Articles tagged with Infrared Radiation
Researchers developed nanoparticles that generate heat to kill cancer cells using infrared light. The new particles showed no toxicity and were able to withstand repeated heating cycles.
Researchers have developed new tiny probes called BRIGHTs that bind to biomarkers of disease and light up to reveal their location when swept by an infrared laser. These probes, made of gold nanoparticles with Raman reporters, create an electromagnetic hotspot that boosts the reporters' emission by a factor of nearly a trillion.
The Rice team's device can modulate a signal at more than 10 gigabits per second, making it suitable for real-time video processing and high-speed data throughput. This breakthrough has the potential to scale up the capability of optical information processing systems by several magnitudes.
The Visible Infrared Imaging Radiometer Suite (VIIRS) on NASA/NOAA's Suomi NPP captured a composite image of Hurricane Sandy just hours before its historic landfall. The satellite's day-night band sensor revealed city lights and clouds illuminated by the full moon, providing a unique view of the storm's structure.
Tropical Storm Sandy is expected to become a hurricane before reaching Jamaica and Cuba, prompting hurricane warnings and watches for the region. The storm's strongest thunderstorms are surrounded by cloud top temperatures as cold as -63F (-52C), indicating hurricane-force winds.
Researchers from UC Irvine and NASA's Jet Propulsion Laboratory have discovered that galaxy halos are likely caused by orphan stars ejected from galaxies during violent mergers. The team used data from the Spitzer Space Telescope to study the patterns of diffuse light, finding that it is too strong to be explained by earlier theories.
Researchers suggest that small numbers of stars kicked to the edges of space during galaxy collisions may explain infrared light 'halos'. This theory proposes that only one-tenth of 1 percent of stars are distributed like dark matter, producing fluctuations in the cosmic background.
A new transparent solar cell has been developed that produces energy by absorbing mainly infrared light, making the cells 66 percent transparent to the human eye. The panels could be used in smart windows or portable electronics.
The Suomi NPP satellite observed a geomagnetic storm on October 8, 2012, resulting in beautiful displays of northern lights across Canada. The satellite's 'day-night band' sensor detected visible light emissions from energetic particles raining down from Earth's magnetosphere.
NASA has observed Tropical Depression 21W in the northwestern Pacific, with sustained winds near 25 knots. The system is expected to curve westward and make landfall along central Vietnam's coast by October 6 or 7.
Researchers in Dresden observed how electrons in individual quantum dots absorb energy and emit it as light. They used scanning near-field microscopy to excite electrons and measure their energy levels.
The eXtreme Deep Field (XDF) image is a small fraction of the angular diameter of the full moon, containing about 5,500 galaxies. The XDF reveals galaxies that span back 13.2 billion years in time, providing a 'time tunnel into the distant past' and shedding light on the early universe's dramatic birth and evolution.
The James Webb Space Telescope's primary mirror is composed of 18 hexagonal-shaped assemblies weighing over 40 kilograms each. The delivery of the first two mirrors marks an important step towards the telescope's integration and fulfillment of its scientific potential, enabling study of distant galaxies and the universe's formation.
A team of astronomers has spotted a potentially most distant galaxy ever detected, which existed 500 million years after the Big Bang. The discovery opens up a window into the deepest, remotest epochs of cosmic history, providing insights into the universe's earliest objects and the Dark Ages.
Astronomers have detected a potentially most distant galaxy ever seen, offering a glimpse into the universe's earliest epochs. The galaxy, observed through gravitational lensing, has a redshift of 9.6 and is estimated to be less than 200 million years old.
DECam, the most powerful sky survey instrument built, relies on Berkeley Lab's red-sensitive astronomical CCDs for exceptional sensitivity and resolution. This collaboration has enabled scientists to collect images of distant galaxies and measure the expansion history of the universe with unprecedented precision.
Researchers at Ruhr-University Bochum developed a new method for studying the interaction between pharmaceuticals and their target proteins. The new technique uses infrared difference spectroscopy, which allows for the analysis of dynamic processes in proteins that were previously inaccessible.
Typhoon Haikui is approaching mainland China, with NASA tracking its movement and intensity using visible and infrared light. The storm's strongest storms had cloud top temperatures near -63F, packing heavy rainfall.
Remnants of Hurricane Emilia appear as a light swirl of clouds about 800 miles east-southeast of Hilo, moving west at close to 20 mph. Conditions are not favorable for re-development, and the storm is expected to weaken to depression status in cooler waters.
