/ en-us Â鶹ÒùÔº internet news portal provides the latest news on science including: Â鶹ÒùÔºics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. In the realm of quantum information distribution, sending a signal from point A to point B is like a baseball pitcher relaying a secret pitch call to the catcher. The pitcher has to disguise the signal from the opposing team and coaches, base runners, and even onlookers in the stands so no one else cracks the code. /news/2025-02-qubits-qudits-quantum-mechanics-transmit.html Quantum Â鶹ÒùÔºics Mon, 10 Feb 2025 11:41:06 EST news658410062 Researchers have developed a compact and lightweight single-photon airborne lidar system that can acquire high-resolution 3D images with a low-power laser. This advance could make single-photon lidar practical for air and space applications such as environmental monitoring, 3D terrain mapping and object identification. /news/2024-04-airborne-photon-lidar-high-resolution.html Optics & Photonics Thu, 25 Apr 2024 10:00:01 EDT news633252781 The world of laser scanning microscopy is quickly evolving, thanks to the advent of fast and compact detector arrays. These arrays replace the typical single-element detector of traditional confocal laser scanning microscopes, enabling new and unique capabilities. /news/2024-02-images-photon-content-microscopes.html Optics & Photonics Tue, 06 Feb 2024 17:14:04 EST news626462042 Researchers at the University of Warsaw's Faculty of Â鶹ÒùÔºics with colleagues from Stanford University and Oklahoma State University have introduced a quantum-inspired phase-imaging method based on light intensity correlation measurements that is robust to phase noise. /news/2023-12-images-hidden-noise-revealed-quantum-inspired.html Optics & Photonics Quantum Â鶹ÒùÔºics Wed, 27 Dec 2023 14:31:12 EST news622909866 Researchers have reported the first 3D measurements acquired with quantum ghost imaging. The new technique enables 3D imaging on a single photon level, yielding the lowest photon dose possible for any measurement. /news/2023-08-spad-detector-3d-quantum-ghost.html Optics & Photonics Quantum Â鶹ÒùÔºics Tue, 08 Aug 2023 11:30:56 EDT news610713052 Researchers have developed a quantum key distribution (QKD) system based on integrated photonics that can transmit secure keys at unprecedented speeds. The proof-of-principle experiments represent an important step toward real-world application of this highly secure communication method. /news/2023-05-chip-based-quantum-key-higher-transmission.html Optics & Photonics Quantum Â鶹ÒùÔºics Thu, 25 May 2023 16:09:55 EDT news604249793 For the first time, researchers have demonstrated a prototype lidar system that uses quantum detection technology to acquire 3D images while submerged underwater. The high sensitivity of this system could allow it to capture detailed information even in extremely low-light conditions found underwater. /news/2023-05-quantum-lidar-prototype-real-time-3d.html Optics & Photonics Quantum Â鶹ÒùÔºics Thu, 04 May 2023 13:12:23 EDT news602424736 Invented in 1970 by Corning Incorporated, low-loss optical fiber became the best means to efficiently transport information from one place to another over long distances without loss of information. The most common way of data transmission nowadays is through conventional optical fibers—one single core channel transmits the information. However, with the exponential increase of data generation, these systems are reaching information-carrying capacity limits. /news/2022-11-two-photon-quantum-states-phase-separated-anderson.html Optics & Photonics Quantum Â鶹ÒùÔºics Wed, 23 Nov 2022 12:33:40 EST news588429217 In high-end 21st century communications, information travels in the form of a stream of light pulses typically traveling through fiber optic cables. Each pulse can be as faint as a single photon, the smallest possible unit (quantum) of light. The speed at which such systems can operate depends critically on how fast and how accurately detectors on the receiving end can discriminate and process those photons. /news/2021-04-photons-unprecedented.html Optics & Photonics Quantum Â鶹ÒùÔºics Tue, 13 Apr 2021 08:33:47 EDT news537521619 In a new report on Science Advances, Hsinhan Tsai and a research team in materials, nanotechnology, nuclear engineering and X-ray science at the Los Alamos National Laboratory and the Argonne National Laboratory in the U.S. demonstrated a new thin film X-ray detector prototype. The set up contained highly crystalline two-dimensional (2-D) Ruddlesden-Popper (RP) phase layered perovskites and maintained a high diode resistivity of 1012 Ohm.cm, leading to a high X-ray detecting sensitivity of up to 0.276 C Gyair−1 cm−3. To promise revolutionary medical imaging with minimal health risks. The team collected the signals using the built-in potential and the results underpin the operation of existing robust primary photocurrent devices. The detectors generated substantial X-ray photon-induced open-circuit voltages as an alternate detecting mechanism. The work suggests a new generation of X-ray detectors based on low-cost, layered perovskite thin films for future X-ray imaging technologies. /news/2020-04-robust-sensitive-thin-film-x-ray-detector.html Nanophysics Nanomaterials Fri, 17 Apr 2020 10:20:02 EDT news506337177 Researchers have developed the first megapixel photon-counting camera based on new-generation image