量子擦除器实现基于未探测光子的单次量子全息术
Quantum eraser enables single-shot quantum holography with undetected photons
- Kobe University（神户大学）
- Center for Life Photonic Innovation (CLiPI)（生命光子创新中心）
机构由 AI 辅助整理，请以论文原文为准。
AI总结：
本研究提出基于量子擦除器的几何相移量子全息术，通过擦除偏振和时间可区分性，实现单次拍摄实时获取近红外物体复振幅，首次用硅基传感器完成实时QHUP成像。
AI中文摘要：
基于未探测光子的量子全息术（QHUP）通过无感应发射的诱导相干性，能够在硅基传感器的灵敏度范围之外获取红外光的复振幅。QHUP通常需要多个相移全息图来恢复物体的复振幅分布，这限制了测量稳定性和时间分辨率。尽管经典并行相移全息术在时间和空间分辨率之间提供了良好的平衡，但由于光子可区分性的限制，此前尚未在QHUP中实现。在本研究中，我们提出了一种基于量子擦除器的几何相移QHUP。通过精确擦除不仅偏振可区分性，还擦除由光程差异引起的时间可区分性，可以使用配备偏振滤波阵列的硅基图像传感器在单次拍摄中恢复物体的复振幅分布。这种单次采集与实时处理相结合，使得在近红外光谱区域观察动态物体成为可能。据我们所知，这些实验结果构成了首次使用配备偏振滤波阵列的硅基图像传感器通过QHUP实时获取近红外物体复振幅分布。此外，为提高本研究的可重复性和适用性，实验光学装置、物料清单和实时成像源代码已公开提供。实时检索未探测光子所携带的复振幅信息的能力，预计将把QHUP的应用扩展到包括光谱成像和半导体检测在内的广泛领域。
英文摘要：
Quantum holography with undetected photons (QHUP) enables the complex amplitude of infrared to be acquired beyond the sensitivity range of silicon based sensors, through induced coherence withoud induced emission. QHUP generally requires multiple phase-shifted holograms to retrieve the complex-amplitude distribution of an object, which limits measurement stability and temporal resolution. Although classical parallel phase-shifting holography provides a favorable balance between temporal and spatial resolution, it has not previously been implemented in QHUP because of the constraints imposed by photon distinguishability. In this study, we propose a quantum eraser-based geometric phase-shifting QHUP. By accurately erasing not only polarization distinguishability but also temporal distinguishability arising from differences in the optical paths, the complex-amplitude distribution of an object can be retrieved in a single shot using a silicon-based image sensor equipped with a polarization-filter array. This single-shot acquisition, combined with real-time processing, enables the observation of dynamic objects in the near-infrared spectral region. To the best of our knowledge, these experimental results constitute the first real-time acquisition of the complex-amplitude distribution of a near-infrared object using QHUP with a silicon-based image sensor equipped with a polarization-filter array. Furthermore, to enhance the reproducibility and applicability of this study, the experimental optical setup, bill of materials, and source code for real-time imaging have been made openly available. The ability to retrieve the complex-amplitude information carried by undetected photons in real time is expected to extend the applicability of QHUP to a wide range of fields, including spectroscopic imaging and semiconductor inspection.
