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Noise-tolerant single photon sensitive three-dimensional imager.
Nature Communications ( IF 14.7 ) Pub Date : 2020-02-17 , DOI: 10.1038/s41467-020-14591-8 Patrick Rehain 1, 2 , Yong Meng Sua 1, 2 , Shenyu Zhu 1, 2 , Ivan Dickson 1, 2 , Bharathwaj Muthuswamy 1, 2 , Jeevanandha Ramanathan 1, 2 , Amin Shahverdi 1, 2 , Yu-Ping Huang 1, 2
Nature Communications ( IF 14.7 ) Pub Date : 2020-02-17 , DOI: 10.1038/s41467-020-14591-8 Patrick Rehain 1, 2 , Yong Meng Sua 1, 2 , Shenyu Zhu 1, 2 , Ivan Dickson 1, 2 , Bharathwaj Muthuswamy 1, 2 , Jeevanandha Ramanathan 1, 2 , Amin Shahverdi 1, 2 , Yu-Ping Huang 1, 2
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Active imagers capable of reconstructing 3-dimensional (3D) scenes in the presence of strong background noise are highly desirable for many sensing and imaging applications. A key to this capability is the time-resolving photon detection that distinguishes true signal photons from the noise. To this end, quantum parametric mode sorting (QPMS) can achieve signal to noise exceeding by far what is possible with typical linear optics filters, with outstanding performance in isolating temporally and spectrally overlapping noise. Here, we report a QPMS-based 3D imager with exceptional detection sensitivity and noise tolerance. With only 0.0006 detected signal photons per pulse, we reliably reconstruct the 3D profile of an obscured scene, despite 34-fold spectral-temporally overlapping noise photons, within the 6 ps detection window (amounting to 113,000 times noise per 20 ns detection period). Our results highlight a viable approach to suppress background noise and measurement errors of single photon imager operation in high-noise environments.
中文翻译：
耐噪声的单光子敏感三维成像仪。
对于许多感测和成像应用，非常需要能够在强背景噪声的情况下重建3D（3D）场景的有源成像器。此功能的关键是时间分辨光子检测，可将真实信号光子与噪声区分开。为此，量子参数模式分类（QPMS）可以实现的信噪比远远超过典型线性光学滤波器所能达到的，并且在隔离时间和频谱重叠噪声方面具有出色的性能。在这里，我们报告了一种基于QPMS的3D成像仪，具有出色的检测灵敏度和噪声容限。每个脉冲只有0.0006个检测到的信号光子，尽管在6 ps的检测窗口内，频谱时间重叠的噪声光子有34倍重叠，但我们可靠地重建了被遮盖场景的3D轮廓（总计113，每20 ns的检测周期产生000次噪声）。我们的结果强调了一种在高噪声环境中抑制单光子成像仪操作的背景噪声和测量误差的可行方法。
更新日期：2020-02-17
中文翻译：
耐噪声的单光子敏感三维成像仪。
对于许多感测和成像应用，非常需要能够在强背景噪声的情况下重建3D（3D）场景的有源成像器。此功能的关键是时间分辨光子检测，可将真实信号光子与噪声区分开。为此，量子参数模式分类（QPMS）可以实现的信噪比远远超过典型线性光学滤波器所能达到的，并且在隔离时间和频谱重叠噪声方面具有出色的性能。在这里，我们报告了一种基于QPMS的3D成像仪，具有出色的检测灵敏度和噪声容限。每个脉冲只有0.0006个检测到的信号光子，尽管在6 ps的检测窗口内，频谱时间重叠的噪声光子有34倍重叠，但我们可靠地重建了被遮盖场景的3D轮廓（总计113，每20 ns的检测周期产生000次噪声）。我们的结果强调了一种在高噪声环境中抑制单光子成像仪操作的背景噪声和测量误差的可行方法。
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