论文标题

用于量子光相干断层扫描的频谱分辨的Hong-Ou-Mandel干涉法

Spectrally-resolved Hong-Ou-Mandel interferometry for Quantum-Optical Coherence Tomography

论文作者

Yepiz-Graciano, Pablo, Martinez, Ali Michel Angulo, Lopez-Mago, Dorilian, Cruz-Ramirez, Hector, U'Ren, Alfred B.

论文摘要

在本文中,我们重新审视了众所周知的Hong-Ou-Mandel(HOM)效应,其中在Beamsplitter上相遇的两个光子可以破坏性地干扰,从而导致巧合计数无效。在标准的HOM测量中,随着Beamsplitter之前的两个光子之间的时间延迟变化,对Beamsplitter的两个输出端口的巧合计数进行了监测,从而导致众所周知的HOM DIP。我们在理论上和实验上都表明,通过将延迟固定在特定值的同时依靠频谱分辨的巧合光子计数,我们可以重建HOM DIP,这将通过标准的延迟延迟,非光谱分辨的HOM测量获得。我们表明,我们的数值重建程序对所有阶都表现出新的分散取消效应。我们讨论当前的工作如何导致获取HOM干预图所需的时间大幅度减少,并特别讨论这对于实施有效的量子光学相干断层扫描设备的实施可能特别重要。

In this paper, we revisit the well-known Hong-Ou-Mandel (HOM) effect in which two photons, which meet at a beamsplitter, can interfere destructively, leading to null in coincidence counts. In a standard HOM measurement, the coincidence counts across the two output ports of the beamsplitter are monitored as the temporal delay between the two photons prior to the beamsplitter is varied, resulting in the well-known HOM dip. We show, both theoretically and experimentally, that by leaving the delay fixed at a particular value while relying on spectrally-resolved coincidence photon-counting, we can reconstruct the HOM dip, which would have been obtained through a standard delay-scanning, non-spectrally-resolved HOM measurement. We show that our numerical reconstruction procedure exhibits a novel dispersion cancellation effects, to all orders. We discuss how our present work can lead to a drastic reduction in the time required to acquire a HOM interferogram, and specifically discuss how this could be of particular importance for the implementation of efficient quantum-optical coherence tomography devices.

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