Articles tagged with Wavelengths
Researchers analyzed images from the Russian spacecraft RadioAstron and found small spots in the overall image, which they call substructure. This phenomenon can be used to infer the actual size of the underlying source, including the black hole's emission region.
Scientists use NASA's Solar Dynamics Observatory to study a gigantic filament on the sun, which can last for days or weeks. The filament is 1 million miles wide and appears in different temperatures and wavelengths of extreme UV light.
The researchers used acoustic waves to communicate with an artificial atom, demonstrating phenomena from quantum physics. The study could potentially harness quantum physics to create faster computers by controlling and studying quantum electrical circuits.
Researchers at Berkeley Lab set a new record for X-ray microscopy, achieving resolutions of five nanometers using soft X-rays and ptychography. This breakthrough enables the visualization of chemical phase transformations and mechanical consequences at the nanoscale.
Scientists discovered a new subgroup of cyanobacteria that can absorb and use far-red light for photosynthesis, replacing 17 proteins in three major complexes. This process has a dramatic effect on the organism's physiology and metabolism, producing 40% more oxygen.
Researchers at Michigan State University developed a transparent luminescent solar concentrator that can be used on buildings, cell phones, and other devices. This technology absorbs specific nonvisible wavelengths of sunlight and converts it to electricity.
Scientists observed six minutes worth of data from NASA's EUNIS mission, gathering strong evidence for nanoflares as the source of the sun's corona heat. The detection is consistent with only one current theory: constant bursts of impulsive heating provide the mysterious extra heat.
NASA has chosen a team at Goddard Space Flight Center to build its first Earth science-related CubeSat mission, known as IceCube. The tiny payload will test a new submillimeter-wave receiver that could help advance scientists' understanding of ice clouds and their role in climate change.
A Northwestern University team has developed a new technology using indium arsenide/indium arsenide antimonide (InAs/InAsSb) for stable infrared detection, enabling the observation of cooler objects in deep space. This advancement paves the way for enhanced exploration and unlocking the mysteries of these cooler objects.
Researchers at TUM and UT Austin developed nonlinear mirrors that reflect frequency-doubled output using input light intensity as small as a laser pointer. The new materials produce approximately one million times higher intensity of frequency-doubled output compared to traditional materials.
Researchers at NIST and University of Michigan develop a new method to image electric fields at resolutions far below RF wavelengths using laser light and rubidium atoms. The technique maps RF field strength as a function of position at resolutions as low as one-hundredth of an RF wavelength, far below normal antenna limits.
Researchers studied the competition of multiple Gortler modes in hypersonic boundary layers, highlighting the importance of the trapped-layer mode (mode T) in flow transition. The study found crossovers between mode T and W with specific parameters.
Researchers have discovered a way to use existing semiconductors to detect a wider range of light, including infrared. This technology allows for improved detectors and solar cells that can absorb infrared light.
A new iPhone app called Entrain offers custom schedules of light and darkness to help travelers adjust to new time zones. By following these schedules, users can reduce their jet lag recovery time by up to three days.
Research shows that even low-energy radiation can cause DNA damage, including double-strand breaks, which are often irreparable. Industry characterization of 'eye-safe' lasers at wavelengths longer than 1300nm is flawed, as these wavelengths can induce damage to DNA in the eye
A new formula to calculate hue has been developed, providing accurate results for color analysis in biological studies. This improvement is crucial for research involving flower and fruit development, plant nutrient deficiencies, and responses to heat and drought stress.
A new study revealed that marine algae can detect a range of colors beyond red light, allowing them to adapt to changing environments. This innovation has significant implications for understanding photosynthetic life and potentially improving food production by teaching crops to grow in various light conditions.
High-resolution satellite images successfully counted southern right whales off the Argentinian coast, using automatic detection methods that outperformed traditional manual detection. The study's findings suggest this new approach could be applied to other whale species and marine mammal populations.
Researchers at the University of Illinois discovered that modeling secondary light emission as Raman scattering can predict its dependence on laser power and wavelength, leading to improved biological and medical imaging modalities. This breakthrough has significant implications for surface-enhanced Raman scattering.
A new quantum lithography protocol developed by George Miroshnichenko improves the resolution of photolithography technology. The protocol addresses physical limitations caused by light diffraction, allowing for narrower stripes and higher-contrast edges on semiconductors.
