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Gwangju Institute of Science and Technology researchers reveal the effect of AIN surface pits on GaN remote epitaxy

GIST researchers found that nano-sized pits on AlN surfaces cause graphene degradation at higher temperatures, leading to GaN film exfoliation failure. The study's results demonstrate the importance of substrate chemical and topographic properties for successful remote epitaxy.

SourceGIST (Gwangju Institute of Science and Technology)·JournalACS Nano·TypeExperimental study·DateSep 12, 2023

Simple ballpoint pen can write custom LEDs

A team of researchers has created a simple and versatile fabrication approach for writing custom light-emitting diodes (LEDs) or photodetectors using handheld ballpoint pens. The new technology builds on earlier work, allowing individuals to create stretchable LEDs without specialized training or equipment.

SourceWashington University in St. Louis·JournalNature Photonics·DateAug 10, 2023
SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

Enhanced light absorption in thin silicon photodetectors with photon-trapping structures

A new approach boosts light absorption in thin silicon photodetectors with photon-trapping structures, increasing the absorption efficiency over a wide band in the NIR spectrum. The findings demonstrate a promising strategy to enhance the performance of Si-based photodetectors for emerging photonics applications.

SourceSPIE--International Society for Optics and Photonics·JournalAdvanced Photonics Nexus·DateJul 26, 2023

On-chip infrared circular polarization detector with ultrahigh discrimination

Researchers design a silent state enhanced on-chip infrared circular polarization detector with an ultrahigh circular polarization discrimination ability. The device sets an optoelectronic silent state, suppressing noise and allowing for high sensitivity to light ellipticity change.

SourceLight Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS·JournalLight Science & Applications·DateJul 23, 2023

The Good Fight: Advance in flexible photodetector could improve monitoring of greenhouse gases

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.

SourceARC Centre of Excellence for Transformative Meta-Optical Systems·JournalAdvanced Functional Materials·TypeExperimental study·DateJun 20, 2023

Room-temperature, solid-state synthesis of high-quality Cs3Cu2I5 thin films

Researchers at Tokyo Institute of Technology have successfully synthesized high-quality Cs3Cu2I5 thin films using a novel solid-state synthesis method. The team discovered that depositing CuI and CsI layers in specific ratios results in distinct local structures containing point defects, leading to highly efficient emissions.

SourceTokyo Institute of Technology·JournalJournal of the American Chemical Society·TypeExperimental study·DateMay 19, 2023
Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Researchers detect and classify multiple objects without images

A new technique called image-free single-pixel object detection (SPOD) can detect the location, size, and category of multiple objects without acquiring images. SPOD uses a small optimized structured light pattern to quickly scan the scene and extract features, achieving an accuracy of over 80%.

SourceOptica·JournalOptics Letters·DateMay 3, 2023

New self-powered ultraviolet photodetector

Researchers have developed a novel photoelectrochemical ultraviolet photodetector that can detect two types of ultraviolet light using a multilayered nanostructure. The detector's performance can be regulated through light intensity and external bias, enabling easy adaptation to environmental changes.

SourceSPIE--International Society for Optics and Photonics·JournalAdvanced Photonics Nexus·DateApr 18, 2023

High-performance detectors to combat spies

A team from UNIGE and ID Quantique has developed single-photon detectors that can generate secret keys at a rate of 64 megabits per second, overcoming current limitations. This innovation enables ultra-secure data transfer for banks, healthcare systems, governments, and the military.

SourceUniversité de Genève·JournalNature Photonics·TypeNews article·DateMar 13, 2023

SF State research closes in on next-generation atom-thick photonic devices

The SF State team has created a broadband nanoscale photodetector using bismuth-MoS2 materials, showing improved sensitivity in the UV range and responsiveness over a wide wavelength range. The device is also fast, working at around 10 kilohertz and potentially scalable to megahertz or gigahertz speeds.

SourceSan Francisco State University·JournalAdvanced Photonics Research·DateMar 10, 2023
Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

Researchers use lead recycled from car batteries to make photodetectors

A team of researchers developed an efficient strategy to recycle lead from discarded car batteries, creating a new market for recycled lead in high-tech equipment. The resulting photodetectors show excellent stability and fast response speeds, with potential applications in optical communication, chemical analysis, and imaging.

SourceOptica·JournalOptics Letters·DateFeb 2, 2023

New detector could enable high-speed quantum communication

Researchers have developed a new detector that can precisely measure single photons at very high rates, enabling practical high-speed quantum communication. The PEACOQ detector is made of superconducting nanowires and operates at extremely cold temperatures, allowing for precise measurement of photon arrival times.

