双光子关联的共聚焦成像
Confocal imaging from biphoton correlations
查看机构详情
- School of Physics and Astronomy, University of Glasgow（格拉斯哥大学物理与天文学学院）
机构由 AI 辅助整理，请以论文原文为准。
浏览论文内容
中文总结 AI 辅助
本文利用纠缠双光子空间关联实现无针孔、无扫描的并行共聚焦切片，轴向分辨率比经典方法提升√2倍。
中文摘要 AI 辅助
共聚焦显微镜为三维成像提供光学切片能力，但传统上依赖逐点扫描和物理针孔，限制了成像速度。在此，我们证明共聚焦切片可直接源于量子测量，利用纠缠双光子态中的空间关联。宽场成像系统中空间分辨的符合测量抑制了离焦平面的贡献，从而在整个视场上并行产生光学切片，无需物理针孔或机械扫描。此外，这种量子方法获得的轴向响应，由于位置-动量纠缠，比经典共聚焦成像窄√2倍。我们的工作确立了双光子关联作为改进共聚焦成像的一种机制，并实现了无需机械扫描的并行、无针孔光学切片。
英文摘要
Confocal microscopy provides optical sectioning for three-dimensional imaging but conventionally relies on point-by-point scanning and physical pinholes, limiting imaging speed. Here, we demonstrate that confocal sectioning can instead arise directly from quantum measurement, using spatial correlations in entangled biphoton states. Spatially resolved coincidence measurements in a widefield imaging system suppress contributions from out-of-focus planes, producing optical sectioning in parallel across the whole field of view without physical pinholes or mechanical scanning. In addition, this quantum approach obtains an axial response that, as a result of position-momentum entanglement, is $\sqrt{2}$-times narrower than that of classical confocal imaging. Our work establishes biphoton correlations as a mechanism for improved confocal imaging and enables parallel, pinhole-free optical sectioning without mechanical scanning.
