Astor Perkins’ Post

A research team has developed a quantum lidar prototype for wind sensing, based on up-conversion quantum interference. 🌬️ Published in ACS Photonics, the system offers single-photon sensitivity, high quantum efficiency, and multi-wavelength capability, utilizing HOM interference and quantum erasure. In field tests, the quantum lidar detected wind fields up to 16 km away, achieving seven times the sensitivity of traditional lidar systems. The system also demonstrated a consistency of R² = 0.997 and captured optical signals across a 17 GHz bandwidth at MHz sampling rates. This development represents a significant advancement in quantum-based environmental sensing technology. https://lnkd.in/ei98BscD #QuantumLidar #Photonics #WindSensing

Proud to share my new publication: “Photon counting marine LiDAR using blue laser diode excitation” in Optics Express! In simple terms, we have demonstrated that gallium-nitride diode lasers can be used as compact, economical, and electrically efficient devices to obtain signals (information) beyond 50 m underwater. Further improvements to this technology imply the capability to perform rapid remote sensing of our oceans; effective in extracting various subsurface water properties and objects, including temperature, salinity, oil pollution and shipwrecks. For those interested, the paper is here: https://lnkd.in/gtNNEdbr. #ScienceForEveryone #LaserTech #Physics

FEATURED PRODUCT: Teem Photonics offers low-loss pigtailed PIC devices with five weeks turn-around time, drastically accelerating development speed and enabling a shorter path to series production. Custom or standard functions include AWGs (crosstalk > -30 dB), MZIs (modulation depth > 25 dB), splitters, zero crosstalk crossings. Applications cover telecom, sensing, lidar, and quantum technologies. #photonics

📡 Over the years, the seabed mapping community has steadily adopted technologies. But more recently, emerging tools have presented significant opportunities for accelerated mapping. So, what are the potential game changers? 👉 Sensors: LiDAR, Satellite Derived Bathymetry (SDB), Synthetic Aperture Sonars, and sensor miniaturisation, among others 👉 Survey strategies: Autonomous delivery systems, sparse arrays, and edge computing 👉 Data processing and production: Cloud storage, better integration of Sound Velocity Profile (SVP) data, and automated processing tools 👉 Data collation, management, and publication: Advances in marine data infrastructure and enhanced bandwidth Many of these are becoming mainstream and more readily available, empowering our international partners in support of the Seabed 2030 mission. 💪 Image credit: NOAA: National Oceanic & Atmospheric Administration #Hydrospatial #SeabedMapping #MarineTechnology

An example of the progression of raw digital numbers to non-uniformity-corrected imagery and, finally, flicker-compensated imagery for a single dark scene. This represents an essential step for calibrating satellite imaging sensors. #remotesensing #earthobservation #spacetechnology #satellite #newspace #smallsat #satellitedata #spacetech #cubesat #satelliteimagery

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Here’s an example of the progression of raw digital numbers to non-uniformity-corrected imagery and, finally, flicker-compensated imagery for a single dark scene. This represents an essential step for calibrating satellite imaging sensors. #remotesensing #earthobservation #spacetechnology #satellite #newspace #smallsat #satellitedata #spacetech #cubesat #satelliteimagery

📡 Over the years, the seabed mapping community has steadily adopted new sensor technology. But more recently, emerging tools have presented significant opportunities for accelerated mapping. So what are the potential game changers? 👉 Sensors: LiDAR, Satellite Derived Bathymetry (SDB), Synthetic Aperture Sonars, and sensor miniaturisation, among others 👉 Survey strategies: Autonomous delivery systems, sparse arrays, and edge computing 👉 Data processing and production: Cloud storage, better integration of Sound Velocity Profile (SVP) data, and automated processing tools 👉 Data collation, management, and publication: Advances in marine data infrastructure and enhanced bandwidth Many of these are becoming mainstream and more readily available, empowering our international partners in support of the Seabed 2030 mission. 💪 #Hydrospatial #SeabedMapping #MarineTechnology

Here’s an example of the progression of raw digital numbers to non-uniformity-corrected imagery and, finally, flicker-compensated imagery for a single dark scene. This represents an essential step for calibrating satellite imaging sensors. #remotesensing #earthobservation #spacetechnology #satellite #newspace #smallsat #satellitedata #spacetech #cubesat #satelliteimagery

🔬 CASSATA in Action: Latest Publication We’re excited to share the latest contribution from the CASSATA project! Our partner, FOI has published insightful research titled "Modelling impact of trade-off between afterpulsing and hold-off time on time-correlated single-photon lidar". This work, presented at SPIE’s Emerging Imaging and Sensing Technologies for Security and Defence IX, enhances the optimization of single-photon detectors for covert laser range finding, pushing the boundaries of European defence technology. 📖 Read the paper here: https://lnkd.in/dwdt-DYN #CASSATA #EUDefence #Research #Innovation #Photonics #DefenceTechnology