb 15;11(4):1584-1591. doi: 10.1021/acsphotonics.3c01745. eCollection 2024 Apr 17.
On-chip manipulation of photon emission from quantum emitters (QEs) is crucial for quantum nanophotonics and advanced optical applications. At the same time, the general design strategy is still elusive, especially for fully exploring the degrees of freedom of multiple channels. Here, the vectorial scattering holography (VSH) approach developed recently for flexibly designing QE-coupled metasurfaces is extended to tempering the strength of QE emission into a particular channel. The VSH power is demonstrated by designing, fabricating, and optically characterizing on-chip QE sources emitted into six differently oriented propagation channels, each representing the entangled state of orthogonal circular polarizations with different topological charges and characterized with a specific relative strength. We postulate that the demonstration of tempered multichannel photon emission from QE-coupled metasurfaces significantly broadens the possibilities provided by the holographic metasurface platform, especially those relevant for high-dimensional quantum information processing.
对量子发射器（QEs）的光子发射进行片上操纵对于量子纳米光子学和先进光学应用至关重要。与此同时，通用的设计策略仍然难以捉摸，特别是在充分探索多通道自由度方面。在此，最近开发的用于灵活设计QE耦合超表面的矢量散射全息术（VSH）方法被扩展用于调节QE发射到特定通道的强度。通过设计、制造和光学表征发射到六个不同取向传播通道的片上QE源，展示了VSH的能力，每个通道代表具有不同拓扑电荷的正交圆偏振的纠缠态，并具有特定的相对强度。我们推测，从QE耦合超表面实现的多通道光子发射强度调节的演示显著拓宽了全息超表面平台提供的可能性，特别是那些与高维量子信息处理相关的可能性。