A RIKEN research team successfully generated two-color X-ray laser pulses in the hard X-ray region, showcasing improved tunability and spatial separation. This achievement will facilitate investigations into ultrafast chemistry, plasma physics, and astrophysics.
Researchers at UWM have discovered that near-infrared (NIR) and blue light can repair tissue in dramatically different ways, but both act on the same enzyme in the cell's energy supply center: the mitochondria. NIR light has been shown to improve MS symptoms in rodent models, while blue light kills bacteria that cause infection.
The Sunrise mission revealed complex patterns in the chromosphere, including dark regions and bright points thought to be magnetic flux tubes. The ultraviolet radiation from the chromosphere is highly suitable for visualizing detailed structures and processes.
A team of researchers led by Weining Man has developed a two-dimensional disordered photonic band gap material that can manipulate the flow and radiation of light. The material breaks away from traditional photonic crystals, allowing for arbitrarily shaped paths to steer light.
Researchers have discovered that female Doryteuthis opalescens squid display male-like iridescent stripes that may help them evade male aggression. These unique markings are achieved through the activation of switchable leucophores and tunable iridocytes, which can produce a range of colors in response to neurotransmitters.
The Monitoring Trends in Burn Severity project uses Landsat data to quantify large fires nationwide, providing long-term burn severity maps. Researchers investigate fire behavior changes over years using the valuable data, revealing increasing fire activity in the western US.
A study published in The Journal of Neuroscience found that hamsters exposed to red light had significantly less evidence of depressive-like symptoms compared to those exposed to blue or white light. The researchers believe this may have important implications for humans, particularly those working night shifts.
The IRIS mission provides state-of-the-art observations of the interface region, revealing fine structures and energy transport mechanisms. The data will help scientists understand how the sun's lower atmosphere powers solar events and impacts Earth's climate.
The Landsat satellite has been collecting millions of images for over 40 years, providing a wealth of data on Earth's surface. With the launch of Landsat 8, scientists can now access images that are accurate and consistent with previous missions, allowing for more detailed analysis and research.
IRIS will provide high-resolution images and spectra to unravel the interface region, allowing scientists to track solar material as it is accelerated and heated. The mission enables the observation of temperature ranges from 5,000 to 10 million kelvins.
Researchers at University of Illinois developed a cradle that uses iPhone's built-in camera and processing power as a biosensor to detect toxins, proteins, bacteria, viruses and other molecules. The device can perform on-the-spot tests for environmental toxins, medical diagnostics and food safety.
A new spectral band on NASA's Landsat satellite helps identify high-altitude cirrus clouds, allowing scientists to account for their impact on data. The feature enables users to disregard cloudy images or correct data from other spectral bands, ensuring accurate results.
A new semiconductor device has been created that can emit two distinct colors, opening up the possibility of using LEDs universally for cheap and efficient lighting. The device is more energy efficient than traditional LEDs as it emits light in a narrower spectral line.
The HyspIRI airborne campaign collects data on California's diverse regions, revealing the unique spectral signature of each pixel. Scientists aim to understand ecosystem diversity and function using this technology, which will also be used for detecting land types and processes like fire and drought.
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.
A 18-mile-long feature with a distinct mineral signature has been discovered in the Copernicus crater on the Moon's near side. The finding suggests that pre-existing mineralogical diversity is not always blended away by large impacts, contradicting long-held assumptions.
The researchers designed nanostructured metamaterials that can control device performance across a range of frequencies. They achieved this by introducing nanonotches in the corners of the fishnet holes to create flexibility in independently controlling permittivity and permeability.
The Landsat Data Continuity Mission (LDCM) has released its first images of Earth, revealing stunning natural-color scenes and thermal infrared bands. The new data will aid in water management by detecting temperature differences across the land surface.
A team of astronomers has found galaxies producing stars at a prodigious rate when the universe was just a billion years old. The discovery, enabled by the Atacama Large Millimeter Array (ALMA), provides valuable data for refining theoretical models of star and galaxy formation in the early universe.
Astronomers use ALMA to detect 26 distant galaxies, revealing the most distant detection of water in the cosmos. The findings show that star birth bursts occurred much earlier than previously thought, with some galaxies as bright as 40 trillion Suns.
