Researchers created an innovative imaging system with a deformable lens and iris-like component, allowing for precise control of light focus. The device focuses light almost as well as the biological counterpart in people, with potential applications in medicine and scientific research.
A recent study tested fiber-optic sensors on a 36-km stretch of high-speed commuter railroad lines in Hong Kong, detecting over 10 million measurements and identifying anomalies such as excessive vibrations and mechanical defects. The system saves the rail company around $250,000 annually in maintenance costs.
Researchers at the University of Texas at Austin have created a biological imaging system that can track blood flow in the lab and clinic using a webcam and laser pointer. The new system is significantly cheaper than existing equipment and has potential applications for imaging changes in tissues, including those outside the lab.
Researchers from the University of California, San Diego have developed a miniature camera system that achieves optical performance comparable to full-size wide-angle lenses. The system uses monocentric lenses made of concentric glass shells to produce wide-angle images with high resolution and minimal distortions.
Researchers have developed a wastewater treatment device that uses spinning CDs coated with zinc oxide nanorods to break down organic pollutants in sewage. The device can treat contaminated water at an impressive rate of 150 mL per minute, making it a promising solution for small-scale water purification.
A new optical device can identify the contents of intravenous (IV) fluid lines in real-time, offering a promising solution to prevent medication errors. The device uses Surface-Enhanced Raman Scattering (SERS) technology to detect molecular signatures of drugs and confirm their presence.
Researchers have developed a new optical imaging technique to track molecular movement, cell abnormalities, and fluid dynamics within tumors. This approach combines two high-tech methods to provide unprecedented insights into human cancer biology and aid in drug discovery.
Scientists have developed a new technique to slow down light by embedding dye molecules in a liquid crystal matrix, allowing for more efficient sensing and interferometry applications. The method uses little power, operates at room temperature, and can measure extremely low speeds in just one second of measurement time.
Researchers have developed a new method to insert DNA into living cells with greater-than-ever control, using a combination of femtosecond lasers and optical tweezers. This technique allows for precise pokes on the surface of a single cell and gentle insertion of DNA.
Researchers have deciphered the color-creating mechanisms in butterfly wings, revealing subtle differences in crystal parameters that result in stunningly varied patterns of color. These findings could inspire new hue-changing materials with designer properties.
Researchers have created a slim, telescopic contact lens that can switch between normal and magnified vision, offering AMD patients a relatively unobtrusive way to enhance their vision. The system uses a modified pair of liquid crystal eyeglasses to selectively block either the magnifying portion or its unmagnified center.
Researchers from the University of Louisville have developed new materials and production methods for commercially feasible quantum dot LEDs, increasing efficiency and color range. The innovative inkjet printing technique enables mass production, making these green lighting devices potentially affordable.
Cornell University engineers have developed a new smartphone-based system for in-the-field detection of Kaposi's sarcoma and other conditions, utilizing a plug-in optical sensor and disposable microfluidic chips. This novel technique provides a quick method to quantify viral DNA levels, requiring minimal training and expertise.
A new approach using low irradiance ultra-violet (UV) light has been developed to slow down the rot of strawberries, doubling their shelf life from five to nine days. This technology uses a novel device incorporating light-emitting diodes (LEDs) that emit UV at wavelengths found in sunlight.
Researchers developed optics-based methods for determining viral load by counting individual virus particles, allowing for faster and cheaper testing. These new methods could conduct measurements in a medical office or hospital instead of a laboratory, providing rapid results and fast turnaround.
Researchers have developed a new resin that can be molded into complex, highly conductive 3-D structures with features just a few micrometers across. The resin holds promise for making customized electrodes for fuel cells or batteries, as well as biosensor interfaces for medical uses.
Theorists have found new methods to determine the likelihood of quantum encryption scheme failure, enabling device-independent cryptography. This allows for the estimation of failure probabilities without relying on assumptions about the reliability of devices.
A new portable and real-time airborne asbestos detector has been developed using a laser-based light scattering technique. The device can identify asbestos fibers on-site, reducing the risk of lung cancers such as mesothelioma.
A new LED streetlight design harnesses high-efficiency LEDs to provide uniform illumination while minimizing light pollution and glare. The design achieves an optical utilization factor of 51-81 percent, reducing light pollution by up to a fifth.
A new camera system uses low-power infrared laser light to gather high-resolution, 3D information about objects from up to a kilometer away. The system resolves depth on the millimeter scale over long distances, making it suitable for imaging man-made targets such as moving vehicles.
Researchers expose laboratory-grown human skin to intense THz radiation and detect DNA damage markers. They also observe increases in tumor-suppressing proteins facilitating DNA repair.
A new splicing technique offers an automated way to align and connect multicore optical fibers with minimal signal quality loss. This method enables the production line deployment of these high-capacity fibers, which can carry up to 10 terabits per second.
Engineers at AT&T Labs have devised a new technique to enable 400 Gb/s signals to be transmitted over ultra-long distances using current-generation systems. The team successfully transmitted 400 Gb/s signals over a record-breaking 12,000 km distance.
Researchers at IBM have developed a prototype optical link that shatters the previous power efficiency record by half, paving the way for faster supercomputers. The link operates at 25 gigabits per second using just 24 milliwatts of total wall-plug power.
Researchers develop a new dynamic network management system that can redirect traffic-congesting connections in real-time, improving network efficiency. The system combines OpenFlow and PCE technology to provide efficient solution for operating transport networks.
A new imaging technique using infrared digital holography allows firefighters to see through thick veils of smoke and walls of flame to find people in need of rescue. The system can capture a live, 3-D movie of the room and its contents, enabling the detection of moving people.
