Articles tagged with Infrared Radiation
Researchers at the University of Illinois have developed a new type of flexible display that uses capillary-controlled robotic flapping fins and liquid droplets to create switchable optical and infrared light multipixel displays. The displays are 1,000 times more energy efficient than traditional LED screens.
A study by the Helmholtz-Zentrum Dresden-Rossendorf team demonstrates efficient conversion of high-frequency signals into visible light using graphene-based materials. The mechanism involves a thermal radiation process, and the conversion is ultrafast and tunable.
A research team developed a radiative transfer model for plant leaves in the thermal infrared spectrum and found that as the cuticle layer decreases, leaf reflectance increases with decreasing water content. This study provides essential theoretical foundations for understanding TIR spectral behavior of leaves.
Researchers have detected complex organic molecules in a galaxy more than 12 billion light-years away from Earth. The study used the James Webb Space Telescope and gravitational lensing to observe the galaxy's atomic and molecular composition, revealing insights into the formation of galaxies, their lifecycle, and how they evolve.
Researchers have found that supermassive black holes are more likely to grow and release energy when inside galaxies expected to collide. The study used a new technique to determine galaxy distances, providing insight into the growth of these black holes during cosmic noon.
Researchers at Brown University developed a new microscopy technique using blue light to measure electrons in semiconductors and other nanoscale materials. This breakthrough enables the study of critical components that can help power devices like mobile phones and laptops.
Research reveals connection between star brightness and dust concentrations, paving way for study of dust's role in planetary formation. The University of Tokyo's latest findings may help unravel the secrets of life's creation.
Researchers at Drexel University discovered that a thin MXene coating can enhance a material's ability to trap or shed heat. The coating, which is 200-300 times thinner than a human hair, can be used for both localized thermal management and large-scale radiative heating and cooling systems.
Researchers have developed a new technique that combines real-time images with short-wave infrared light to differentiate between cancerous tumours and healthy tissue. This innovation has the potential to improve treatment outcomes for neuroblastoma patients by allowing surgeons to remove cancerous cells more precisely.
Researchers at Eindhoven University of Technology have developed a photodiode with sensitivity exceeding 200%, using green light and a double-layered cell design. This breakthrough enables the device to detect weak light signals, making it ideal for medical purposes, wearable monitoring, and machine vision applications.
A team of scientists observed the dynamic formation process of interstellar gas clouds, revealing speeds of up to 20 km/s that compress gas into denser regions where massive stars form. The findings challenge previous assumptions of slow and quasi-static star formation processes in this region.
Researchers utilized the James Webb Space Telescope to observe dense interstellar clouds, revealing a treasure trove of pristine ices from the early universe. The study provides new insights into chemical processes in one of the coldest places in the universe, offering clues on molecular origins and sulfur storage.
A recent gamma-ray burst has been identified as a kilonova, shedding light on the merging of neutron stars and black holes. The event produced an excess of infrared light and lasted about a minute, contradicting the typical short duration of such explosions.
Researchers from the Max Born Institute report on a new light source generating ultrashort infrared pulses beyond 10 µm wavelength, exhibiting high potential for vibrational spectroscopy and optical materials processing. The system demonstrates excellent beam quality and stability, with output power and repetition rate scalable.
Researchers developed a technique to 'see' fine structure and chemical composition of human cells with high resolution. The new method uses infrared light to reveal chemical signatures without fluorescent labeling.
Researchers from LP3 Laboratory developed a light-based technique for local material processing in three-dimensional space of semiconductor chips. They successfully fabricated embedded structures inside Si and GaAs materials, which cannot be 3D processed with conventional ultrafast lasers.
Astronomers found that a planet like GJ 1252b, orbiting an M dwarf star, would likely lose its atmosphere due to intense heat and radiation. The discovery narrows the search for habitable planets around these stars, but leaves room for possibilities further away from the star.
A new mid-infrared sensor chip can accurately monitor liquid concentrations in real-time, enabling precise monitoring of chemical reactions. The sensor combines customized infrared technology and chemical robustness to deliver data within fractions of a second.