sensor technology that uses single-photon avalanche diodes (SPADs). The new camera can detect single photons of light at unprecedented speeds, a capability that could advance applications that require fast acquisition of 3-D images such as augmented reality and LiDAR systems for autonomous vehicles. /news/2020-04-photon-counting-camera-captures-d-images.html Optics & Photonics Thu, 16 Apr 2020 10:00:01 EDT news506240832 Single-photon avalanche diodes (SPADs) are promising detector technologies that may be used to achieve active 3D imaging systems with fast acquisition, high timing accuracy and high detection sensitivity. Such systems have broad applications in the domains of biological imaging, remote sensing and robotics. However, the detectors face technical impairments known as pileup that cause measurement distortions to limit their precision. In a recent study, conducted at the Stanford University Department of Electrical Engineering, scientists Felix Heide and co-workers developed a probabilistic image formation model that could accurately model pileup. Using the proposed model, the scientists devised inverse methods to efficiently and robustly estimate the scene depth and reflectance from recorded photon counts. With the algorithm, they were able to demonstrate improvements to the accuracy of timing, compared to existing techniques. More importantly, the model allowed accuracy at the sub-picosecond in photon-efficient 3D imaging for the first time in practical scenarios, whereas previously only widely-varying photon counts were observed. The results are now published in Scientific Reports. /news/2018-12-sub-picosecond-photon-efficient-imaging-single-photon-sensors.html Optics & Photonics Mon, 17 Dec 2018 09:30:03 EST news464253923 Compressed sensing is an exciting new computational technique for extracting large amounts of information from a signal. In one high-profile demonstration, for instance, researchers at Rice University built a camera that could produce 2-D images using only a single light sensor rather than the millions of light sensors found in a commodity camera. /news/2017-03-faster-single-pixel-camera-technique-greatly.html Optics & Photonics Thu, 30 Mar 2017 02:59:42 EDT news410061571 (Â鶹ÒùÔº)—Every time you take a photograph, your camera detects more than a billion photons. For a basic one-megapixel camera, that's more than 1,000 photons per pixel. Now in a new study, researchers have developed an algorithm that is so efficient that it can generate high-quality 3D images using a single-photon camera that detects just one signal photon per pixel. /news/2016-07-3d-images-photon-pixel-video.html Optics & Photonics Wed, 13 Jul 2016 09:30:01 EDT news387604831 Bathing a patient in LED light may someday offer a new way to locate tumors, according to Rice University researchers. /news/2016-05-nanotubes-beacons-cancer-imaging-technique.html Nanomaterials Fri, 20 May 2016 18:12:45 EDT news382986756 How can a person see around a blind corner? One answer is to develop X-ray vision. A more mundane approach is to use a mirror. But if neither are an option, a group of scientists led by Genevieve Gariepy have developed a state-of-the-art detector which, with some clever data processing techniques, can turn walls and floors into a "virtual mirror", giving the power to locate and track moving objects out of direct line of sight. /news/2015-12-amazing-camera-corners-video.html Optics & Photonics Tue, 08 Dec 2015 05:24:30 EST news368774655 (Â鶹ÒùÔº)—A team of researchers working at the Institute of Photonics and Quantum Sciences, Heriot-Watt University, in Scotland has developed a method for filming a laser beam as it bounces back and forth between mirrors—in normal air. In their paper published in the journal Nature Communications, the team describes how they did it and share the video they created. /news/2015-01-group-figures-laser-air-mirrors.html General Â鶹ÒùÔºics Thu, 29 Jan 2015 10:38:54 EST news341750320 (Â鶹ÒùÔºOrg.com) -- European researchers who created an ultra-fast, extremely high-resolution video camera have enabled dozens of medical applications, including one scenario that can record 'thought' processes travelling along neurons. This is ingenious science. /news/2009-10-video-camera-thought.html Engineering Mon, 12 Oct 2009 08:16:25 EDT news174554094 (Â鶹ÒùÔºOrg.com) -- European researchers have created a CMOS (semiconductor) camera capable of filming individual photons one million times a second. The breakthrough will impact on all the most advanced areas of science and makes Europe the world leader in the technology. /news/2009-10-photons-million.html Electronics & Semiconductors Mon, 05 Oct 2009 10:39:01 EDT news173957578 Researchers at NIST have built a prototype high-speed quantum key distribution system, based on a new detector system that achieves dramatically lower noise levels than similar systems. /news/2007-06-quantum-key-combines-distance.html General Â鶹ÒùÔºics Sat, 09 Jun 2007 06:03:01 EDT news100587781 After the anthrax attacks in the United States in 2001 the threat of a larger and more deadly bioterrorism attack -- perhaps from smallpox, plague or tularemia -- became very real. But the ability to detect such biological agents and rapidly contain an attack is still being developed. /news/2005-09-tiny-avalanche-photodiodes-bioterrorism-agents.html Tue, 13 Sep 2005 13:51:21 EDT news6443