The new device uses a polymer sheet with fluorescent particles to capture incoming light and channel it to an array of sensors. This allows for the creation of high-resolution images without any internal components or electronics. The technology has potential applications in user interface devices that can respond to gestures alone.
A new optical prescription for automobile side-view mirrors eliminates blind spots without distorting the perceived distance of cars approaching from behind. The design features a horizontally progressive mirror with three resolution zones, offering a greatly expanded field of view and reliable depth perception.
A team of researchers from Australia and France has developed a novel manufacturing technique to create uniform silica wires through self-assembly. The technique enables the combination of silica with any material, paving the way for new applications in sensing, photovoltaics, optical switches, and photon sources.
Researchers developed a bio-inspired coating that enhances LED light extraction by up to 55 percent. The innovative design mimics the natural structure of firefly lanterns, which reduces internal reflections and allows more light to escape, ultimately making LEDs brighter while using less energy.
Researchers developed a new nanomechanical dual-core optical fiber that can enhance data processing and serve as sensors by applying mechanical pressure. The fibers' internal core structure is designed to be dynamic, allowing for precise motion control and harnessing the fundamental properties of light.
Researchers use harmonic generation microscopy to create high-resolution maps of skin cells, revealing increased sizes of basal keratinocytes and nuclei with natural aging. The findings provide an index for scoring natural or intrinsic skin aging, which could help monitor skin health and test effectiveness of anti-aging treatments.
The Optics Express Special Issue on ECOC 2012 features in-depth versions of 134 papers from the conference, covering topics such as multicore components and hybrid optoelectronic devices. The issue includes submissions from 37% of authors of the 350+ papers presented at the conference.
Researchers have created a fiber-optic equivalent of the world's smallest wrench, enabling precise control over microscopic particles like living cells and DNA. This new technique uses flexible optical fibers to twist and turn particles in any direction, promising advancements in biological research, healthcare, and more.
A new hyperspectral camera has captured the first-ever images of auroras, revealing a previously unknown atmospheric phenomenon. The camera's unprecedented capabilities have enabled scientists to study auroras in unprecedented clarity, revealing subtle changes in atmospheric behavior.
Scientists have developed a new tool that can deliver precise points of light to a 3-D section of living brain tissue, allowing for unprecedented control over individual neurons. This technology, called optogenetics, has the potential to treat conditions such as Parkinson's disease and epilepsy.
Researchers have developed a new artificial lens that mimics the natural lens of the human eye, enabling incremental refraction control. This breakthrough could improve performance in implantable lenses and consumer vision products, as well as enhance ground and aerial surveillance technology.
Scientists visualize stresses induced by flowing blood in an embryonic heart for the first time, revealing how and why heart defects develop. The technique promises new insight into congenital heart defects such as abnormal valve formation.
Two teams explore using natural silk for implantable sensors, compostable lasers, and microfibers integrated into photonic chips. Silk's optical properties make it an attractive material for biocompatible and biodegradable applications.
A compact, portable Raman spectrometer using a green laser pointer detects extremely minute traces of hazardous chemicals in real-time. The system's modular design enables rapid field deployment to disaster zones and areas with security concerns.
Researchers have made precise measurements without disturbing the system, providing direct experimental evidence that a new measurement-disturbance relationship is more accurate. This finding has significant implications for fields like quantum cryptography.
Engineers from the University of Illinois at Urbana-Champaign have created a new handheld scanner that enables primary care physicians to image various sites in 3-D, including bacterial colonies and retinas. The device uses optical coherence tomography (OCT) technology to produce real-time images.
Researchers have developed specialty contact lenses that can induce changes in eye growth and refractive state to reshape the eye in the desired way. These lenses successfully reduced the elongation of the eye causing myopia progression, providing a potential breakthrough in treating nearsightedness.
A new 'smart' surgical tool combines advanced technology with human hand precision to minimize surgical accidents. The device uses an optical fiber sensor to compensate for hand tremors, allowing for accurate and precise movements during delicate procedures.
Researchers developed an advanced optics system to noninvasively map out the network of tiny blood vessels beneath the outer layer of patients' skin, potentially revealing telltale signs of disease. The imaging system shows promise for clinical application in diagnosing and treating skin cancer.
A new laser-based system can propel tiny, precise streams of medicine into the skin with minimal force, potentially eliminating pain from injections. The device uses an erbium-doped yttrium aluminum garnet laser to create a vapor bubble that forces drug-laden jets into the targeted depth of the skin.
A new noninvasive imaging technique, dynamic diffuse optical tomography imaging (DDOT), uses near-infrared light to map hemoglobin concentration in tissue, revealing effective blood flow to patients' hands and feet. DDOT has the potential to diagnose PAD earlier, allowing for medication and lifestyle changes to alleviate the disease.
A team of Italian researchers has developed a new microscopy technique called confocal light sheet microscopy (CLSM) that improves the resolution and contrast of images of the brain's neural pathways. CLSM enables scientists to obtain high-resolution views of tissue samples with a resolution of a few microns and faster acquisition time.
Researchers have developed a new 3D display technology that eliminates the need for glasses, using a single front projector against a screen to create depth cues. The method, which uses polarizers and a specialized coating on the screen, shows promise for cost-effective and space-efficient 3D displays.
A new sensor uses a phenomenon called photoacoustic effect to detect and identify chemicals, including nerve agents. The system can identify multiple agents simultaneously in real-time, with potential applications for detecting hazardous gases.