SourceOptica·JournalOptica·DateJan 26, 2023

Photon-counting CT enables lower contrast media for aortic imaging

A new study published in Radiology: Cardiothoracic Imaging shows that photon-counting detector CT can acquire high-quality images at lower contrast media volume than conventional CT scanners. The technology reduces the amount of contrast needed for CT angiography, improving image quality and reducing environmental impact.

SourceRadiological Society of North America·JournalRadiology Cardiothoracic Imaging·DateJan 26, 2023
Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

New nanowire sensors are the next step in the Internet of Things

Researchers developed a self-powered nanowire sensor that can detect nitrogen dioxide in the air without power source. The sensor has potential applications in environmental monitoring, healthcare, and industrial safety.

SourceARC Centre of Excellence for Transformative Meta-Optical Systems·JournalAdvanced Materials·TypeExperimental study·DateJan 5, 2023

Wafer-scale 2D MoTe₂ layers enable highly-sensitive broadband integrated infrared detector

Researchers have developed a highly-sensitive broadband integrated infrared detector using wafer-scale 2D MoTe₂ layers. The device achieves an ultrabroadband detection range of up to 10.6 μm and a room-temperature specific detectivity of over 10^8 Jones in the mid-infrared region.

SourceLight Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS·JournalLight Science & Applications·DateJan 5, 2023

Chung-Ang University researchers unveil the mechanism of noise and signal detection, enhancing organic photodetector performance for advanced image sensors

Chung-Ang University researchers identify direct electron tunnelling as dominant mechanism of noise in organic photodetectors, enabling enhanced detection speed and improved image sensor performance. The discovery paves the way for miniaturized image sensors with curved designs and omnidirectional sensing capabilities.

SourceChung Ang University·JournalAdvanced Functional Materials·TypeExperimental study·DateJan 4, 2023

Novel near-infrared light detection method using upconversion materials is demonstrated

Researchers have developed a novel near-infrared light detection method using core-shell lanthanide nanoparticles to convert weak near-infrared light to visible light with high efficiency. This achievement promotes the proposal of a new resource- and energy-saving near-infrared light detection method, improving optical sensor sensitivi...

SourceJapan Science and Technology Agency·JournalAdvanced Photonics Research·TypeExperimental study·DateDec 23, 2022
Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.

Ultra-high-resolution photon-counting detector CT: Reconstruction kernel, slice thickness guide protocol

A study published in the American Journal of Roentgenology found that reconstruction using BI64 kernel and 0.4-mm slice thickness yielded improved bronchial division identification and pulmonary fissure sharpness without loss in pulmonary vessel sharpness or pathology conspicuity.

SourceAmerican Roentgen Ray Society·JournalAmerican Journal of Roentgenology·TypeImaging analysis·DateDec 8, 2022

Researchers develop system for improved latent fingerprint recognition

A research group developed an in-sensor reservoir computing system for latent fingerprint recognition, achieving 100% recognition accuracy even with 15% background noise. The system uses deep ultraviolet photo-synapses and a memristor array to process information in parallel, reducing latency and increasing efficiency.

SourceUniversity of Science and Technology of China·JournalNature Communications·DateDec 2, 2022

Higher speeds in free-space optical communications in the midinfrared band

Researchers developed high-capacity free-space optical links using unipolar quantum optoelectronic devices, achieving unprecedented data rates of up to 30 Gbit/s at 31-meter distances. The system's performance is resistant to weather conditions and showcases potential for fast, long-range optical links.

SourceSPIE--International Society for Optics and Photonics·JournalAdvanced Photonics·DateNov 2, 2022

Carbonized polymer dots enhanced stability and flexibility of quasi-2D perovskite photodetector

Scientists developed a method to introduce carbonized polymer dots into quasi-2D perovskite photodetectors, improving their flexible stability without losing photo-response. The devices showed lower dark current and detectable light intensity, paving the way for high-performance flexible optoelectronic devices.

SourceLight Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS·JournalLight Science & Applications·DateOct 25, 2022
Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

Metalens offers superior off-axis focus

A team at KAUST has created an ultrathin dielectric metalens that improves focusing capabilities and can be scaled down for integration with photonics equipment. The metalens, designed from a custom array of TiO2 nanopillars atop a DBR, offers negligible intrinsic loss and easy fabrication.

SourceKing Abdullah University of Science & Technology (KAUST)·JournalOptica·DateOct 23, 2022

Dual-polarity photoconductivity in semiconductor nanowires

Researchers have created III-nitride/MoSx core-shell nanostructures with negative and positive photoresponsivity under different wavelengths, demonstrating a new universal photodetector architecture. This breakthrough enables spectrally sensitive photoelectrochemical photodetectors for various applications.