Project 1640 has achieved unprecedented high-contrast imaging, revealing celestial objects 1 million to 10 million times fainter than the star at its center. The instrument can darken speckles far beyond any previous capability, effectively carving a dark square in the speckle background centered on the star.
Researchers at Tufts University found that female fireflies prefer males with larger nuptial gifts after mating, leading to higher reproductive success. This discovery challenges the conventional view that flash duration is the primary cue for female choice in firefly courtship.
Researchers have successfully trapped and controlled light within a graphene lattice, allowing for the development of computers with optical switches. This breakthrough demonstrates the high potential of graphene in nanoelectronics.
Scientists have demonstrated that they can control the length and height of plasmons on graphene using an electrical circuit, opening up possibilities for information processing in tight spaces. This breakthrough uses infrared light to excite surface plasmons with wavelengths as short as 100 nanometers.
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.
Researchers at Syracuse University have developed a system that harnesses the natural light produced by fireflies using nanoscience, producing a system 20-30 times more efficient than previous experiments. The breakthrough uses custom quantum nanorods to transfer energy from a chemical reaction between luciferin and luciferase enzymes.
A University of Delaware-led research team has developed more accurate calculations for the interactions between molecules of hydrogen and carbon monoxide, essential for spectroscopy in astrophysics. These advancements enable researchers to analyze molecular clouds where stars are born with greater precision.
A new type of detector harnessing the properties of single-walled carbon nanotubes may prove useful for various industrial and scientific applications. The detector eliminates the need for cooling systems, allowing for highly sensitive infrared detection.
The JQI switch can steer a beam of light from one direction to another in 120 picoseconds using only 140 photons, requiring minimal power. This achievement marks a significant step toward creating ultrafast and low-energy on-chip signal routers.
Researchers at Princeton University have developed a method to increase the power output of flexible, low-cost solar cells by creating microscopic folds on the surface of photovoltaic material. This technique increases the absorption of light and generation of energy, particularly in the red spectrum, where conventional solar panels st...
Researchers found that phytochrome interacting factor 7 (PIF7) serves as key messenger between plant's cellular light sensors and production of auxins, hormones that stimulate stem growth. This discovery could lead to high-yield crops that gather light more efficiently and make better use of farmland.
Duke researchers have developed exotic materials that can control light at will, allowing for the creation of holograms in the infrared range. The team's innovative approach enables a broad range of optical devices with complex properties, opening up new possibilities for advanced optics and optoelectronics.
Researchers at Harvard University have developed a new method to create three-dimensional patterns of silver dots using a femtosecond laser. This technique advances nanoscale metal lithography and enables the creation of bulk metamaterials with unique optical properties.
The Pitt team has generated a frequency comb with over 100 terahertz bandwidth, enabling the processing of communications data at a remarkably rapid speed. This breakthrough could increase information carried by more than 1,000 times compared to current technologies.
A team of scientists has detected a potentially habitable super-Earth orbiting a nearby M-class dwarf star called GJ 667C. The planet receives 90% of the light that Earth receives and is expected to absorb similar amounts of energy, which could lead to surface temperatures similar to those on Earth.
Researchers at JILA have created the first 'frequency comb' in the extreme ultraviolet band of the spectrum, allowing for precise measurements and unlocking new scientific avenues. This breakthrough enables the development of 'nuclear clocks' and studies of previously unexplored behavior in atoms and molecules.
The camera converts polarization images into false color images to represent different polarizations of light. Preliminary results suggest a complex visual world under water with evidence of communication and camouflage.
Astronomers using NASA's Hubble Space Telescope have discovered a distant Type Ia supernova, offering new opportunities to study dark energy. The discovery marks a significant step forward in understanding the mysterious force driving the universe's acceleration.
Researchers at Purdue University have developed nanoantennas that precisely manipulate light, allowing for the alteration of its phase and propagation direction. This enables potential applications in steering and shaping laser beams, nanocircuits for computers, and powerful lenses for microscopes.
Researchers at Helmholtz-Zentrum Dresden-Rossendorf have measured the lifetime of electrons in graphene in lower energy ranges. The study reveals that the energy of light particles and atomic lattice oscillations influence electron lifetimes, with longer lifetimes observed when excitation energies are lower than lattice oscillations.
Researchers have found the largest batch of young, supermassive stars yet observed in our galaxy, including dozens of massive blue stars. The intense light emitted by these newborn stars has carved out a glowing hollow shell around them, offering a unique opportunity to study energy transmission and star formation.