A new wireless laser charging system uses infrared light to transfer high levels of power over distances of up to 30 meters, sufficient for charging sensors. The system automatically shifts to a safe low power delivery mode if an object or person blocks the line of sight, achieving hazard-free power delivery in free space.
Researchers developed nanometric photodiodes that can bind to nerve cell surfaces and activate them with infrared light, allowing for selective stimulation of individual neurons. This technology has the potential to study the nervous system in-depth and develop targeted therapies for neurological diseases.
Researchers at Ural Federal University develop infrared optical fibers with high transparency and low optical losses, suitable for applications in space, laser surgery and medical imaging. The fibers retain their properties even when exposed to ionizing radiation.
The study compares the behavior of flat (1D), cylindrical (2D) and spherical (3D) micromirrors for free-space light coupling. Silicon micromirrors were fabricated and used to experimentally validate the coupling efficiency in visible and near infrared wavelengths.
Scientists at Chung-Ang University have pioneered a novel method for controlling microdroplet motion on solid surfaces using near-infrared light. This approach allows for more precise control than traditional thermal techniques and opens up new possibilities for applications in microfluidics, drug delivery, and self-cleaning surfaces.
Researchers have found that light-based therapies such as photobiomodulation and photodynamics can effectively treat a range of post-COVID complications, including muscle and joint damage. The studies, conducted in Brazil, utilized laser irradiation, negative pressure, and other technologies to improve symptoms and promote healing.
New research develops a low-index BaF2 thin film-based microspectrometer technology for LWIR spectral sensing. The study demonstrates the use of flat and stress-free free-standing distributed Bragg reflectors (DBRs) for high-performance wavelength discrimination in the long-wave infrared region.
Researchers have designed a lightweight wood-based foam that reflects sunlight, emits absorbed heat, and is thermally insulating. The material could reduce buildings' cooling energy needs by an average of 35.4% depending on weather conditions, making it a promising solution for hot climates.
Australian researchers have developed a device that can generate electricity from thermal radiation using technology similar to night-vision goggles. The team successfully tested a 'thermo-radiative diode' capable of converting infrared heat into electrical power, with the potential to harness solar energy at night.
Researchers used NASA's Planetary Spectrum Generator to analyze light from Venus, Mars, and Jupiter, shedding new light on the presence of biosignatures and chemical compounds. The study helps clarify the association between methane on Mars and life, as well as the fate of Martian water.
Researchers have demonstrated control of graphene's relaxation time, allowing for novel functionalities in devices such as light detectors and modulators. This work paves the way for the development of ultrafast optical devices with potential applications in photonics and telecommunications.
Pusan National University researchers demonstrate the effectiveness of integrating a radiative cooler with a multi-junction solar cell, achieving a 6°C temperature drop and a 2% increase in open-circuit voltage. This breakthrough could lead to more efficient and eco-friendly solar cells, paving the way for renewable energy sources.
Researchers have developed a method to detect tiny plastic scraps on remote beaches using satellite technology. This innovation enables the tracking of plastics within satellite images, allowing for more frequent and reliable observations.
A team of researchers at Rice University has developed a new method to detect tiny cracks in concrete using silicon fluorescence. The technique involves applying a thin coat of opaque paint to the concrete and shining near-infrared light on it, revealing even the smallest microcracks.
Scientists at Nanyang Technological University have developed a novel therapeutic approach to tackle obesity, reducing body fat and improving blood markers through a hydrogel injection and near infrared light treatment. The treatment shows significant promise in lab trials, with mice experiencing reduced body mass and improved metabolism.
The integration of optical sensing into orthopedic surgical devices has the potential to increase accuracy and improve outcomes in musculoskeletal repair. Researchers explore various types of optical sensing, including spectroscopy and imaging, to address unmet clinical needs in orthopedic surgery.
New research introduces adaptable smart window design that can heat or cool a house. The film changes its properties to absorb sunlight in winter and reflect it in summer, reducing energy consumption by 20-34%.
Researchers developed a material that automatically responds to changing temperatures, switching between heating and cooling. The glass can regulate both solar transmission and radiative cooling, reducing energy consumption up to 9.5% or ~330,000 kWh per year.