SourceLight Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS·JournalLight Science & Applications·DateOct 12, 2022

New photodetector design inspired by plant photosynthesis

The new photodetector design combines long-range transport of optical energy with long-range conversion to electrical current, mimicking the photosynthetic complexes found in plants. The device can gather light from areas of about 0.01 mm² and achieve conversion of light to electrical current over exceptionally long distances of 0.1 nm.

SourceOptica·JournalOptica·DateSep 1, 2022
GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Silicon image sensor that computes

Researchers developed a silicon photodiode array for in-sensor processing, allowing for real-time image filtering and extraction of relevant visual information. The technology has potential applications in machine vision, bio-inspired systems, and intelligent imaging devices.

SourceHarvard John A. Paulson School of Engineering and Applied Sciences·JournalNature Electronics·DateAug 26, 2022

The novel double slot structure gives rise to the enhanced performance of graphene/silicon hybrid photodetector

A graphene photodetector with a double slot structure exhibits high responsivity of 603.92 mA/W and large bandwidth of 78 GHz, addressing the limitations of graphene's low optical absorption. The novel design promotes graphene absorption while minimizing metallic absorption, providing a competitive solution for photodetection on silicon.

SourceCompuscript Ltd·JournalOpto-Electronic Advances·DateAug 10, 2022

Organic polymeric scintillators excite X-ray community

Researchers developed efficient metal-free polymeric scintillators for high-resolution X-ray imaging, outperforming conventional anthracene-based scintillators. The polymers exhibit multicolor radioluminescence and high photostability, enabling applications in radiation detection, medical diagnosis, and security inspection.

SourceSPIE--International Society for Optics and Photonics·JournalAdvanced Photonics·DateMay 17, 2022
Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

Fiber glow brings more go for underwater communications

Researchers from KAUST have designed an all-inorganic halide-perovskite polymer-fiber-photodetector that can detect light in the green region (around 510 nm), enabling fast underwater optical communications. The system offers a 3dB bandwidth of 13.1 MHz, allowing data transmission speeds of up to 152.5 Mbit/s.

SourceKing Abdullah University of Science & Technology (KAUST)·JournalOptics Express·DateMay 15, 2022

On-Chip Photodetection: Two-dimensional material heterojunctions hetero-integration

The study introduces a promising strategy for chip-integrated photodetectors by integrating van der Waals PN heterojunctions of 2D materials on optical waveguides. This approach enables low dark current, high responsivity, and fast speed, while simplifying fabrication processes and reducing costs.

SourceLight Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS·DateMay 13, 2022

Developing inorganic lead-free perovskite for broadband emission

Scientists have successfully developed lead-free bismuth halide perovskites with broadband emission, overcoming toxicity and instability issues of traditional lead-based materials. The new material exhibits high efficiency and stability, paving the way for potential applications in artificial lighting and displays.

SourceBeijing Institute of Technology Press Co., Ltd·JournalEnergy Material Advances·TypeExperimental study·DateApr 28, 2022

UVA-led research team pursues next big leap in radar and GPS systems

A UVA-led research team is working on a photonics-based radar and GPS system that can operate at frequencies up to 110 gigahertz, three times higher than current 5G systems. The system has the potential to provide ultra-stable signals for applications like communications, positioning, and ranging.

SourceUniversity of Virginia School of Engineering and Applied Science·DateApr 27, 2022

Almost ready for prime time: deep UV photodetectors head to real-world testing

Researchers are taking stock of advancements in ultrawide bandgap (UWBG) photodetectors with deep UV capabilities, highlighting their efficiency and potential for solar-blind applications. Further work is needed to optimize device performance, particularly in assembling materials over large area substrates.

SourceAmerican Institute of Physics·JournalJournal of Applied Physics·DateApr 19, 2022
AmScope B120C-5M Compound Microscope

AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.

Special issue of energy material advances on research state of nanocrystals

This special issue of Energy Material Advances highlights recent progress in synthesizing and tuning perovskite nanocrystals and other emerging nanocrystal materials. Research focuses on fundamental understanding of doping, synthesis, and spectroscopy, as well as applications in solar cells and light-emitting diodes.

SourceBeijing Institute of Technology Press Co., Ltd·JournalEnergy Material Advances·TypeExperimental study·DateMar 30, 2022

Light derails electrons through graphene

A team of scientists has discovered a way to bend electrons without applying a magnetic field by using circular polarized light in bilayer graphene. This breakthrough enables new sensing applications and opens up possibilities for infrared and terahertz sensing, medical imaging, and security applications.

SourceICFO-The Institute of Photonic Sciences·JournalScience·DateMar 24, 2022

Perovskites used to make efficient artificial retina

KAUST researchers develop an artificial electronic retina that mimics human vision and recognizes handwritten numbers with high accuracy. The retina uses perovskite nanocrystals to detect light intensity via capacitive change, offering a more energy-efficient alternative to existing systems.

