Articles tagged with Light Sensors
A new sensor developed by the Universitat Politècnica de València can quickly detect scopolamine, a substance commonly used in chemical submission crimes, with high sensitivity. The sensor uses a molecular cage to trap specific molecules and generates a fluorescent signal proportional to the amount of scopolamine present.
A research group at Chuo University has developed a non-destructive in-line dynamic photo-monitoring system for pharmaceutical agent pills using carbon nanotube (CNT) photo-thermoelectric imagers. This system facilitates multi-wavelength photo-monitoring and identifies constituent materials and concealed foreign substances in a non-con...
Researchers at Chuo University have developed chemically enriched photo-thermoelectric (PTE) imagers using semiconducting carbon nanotube (CNT) films, achieving enhanced response intensity and noise reduction. This enables efficient remote and on-site inspections with palm-sized wireless circuits.
Researchers created a machine vision sensor that adapts to extreme changes in light faster than the human eye, using quantum dots to mimic key behaviors. The device can respond dynamically to bright and dim lighting, outperforming existing systems by reducing redundant data and computational burden.
Researchers develop multiresonant fiber acoustic sensor with stabilized triple-phase demodulation, achieving flat low noise floor and high sensitivity across a wide acoustic spectrum. The sensor detects weak sounds and exhibits outstanding performance in ecosystem monitoring, speech recognition, and high-intensity shock detection.
Researchers at TU Graz developed methods to run AI models locally on small devices with limited memory, enabling efficient positioning error correction and industrial applications. The E-MINDS project introduced a modular system using division, orchestration, subspace configurable networks, quantisation, and pruning techniques.
Researchers at Aalto University have developed a microscopic spectral sensor that can identify materials with unprecedented accuracy. The device achieves an extraordinary peak wavelength identification accuracy of ~0.2 nanometers, enabling it to distinguish thousands of colours.
A study of over 13 million hours of data found that exposure to bright nights and dark days is associated with an increased risk of death. Those exposed to high levels of light at night had a 21–34% increased risk, while those exposed to high levels of daylight had a 17–34% reduction in their risk of death.
A Flinders University study found that exposure to brighter light at night is associated with a higher risk of developing type 2 diabetes. The research used data from approximately 85,000 people and tracked their light levels for nine years.
A new, tuneable edge-detecting filter for flat-optic imaging systems can switch between an image of an object's outline and a detailed infrared image, enabling precise crop management and habitat restoration. The filter is compact, lightweight, and can be mass-manufactured.
Researchers at ICFO have developed a new method to synthesize arsenic-free InSb colloidal quantum dots with access to the SWIR range. The InSb/InP core-shell structure improves stability and sensitivity in SWIR photodetectors, offering an environmentally friendly alternative to epitaxial technology.
Researchers from Osaka University have developed a soft, flexible, and wireless optical sensor based on carbon nanotubes and organic transistors formed on ultra-thin polymer film. The sensor has high sensitivity over a wide range of wavelengths and can work even after being crumpled into a ball.
Scientists at the University of Nebraska-Lincoln have developed a system that can adjust the size, shape, and refractive index of microscopic lenses in real-time. The design uses hydrogels and polydimethylsiloxane to create a dynamic platform for soft robotics and liquid optics applications.
Researchers at the University of British Columbia developed a stretchable, transparent display that can change color in real-time, opening doors for potential uses in wearable devices and disposable applications. The device's low power consumption and cost-effectiveness make it attractive for integration into everyday devices.
Researchers have developed flexible photodetectors that can detect visible to long-wave infrared radiation, covering the full spectrum of greenhouse gases without complex optical components. The new detectors are simple and cost-effective to make, with production at room temperature.
Researchers at KAUST developed smart digital image sensors that can recognize images with high accuracy, using a charge-trapping 'in-memory' sensor sensitive to visible light. The devices have an extremely long-lived retention time of up to 10 years and can perform optical sensing, storage, and computation.
Researchers at Aalto University developed a new bio-inspired sensor that can recognize moving objects in a single frame from a video and predict where they will move to. The sensor uses embedded information to detect motion, allowing for accurate predictions of future trajectories.
Researchers at Eindhoven University of Technology have developed a photodiode with sensitivity exceeding 200%, using green light and a double-layered cell design. This breakthrough enables the device to detect weak light signals, making it ideal for medical purposes, wearable monitoring, and machine vision applications.
Research by Dr. Jessie Turner and colleagues highlights the impact of water-clarity metrics on seagrass and light-loving organism restoration goals. The study suggests that different measurement methods can misrepresent underwater light climates, emphasizing the need for clear communication of methods used.
An interdisciplinary team of Northwestern University researchers has developed a new method to determine the fingerprint of neighboring disorder in 2D materials. This method enables a universal curve that characterizes disorder potentials, leading to improved performance in transistors and gas sensors.
FAU researchers custom-build multi-sensor tag combined with AI to observe goliath grouper species in the wild. The study identified 13 behaviors, including hovering, forward swimming, and vocalizations, using video footage from the tags.
Researchers at Incheon National University have developed a compact and robust optical sensor that can convert light to digital signals, suitable for flexible electronics. The new design architecture enables superior chip area efficiency and large-area scalability.
The NTU team created flexible UV light sensors that are 25 times more responsive and 330 times more sensitive than existing sensors. These sensors can be used in wearable devices to monitor personal UV exposure and reduce the risk of skin cancer.
Researchers have developed a novel light sensor from two algae's rhodopsins that can produce the signaling molecule cGMP in response to UV or violet light, and inhibit its production with blue or green light. This breakthrough advances optogenetics by providing new tools for studying nerve cell function and other physiological processes.
The Hong Kong University of Science and Technology has developed a groundbreaking 3D artificial eye with capabilities surpassing human eyes, offering sharper vision and infrared detection. The innovative design features a nanowire light sensor array that eliminates blind spots and potentially enhances image resolution.
The KIT team developed printable organic photodiodes that can detect varying wavelengths, enabling color selection and filterless multichannel visible light communication. These sensors are suitable for mobile devices and have the potential to be used in various applications, including the internet of things and Industry 4.0.
Researchers have discovered a new light sensor in green algae that inhibits cGMP production, reducing its concentration. This finding is significant as it mirrors the human eye's response to light, and could lead to breakthroughs in optogenetics.
Researchers found that Rh7 functions as a light sensor governing daily day-and-night activity cycles in fruit flies. The discovery expands the roles of light sensors, which were originally discovered over 100 years ago.
Researchers used the world's most powerful X-ray laser to take snapshots of an ultrafast structural transition in a protein, capturing atomic motions as fast as 100 quadrillionths of a second. The technique could benefit studies of light-driven atomic motions and reveal how visual pigments respond to light.
Researchers at Rensselaer Polytechnic Institute have discovered that single-walled carbon nanotubes (SWCN) emit a loud pop and then ignite when exposed to a conventional photographic flash. This phenomenon, known as the photo-acoustic effect, has been observed for decades but not previously associated with carbon nanotubes.