Results 41 to 50 of about 657,522 (147)
Quantum-enhanced Doppler lidar
npj Quantum Information, 2022 We propose a quantum-enhanced lidar system to estimate a target’s radial velocity, which employs squeezed and frequency-entangled signal and idler beams.
Maximilian Reichert +3 more
doaj +1 more source
Aerial LiDAR Techniques: Lineer-Mode LiDAR and Photon Counting LiDAR
, 2022 LiDAR tekniklerindeki gelişmeler, hava platformlarından arazi topoğrafyası ölçmelerinde geleneksel lineer-mode LiDAR (LML) yöntemine alternatif olarak, Geiger-mode LiDAR (GML) ve tekli-foton LiDAR (Single-Photon LiDAR) yöntemlerini ortaya çıkarmıştır ...
Altuntaş, Cihan
core
From Planar to 3D Nanophotonic Lenses: Advancing Design, Fabrication, and Applications
Laser &Photonics Reviews, EarlyView.Three‐dimensional nanophotonic lenses are enabled by an integrated workflow that links design parameterization, full‐wave electromagnetic simulation, computational optimization, and freeform fabrication. This Review summarizes how these tools expand optical design freedom beyond a single patterned plane by enriching the local meta‐atom response and ...
Wei Zhu +2 more
wiley +1 more source
A Scalable Platform for Massively Parallel Superconducting Single‐Photon Detection
Laser &Photonics Reviews, EarlyView.One hundred independent superconducting nanowire detectors, each with efficiency up to 80.1–98.3%, are integrated into a single compact system operating below 2.1 K. This parallel architecture supports fully connected multi‐user quantum entanglement distribution, while its scalability opens new avenues in optical quantum computing, QKD networks ...
You Xiao +14 more
wiley +1 more source
Laser &Photonics Reviews, EarlyView.Micro‐transfer printing enables GaAs and InP gain materials to be integrated on a commercial silicon nitride photonic platform. The resulting chip supports O‐ and C‐band comb and single‐mode lasers, demonstrating a scalable route toward multi‐material, multi‐wavelength, and multifunctional integrated light sources.
Dongbo Wang +12 more
wiley +1 more source
New instruments and technologies for Cultural Heritage survey: full integration between point clouds and digital photogrammetry [PDF]
, 2010 In the last years the Geomatic Research Group of the Politecnico di Torino faced some new research topics about new instruments for point cloud generation (e.g. Time of Flight cameras) and strong integration between multi-image matching techniques and 3D
F. Rinaudo +7 more
core +1 more source
Room temperature photon-counting lidar at 3 mu m
, 2022 A midinfrared single-photon-counting lidar at 3 mu m is presented. The 3 mu m photons were upconverted to 790 nm in a periodically poled rubidium-doped KTiOPO4 crystal through intracavity mixing inside a 1064 nm Nd:YVO4 laser and detected using a ...
Pasiskevicius, Valdas, +4 more
core +1 more source
Small, EarlyView.Bio‐inspired computing offers a route to highly energy‐efficient artificial intelligence. The unique physical properties of two‐dimensional (2D) materials can further enhance such computing approaches. This perspective highlights recent developments in 2D materials‐based neuromorphic devices and discusses future opportunities for integrating such novel
Jin Feng Leong +9 more
wiley +1 more source
Twenty Years of Rad-Hard K14 SPAD in Space Projects
Sensors, 2015 During last two decades, several photon counting detectors have been developed in our laboratory. One of the most promising detector coming from our group silicon K14 Single Photon Avalanche Diode (SPAD) is presented with its valuable features and space ...
Vojtěch Michálek +2 more
doaj +1 more source
Three-Dimensional Imaging via Time-Correlated Single-Photon Counting
Applied Sciences, 2020 Three-dimensional (3D) imaging under the condition of weak light and low signal-to-noise ratio is a challenging task. In this paper, a 3D imaging scheme based on time-correlated single-photon counting technology is proposed and demonstrated.
Chengkun Fu +8 more
doaj +1 more source