Astronomers use ALMA to observe distant starburst galaxies, detecting water in one for the first time. The team finds that these galaxies formed stars at a furious pace 12 billion years ago, earlier than previously thought.
The Solar Coronal Imager (Hi-C) has provided a major piece of the solar corona puzzle by capturing images of magnetic reconnection. This complex process heats the corona to temperatures up to 7 million degrees F, powered by magnetic fields that constantly warp and collide in bursts of energy.
Researchers at Harvard University have created a new device that can detect and distinguish between different types of twisted light waves, which can add an extra level of multiplexing to communication systems. This could potentially increase the rate of data transmission over limited bandwidth.
Researchers demonstrate Anderson localization of light for the first time, showing waves no longer spread if defects are within one wavelength apart, exceeding previously thought threshold.
Researchers at Stanford University School of Engineering have designed a novel light aperture that can stably trap objects as small as 2 nanometers using plasmonic technology. The device uses a silver and silicon dioxide structure to focus light and create a powerful, concentrated beam that can trap tiny particles.
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.
A recent study found that dust's longwave radiation absorption causes more than half of the cooling effect to be countered by warming. This regional phenomenon has significant implications for understanding dust's influence on climate and moisture fluctuations.
New techniques using ALMA and laboratory technology identify specific molecules in star-forming regions. Scientists can now analyze the unique patterns of wavelengths emitted or absorbed by molecules, enabling studies that were previously impossible.
The new resonator creates purest, brightest and most powerful single-mode quantum cascade lasers in the 8-12 micron range, a wavelength of great interest for military and industrial use. The laser technology controls both wavelength and beam quality, achieving peak power over 6 watts with nearly diffraction-limited beam quality.
Researchers at Harvard University have created an ultrathin flat lens that focuses light without imparting distortions, approaching the physical limit set by diffraction laws. The device is scalable and simple to manufacture, making it a promising new technology for fiber-optic communications.
Scientists at SLAC National Accelerator Laboratory have improved the Linac Coherent Light Source (LCLS) by using a diamond filter to create narrower X-ray wavelength bands, enabling sharper images of materials and molecules. This advancement promises to speed discoveries and add new scientific capabilities.
A new technique developed by NASA scientist Nicholeen Viall uses color-coded images to track the 12-hour history of cooling and heating on the sun. The technique reveals that coronal heating is likely caused by numerous nanobursts of energy, lending credence to those theories.
Researchers at Columbia Engineering demonstrate graphene's remarkable optical nonlinear behavior, enabling broad applications in optical interconnects and low-power photonic integrated circuits. The graphene-silicon hybrid device achieves radio frequency generation with a resonant quality factor more than 50 times lower than what other...
SACLA boasts the shortest wavelength in the world, an extremely broad wavelength range, and a high peak output of 10 GW. Its unique design and original Japanese technologies enable its remarkable performance despite a compact size of only 700 meters.
Researchers at Sandia National Laboratories created a solar nanowire array that can absorb a wider range of the sun's wavelengths, leading to increased efficiency. The array, grown on a phalanx of nanowires, allows for higher indium percentages and lower absorption base energies.
Researchers develop Thermal Quasi-Reflectography (TQR) system, capturing features not visible with current imaging techniques. The TQR system revealed hidden details in famous artworks, including the Zavattari frescos and 'The Resurrection' by Piero della Francesca.
An international team produced a coherent beam that includes X-rays for the first time using a setup on a laboratory table. The researchers converted part of the original laser energy into a super-continuum of light extending well into the X-ray region, enabling the study of fastest physical processes in nature.
Researchers at Arizona State University have discovered a faint infant galaxy 13 billion light-years away, revealing insights into the early universe's formation. The team, led by Sangeeta Malhotra and James Rhoads, identified the galaxy using a unique technique that allows for sensitive searches in infrared wavelengths.
A study reveals that urban rail traffic induces significant environmental vibrations in the short wavelength range, caused by uneven wheel-rail contact. The researchers found that the source function for these vibrations is better described by a power spectral density function of wheel-rail contact rather than track contact.
Physicists have discovered collective behavior in fermions at short wavelengths, contradicting previous assumptions about the behavior of these particles. The study uses mathematical tools to accurately predict the behavior of fermions and bosons in different situations.