Single-photon time-of-flight (TOF) non-line-of-sight (NLOS) imaging enables the high-resolution reconstruction of objects outside the field of view. The compactness of TOF NLOS imaging systems, entailing the miniaturization of key components within such systems is crucial for practical applications. Here, we present a miniaturized four-channel time-correlated single-photon counting module dedicated to TOF NLOS imaging applications. The module achieves excellent performance with a 10 ps bin size and 27.4 ps minimum root-mean-square time resolution. We present the results of TOF NLOS imaging experiment using an InGaAs/InP single-photon detector and the time-correlated single-photon counting module, and show that a 6.3 cm lateral resolution and 2.3 cm depth resolution can be achieved under the conditions of 5 m imaging distance and 1 ms pixel dwell time.
@article{arxiv.2404.07218,
title = {Miniaturized time-correlated single-photon counting module for time-of-flight non-line-of-sight imaging applications},
author = {Jie Wu and Chao Yu and Jian-Wei Zeng and Chen Dai and Feihu Xu and Jun Zhang},
journal= {arXiv preprint arXiv:2404.07218},
year = {2024}
}