Senior governmental officials from Scotland and California met during COP26 to discuss a dense network of optical sensors for real-time monitoring of greenhouse gas emissions. This will provide local leaders with essential information to support strategic policy decisions.
The GEMM Initiative aims to bridge the gap between science and policy by providing local governments with actionable, real-time greenhouse gas and pollution emission data. This will enable policymakers to make informed decisions on reducing climate change and air pollution in their cities.
Researchers have developed a fast and energy-efficient laser-writing method for producing high-density nanostructures in silica glass, enabling 5D optical data storage that is more than 10,000 times denser than Blue-Ray disc storage technology. The new approach can write tens of gigabytes of data in a reasonable time, with the ability ...
Researchers develop label-free virtual microscopy images that allow detailed visualization of tissue without staining procedures. The new technique provides realistic images that could help reduce the need for repeat surgeries by enabling histopathology analysis during surgery.
Researchers have developed a tiny chip-based device that uses two-mode squeezing to create unconditional entanglement between continuous optical fields. The new microcomb has been tested and found to exhibit raw squeezing of 1.6 dB, with potential for further improvement by reducing system losses.
Researchers created tiny chip-based optical tweezers that can be used to optically levitate nanoparticles in a vacuum, reducing the footprint of traditional optical traps. The new design enables precise sensing applications and has potential uses for studying near-surface forces and quantum processes.
Researchers demonstrated record-long-distance quantum key distribution (QKD) protocol over a 605-kilometer fiber using twin-field QKD and new signal stabilization technique. This achievement enables the transmission of highly secure information between cities.
Researchers have developed frequency translating add/drop filters that can shift the frequency of light signals, enabling new applications in data communication, quantum computing and optical neural networks. The filters exhibit low cross-talk and can be optimized for practical use.
Researchers have demonstrated a new wavelength-tunable, silicon photon-pair source integrated with a pump rejection filter in a single CMOS chip. The device represents an important step toward an entangled photon source that incorporates active photonic devices and feedback control circuits on the same CMOS chip.
Scientists have successfully created a record conversion efficiency of 6% for THz generation in organic crystals pumped with mid-IR pulses, enabling direct manipulation of quantum dots. The generated terahertz field drives electro-absorption modulation in CdSe/CdS quantum dots, resulting in a significant change in transmission.
Researchers have developed a fiber-laser system that can generate isolated attosecond pulses with unprecedented parameters, enabling studies of extremely fast or high-power light-matter interactions. The laser emits 300-fs pulses compressed to few-cycle regime using multi-pass cells, achieving stable CEP operation.
Researchers develop a highly accurate method to assemble multiple micron-scale optical devices on a single chip, enabling practical manufacturing of chip-based optical systems. The new approach allows integration of different materials on a single chip, paving the way for compact optical communications and imaging devices.
Researchers developed a new system that can detect silicon solar panel defects even in full sunlight, making it easier to keep solar panels working optimally. The system uses a unique combination of hardware and software to image and analyze defects quickly and accurately, regardless of lighting conditions.
Researchers designed electromechanically reconfigurable ultrathin optical elements that can be controlled on a pixel-by-pixel level. These versatile metasurfaces could offer a new chip-based way to achieve nanoscale control of light, leading to better optical displays and information encoding.
Researchers develop prototype display that combines multifocal and integral imaging to create ultra-high definition 3D images with almost diffraction-limited resolution. The new approach enables large, high-definition 3D images for digital signs, entertainment, education, and immersive experiences.
A new compact system enables real-time, in-line 3D inspection of surfaces with micron-scale precision, enhancing quality control in industrial production. The system combines a fast steering mirror and high precision 1D confocal chromatic sensor to create a compact and lightweight measurement tool weighing just 300 grams.
The OSA Advanced Photonics Congress will discuss the latest developments in integrated photonics, including photonic device research and their applications in networks. Renowned speakers will present on topics such as quantum science, free space communications, and artificial intelligence.
Researchers developed nanoscale sensors that can convert brain electrical activity into optical signals detectable outside the body. These sensors, called NeuroSWARM3, offer a non-invasive way to track brain activity and could one day enable people with physical disabilities to interact with the world and control wearable technology.
Researchers have developed new algorithms to record and display color in digital images with greater realism. The methods improve color accuracy for electronic displays and create more natural LED lighting.
Researchers developed a compact cold-atom source with low power consumption that can be used in various quantum technologies. The device features an adjustable design that simplifies optics and improves measurement accuracy.
The researchers developed a filter that can freely switch between modes such as selective filtering and passing, expanding the usefulness of microfluidic devices. The magnetic material was used with a precise 3D printing technique to create the tiny turning filter, which can be remotely manipulated on demand.
Scientists developed a method to dynamically switch liquid metal surfaces between reflective and scattering states using electricity. This technology could be used to create electrically controllable mirrors or illumination devices, enabling new applications in art and advanced devices.
Scientists demonstrate a new technique to sense geophysical events using transoceanic fiber optic cables, offering potential for early warnings of tsunamis and earthquakes. The method measures tiny changes in polarization of transmitted light, enabling monitoring of previously inaccessible ocean depths.
A field trial demonstrates a stable and efficient quantum key distribution (QKD) system that can generate quantum-secure cryptographic keys at sustained rates over a standard telecommunications infrastructure. The system, developed by researchers in Italy, is designed to be easy-to-operate and integrate into existing optical networks.
Researchers developed a near-infrared camera system that can detect Burmese pythons up to 1.3 times farther away than traditional visible-wavelength cameras, providing a new tool for removal efforts and expanding detection capabilities day and night.