Researchers at NC State University have developed a method to convert 2D patterns into 3D shapes by heating pre-stressed plastic sheets under infrared light. Varying the width of black lines creates different hinge folds, enabling the creation of complex structures
A NASA-developed nanotech-based coating absorbs on average more than 99 percent of ultraviolet, visible, infrared, and far-infrared light, making it useful for suppressing stray light in space instruments. This material can help scientists gather hard-to-obtain measurements of distant objects without interference from background light.
A research team at TUM has developed a sensor system that monitors drivers' vital signs, including heart rate, skin conductance, and oxygen saturation, to prevent fainting spells or heart attacks. The system uses simple sensors in the steering wheel and can initiate measures such as phone call blocking or emergency braking if necessary.
New study reveals two young galaxies at 12 billion years old with super-solar metal abundances, challenging our understanding of the universe's chemical evolution. The findings support the idea that gamma-ray bursts are associated with vigorous massive star formation and provide insights into the history of the early universe.
Researchers at NIST have developed a compact laser frequency comb, the first to use a cavity made of fused silica. The micro-comb is about the size of a shoebox and relies on a low-power laser and the cavity's unusual properties. It has wide spacing between teeth, allowing scientists to easily measure and manipulate them.
For the first time, Prof. Hans Jakob Wörner and colleagues have recorded electronic motion during a complete chemical reaction using attosecond spectroscopy on nitrogen dioxide molecules. This experiment reveals details of chemical reaction mechanisms that were not accessible to most previous experimental techniques.
A team of scientists at the US Department of Agriculture has patented a method to convert commercial digital cameras into color infrared cameras for aerial photography. This technology allows for immediate image availability without further processing, making it ideal for detecting farmland extent and crop health. The innovation enable...
Researchers at Stanford University have developed a nanoscale nonlinear optical device that can be controlled electronically, offering potential applications in data communications and information processing. The device uses plasmonics to intensify light and produce a powerful electrical field.
The mirrors of NASA's James Webb Space Telescope have completed the coating process with a microscopically thin layer of gold, enabling the telescope to observe extremely faint objects in infrared light. This achievement marks another major success story for the Webb telescope mirrors, ensuring even more scientific discovery potential.
Researchers achieve precise control over ultrashort light pulses, enabling the manipulation of electron motion in atoms and molecules. This breakthrough enables new tools for studying sub-atomic processes and understanding atomic interactions.
Scientists at Berkeley Lab have demonstrated a microscale device made of graphene that can tune its response to light at terahertz frequencies with exquisite precision. The device uses an array of graphene ribbons to control collective oscillations of electrons, or plasmons, which absorb different frequencies of light.
Researchers at the University of Pennsylvania have developed a color-changing stress sensor using polymersomes and porphyrins, allowing for early detection of system failures. The technology has the potential to monitor drug delivery and track stress in cellular membranes.
A new solar cell design boosts electricity generation by 26% through bouncing light, increasing the potential of dye-sensitized solar cells. The layered structure, consisting of micrometer-scale spheres and nanoscale particles, enhances light absorption and conversion efficiency.
Researchers have developed a reflective 'carpet cloak' made of silicon oxide and silicon nitride, which conceals an object under layers and bends light waves around it. The device demonstrates the possibility of actual invisibility for the light seen by the human eye, surpassing previous infrared-based demonstrations.
Researchers detected massive water vapor in a distant quasar, equivalent to 34 billion times the mass of Earth. The discovery was made using a spectrograph called Z-Spec and reveals a time when the universe was only 1.6 billion years old.
Researchers at NIST have created a dense array of extra-long carbon nanotubes called VANTA, which absorbs nearly all light of long wavelengths, making it a promising coating for prototype detectors. The coating is easy to handle and has desirable thermal properties.
Scientists at Columbia University have engineered optical nanostructures to fully control light dispersion and propagate light without accumulating phase. This breakthrough enables self-focusing light beams, highly directive antennas, and potentially cloaking objects.
Researchers at TUM create an artificial skin for robots that simulates human-like touch and temperature detection, allowing machines to interact with their environment in a more human-like way. The system uses sensors to register movement and detect changes in the robot's surroundings, enabling it to develop self-awareness.
Researchers at Vanderbilt University discovered that parathyroid glands emit a unique fluorescent signature in the near-infrared region, which can be used to identify them during endocrine surgery. This innovation has the potential to reduce the risk of damage to these tiny organs and their life-long effects on patients' health.
Scientists from NASA's Goddard Space Flight Center have produced groundbreaking global maps of land plant fluorescence, providing a more direct window into the inner workings of photosynthesis. The maps show sharp contrasts in plant fluorescence between seasons and demonstrate the feasibility of measuring fluorescence from space.