title: Multiple-return single-photon counting of light in flight and sensing of non-line-of-sight objects at shortwave infrared wavelengths.
abstract: Time-of-flight sensing with single-photon sensitivity enables new approaches for the localization of objects outside a sensor's field of view by analyzing backscattered photons. In this Letter, the authors have studied the application of Geiger-mode avalanche photodiode arrays and eye-safe infrared lasers, and provide experimental data of the direct visualization of backscattering light in flight, and direct vision and indirect vision of targets in line-of-sight and non-line-of-sight configurations at shortwave infrared wavelengths.
authors.forename: Martin
authors.initials: M
authors.lastname: Laurenzis
authors.forename: Jonathan
authors.initials: J
authors.lastname: Klein
authors.forename: Emmanuel
authors.initials: E
authors.lastname: Bacher
authors.forename: Nicolas
authors.initials: N
authors.lastname: Metzger