SourceKing Abdullah University of Science & Technology (KAUST)·JournalLight Science & Applications·TypeComputational simulation/modeling·DateFeb 23, 2022

Soft semiconductors that stretch like human skin can detect ultra-low light levels

Researchers at Georgia Institute of Technology created soft flexible photodetectors that are up to 200% stretchable and can detect fainter light levels than conventional devices. The breakthrough material has potential applications in medical wearable sensors, implantable devices, and intelligence systems.

SourceGeorgia Institute of Technology·JournalScience Advances·TypeObservational study·DateDec 15, 2021

Polariton parametric oscillator in perovskite microcavity

Researchers have developed a room-temperature perovskite polariton parametric oscillator, enabling scalable and low-threshold nonlinear devices. This breakthrough offers possibilities for the development of cost-effective and integrated polaritonic devices.

SourceSPIE--International Society for Optics and Photonics·JournalAdvanced Photonics·TypeExperimental study·DateDec 9, 2021
GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

Transparent electrodes without the damage

A KAUST-led team reviewed strategies for mitigating damage to transparent electrodes in optoelectronic components. The team identified buffer layers as a potential solution, with strengths and weaknesses of different materials and techniques for creating them.

SourceKing Abdullah University of Science & Technology (KAUST)·JournalMatter·DateNov 30, 2021

Capturing light: New ergonomic photodetector for the trillion-sensor era

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.

SourceIncheon National University·JournalSmall·TypeExperimental study·DateSep 27, 2021

Silicon/2D-material photodetectors: from near-infrared to mid-infrared

Recent progresses of silicon/2DM PDs are reviewed for their potential applications in various functional photonic integrated circuits. The article discusses the operation mechanisms, device configurations, and application scenarios of these photodetectors.

SourceLight Publishing Center, Changchun Institute of Optics, Fine Mechanics And Physics, CAS·JournalLight Science & Applications·DateAug 24, 2021
Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

UVA Engineering researchers join quest to demonstrate photonic systems-on-chip

Researchers at UVA's Charles L. Brown Department of Electrical and Computer Engineering are working on a project called PATRONUS, which aims to integrate photonic integrated circuits into a single chip. This could lead to faster data centers and next-generation wireless communication systems.

SourceUniversity of Virginia School of Engineering and Applied Science·DateJul 27, 2021

High performance polarization sensitive photodetectors on 2D β-InSe

Researchers have developed high-performance polarization-sensitive photodetectors on 2D β-InSe, exhibiting excellent stability and strong anisotropic optical and electronic properties. The material's unique crystal structure enables direct detection of polarized light without optical filters or polarizers.

SourceScience China Press·JournalNational Science Review·DateJul 13, 2021
DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

Multi-inch single-crystalline perovskite for self-powered integrated circuit photodetection reported

Researchers developed a method to suppress phase segregation in large perovskite single crystals, yielding state-of-the-art devices with long carrier lifetime and high charge mobility. The resulting photodetectors exhibited high responsivity, photoconductive gain, and fast response speed, paving the way for novel imaging applications.

SourceDalian Institute of Chemical Physics, Chinese Academy Sciences·JournalScience Advances·DateFeb 10, 2021

Researchers design next-generation photodetector

Researchers at Northwestern University have developed a new approach to quantum device design, producing the first gain-based long-wavelength infrared photodetector using band structure engineering. The advanced photodetector offers enhanced sensitivity for next-generation LWIR photodetectors and focal plane array imagers.

SourceNorthwestern University·JournalLight Science & Applications·DateFeb 2, 2021

Reducing traps increases performance of organic photodetectors

Organic photodetectors (OPDs) have shown high efficiency but are limited by trap states that cause noise in the off state. Research has identified traps as a major factor in OPD performance. The study provides guidance for further research into understanding and mitigating these limitations.

SourceTechnische Universität Dresden·JournalNature Communications·DateJan 22, 2021
Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

Scientists develop method to detect charge traps in organic semiconductors

Researchers at Swansea University developed a new method to detect tiny signatures of 'charge traps' in organic semiconductors, which may improve the performance of solar cells, photodetectors, and OLEDs. The study found that charge traps can generate new charges rather than annihilate them completely.

SourceSwansea University·JournalNature Communications·DateNov 4, 2020
Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

Thin and ultra-fast photodetector sees the full spectrum

Researchers at RMIT University developed a hyper-efficient broadband photodetector that can see all shades of light, shrinking it by 1,000 times while maintaining speed and low-light sensitivity. The device has potential applications in biomedical imaging, motion detection, and fibre optic communication.

SourceRMIT University·JournalAdvanced Materials·DateSep 22, 2020