Non-line-of-sight imaging with picosecond temporal resolution
- URL: http://arxiv.org/abs/2106.15798v1
- Date: Wed, 30 Jun 2021 03:55:45 GMT
- Title: Non-line-of-sight imaging with picosecond temporal resolution
- Authors: Bin Wang, Ming-Yang Zheng, Jin-Jian Han, Xin Huang, Xiu-Ping Xie,
Feihu Xu, Qiang Zhang, Jian-Wei Pan
- Abstract summary: Non-line-of-sight (NLOS) imaging enables monitoring around corners and is promising for diverse applications.
We construct an up-conversion single-photon detector with a high temporal resolution of 1.4 ps and a low noise count rate of 5 counts per second (cps)
Our system can provide a 180 mum axial resolution and a 2 mm lateral resolution, which is more than one order of magnitude better than that in previous experiments.
- Score: 13.81942907279106
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Non-line-of-sight (NLOS) imaging enables monitoring around corners and is
promising for diverse applications. The resolution of transient NLOS imaging is
limited to a centimeter scale, mainly by the temporal resolution of the
detectors. Here, we construct an up-conversion single-photon detector with a
high temporal resolution of ~1.4 ps and a low noise count rate of 5 counts per
second (cps). Notably, the detector operates at room temperature, near-infrared
wavelength. Using this detector, we demonstrate high-resolution and low-noise
NLOS imaging. Our system can provide a 180 {\mu}m axial resolution and a 2 mm
lateral resolution, which is more than one order of magnitude better than that
in previous experiments. These results open avenues for high-resolution NLOS
imaging techniques in relevant applications.
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