Xiaosheng Zhang received the $1,500 grand prize for his outstanding work on a silicon photonics focal plane switch array for optical beam steering. He will present his research at the Optical Fiber Communication Conference and Exhibition in June.
The OSA Foundation and Corning Incorporated have awarded three women graduate students with $5,000 scholarships to support their research in optical communications and networking. The recipients will present their work at the Optical Fiber Communication Conference and Exhibition.
Researchers have developed a new technique called diffuse optical localization imaging (DOLI) that enables noninvasive imaging of the brain's microvasculature and neural activity at depths of up to 4 millimeters. This method uses the NIR-II window and is poised to bring new insight into how the brain works in health and disease.
Scientists have developed a method to create highly precise and complex miniature lenses using 3D printing, enabling small and lightweight cameras. The new apochromatic lens design reduces chromatic aberrations, improving imaging performance and quality in medical endoscopes.
Researchers have demonstrated a record-high laser pulse intensity of over 1023 W/cm2 to study complex interactions between light and matter. This achievement will enable exploration of high-energy cosmic rays and the development of new sources for cancer treatment.
Researchers developed a new x-ray optics-on-a-chip device that can modulate X-rays at speeds up to 100 times faster than conventional devices. The tiny device, weighing just 3 micrograms, has the potential to capture fast chemical, material and biological processes.
A new technique uses a laser to create colorful strokes on metal, offering a way to change or erase colors. The approach creates miniature art with complex meaning through shape and color, as well as microstructures on the surface.
Scientists have developed a new microscopy technique that can acquire 3D super-resolution images of subcellular structures deep inside biological tissue, including the brain. This breakthrough enables researchers to study subtle changes in neurons over time, during learning, or as a result of disease.
Researchers developed a new intravascular imaging technique, ILSI, which can detect unstable coronary plaques. The technique provides a direct assessment of mechanical stability, allowing for early detection and treatment of high-risk vulnerable plaques.
A new imaging method has been developed that can capture high-resolution images of photoreceptors in the human eye, overcoming resolution limitations imposed by light diffraction. The technique uses annular pupil illumination and sub-Airy detection to enhance microscopy techniques for earlier detection and treatment of eye diseases.
Researchers developed a new sensor using interband cascade light emitting device (ICLED) to detect methane concentrations as low as 0.1 parts per million. The ICLED-based sensors could be used to monitor emissions from livestock and dairy farms, and enable more accurate climate crisis monitoring.
The new sensor measures small pressure changes in the body with high sensitivity and can detect pressure changes of just 2 kilopascals. It is designed to be implantable for long-term health monitoring and has a resolution of 2.0 kilopascals.
A new plasmonic metasurface achieves unprecedented centimeter-scale efficiency, boosting absorption and emission of light. This design overcomes limitations of nanoscale properties, enabling practical applications in ultrafast optoelectronics devices and fluorescence-based biosensors.
Researchers have developed a novel inkjet printing method to fabricate biocompatible polymer microdisk lasers for biosensing. The approach allows for the production of both laser and sensor in an open-air environment, enabling on-site biosensing for health monitoring and disease diagnostics.
A new study optimizes LIBS for analyzing hydrogen isotopes in nuclear reactor materials, enabling faster and more accurate measurements. The researchers found that combining ultrafast laser pulses with specific environmental conditions improves the technique's performance.
Researchers developed a new approach to improve holographic display technology, combining software and hardware advancements. Michelson holography uses two phase-only SLMs to create higher-quality images, overcoming limitations of existing technologies and enabling compact devices for virtual and augmented reality applications.
Researchers developed low-cost, mass-producible metamaterial tiles to absorb environmental emissions and improve telescope sensitivity. The tiles enabled unprecedented sensitivity in measuring the cosmic microwave background, transforming our understanding of the universe's beginning and evolution.
Researchers demonstrate that Raman spectroscopy can distinguish between healthy tissue, OSCC, and non-cancerous lesions with high accuracy. The technique could enable non-invasive cancer screening in the dentist's chair, reducing diagnostic delays and invasive procedures.
A new laser-based process allows for the 3D printing of intricate glass parts with high precision and resolution. The technique uses multiphoton polymerization, which enables the creation of complex shapes without layer-by-layer buildup.
The new approach uses dynamic LED lighting to create 3D images without requiring complex synchronization. The researchers achieved a reconstruction error of just 2.6 millimeters using a smartphone and commercially available LEDs.
A new bio-inspired medical endoscope has been developed to acquire 3D visible light and near-infrared fluorescence images simultaneously, aiding surgeons in pinpointing cancerous tissue. The instrument combines high-resolution 3D imaging with the mantis shrimp's capability to detect multiple wavelengths of light.
A new system provides a practical method for measuring how breath travels when people talk or sing, which could inform the effectiveness of face masks and distancing requirements. The technique uses electronic speckle pattern interferometry to visualize temperature differences between exhaled breath and surrounding air.
Researchers developed a new type of hollow core optical fiber, known as nodeless antiresonant fiber (NANF), to overcome performance limitations in resonator fiber optic gyroscopes. The new gyroscope achieves significant improvements in stability, enabling precise navigation systems for various applications.
Entangled photon-based mid-infrared imaging improves penetration depth in highly scattering materials, enabling non-destructive testing and analysis of ceramics and paint samples. The technique produces high-quality 2D and 3D images using a compact optical setup.
Researchers have developed a sensitive optical method to detect formaldehyde in exhaled breath, which could lead to an inexpensive and fast way to screen for lung and breast cancer. The new approach uses multipass spectroscopy with optical fringe quenching technique, allowing detection of formaldehyde at low concentrations.