Researchers developed a molecular device that converts infrared light to visible light, expanding detection capabilities. The device uses tiny vibrating molecules and metallic nanostructures to enhance conversion efficiency.
A new snow tracking sensor using infrared radiation technology will track daily snow depth, making it easier to predict and prevent winter-related hazards. The device will measure snow density by strata, providing more accurate data for avalanche forecasting and flood risk assessment.
Researchers at ETH Zurich demonstrate the first direct femtosecond-pulse emission from a quantum cascade laser in the mid-infrared region, generating powerful pulses as short as 630 femtoseconds and 4.5 watt peak power. This breakthrough opens up practical routes to accessing ultrafast dynamics across the molecular fingerprint region.
Scientists from UCLA develop a do-it-yourself radiative cooler using household materials, achieving moderate to large temperature drops. The design's reproducibility and low cost make it an attractive standard for research settings.
Scientists at NTU Singapore develop a new electrochromic window material that can block up to 70% of infrared radiation while allowing 90% of visible light to pass through. The material is designed to be energy-efficient and durable, with improved performance compared to existing technologies.
Theoretical physicists modelled the region around M87's supermassive black hole, confirming that gravity plays a key role in accelerating particles out to thousands of light years. The findings provide further evidence for Einstein's theory of general relativity and its application to astrophysical phenomena.
A recent survey reveals a new method using cloud-cleared radiances improves forecasting of high-impact weather events like hurricanes and typhoons. The technique is now being applied to numerical models for enhanced daily forecasts.
A new rapid screening test for glaucoma uses infra-red sensors to monitor eye movement, providing accurate results within seconds. The test could help advance early detection of the disease, a leading cause of irreversible blindness, and make it more accessible for national screening programs.
Researchers create efficient, designer infrared light sources with near-arbitrary spectral output, enabling molecular sensing technologies and various applications. The innovative process leverages heat-driven design and machine learning, reducing optimization time from weeks to minutes.
A pilot study found improvements in memory, motor function, and processing skills in healthy individuals after receiving transcranial photobiomodulation therapy. The therapy, involving infrared light, has the potential to alleviate nerve cell damage and reduce symptoms of dementia.
Colloidal quantum dot technology enables infrared lasing at room temperature, paving the way for low-cost solution-processed and CMOS integrated lasing sources. The breakthrough discovery may facilitate fully integrated silicon photonics, enabling lower power consumption, higher data rates, and multi-spectral 3D imaging capabilities.
Scientists propose Source-independent Radiometric Calibration (SIRC) for high-accuracy infrared remote sensing, overcoming limitations of traditional methods. SIRC requires only temperature information and modeling to implement calibration, providing a more reliable and traceable way.
Researchers observed ghost polaritons in calcite crystals, enabling superior control of infrared nano-light for various applications. The discovery features highly collimated propagation properties and record-long distance propagation at room temperature.
Researchers have developed a dye-free method to visualize blood flow in the brain, allowing for detailed mapping of small capillaries and assessing blood flow rates. The technique has potential applications in understanding cardiovascular diseases, tumor growth, and targeted drug delivery.
The new infrared detector can make two technically important ranges of infrared radiation visible, previously not covered by conventional photodiodes. The sensor can distinguish between substances based on their different absorption properties in the NIR and SWIR range.
Researchers developed a non-invasive optical technique using spectroscopy to identify structural changes in the brain and diagnose Alzheimer's disease. The new technology has potential as a simple, completely non-invasive method of early detection and could also assess treatment effectiveness.
Scientists have created the first chromium complex that emits light in the longer wavelength NIR-II range, a significant breakthrough for biomedical imaging. This achievement is expected to lead to cheaper alternatives for luminescence-based applications.
The team uses a technique called Fourier transform infrared spectroscopy (FT-IR) with an originally designed 3D-printed attenuated total reflectance (ATR) unit to identify the orientation of molecules and chemical bonds in crystalline organic-inorganic hybrid thin films
Optical cloaking technology may soon be used in vehicles to remove blind spots and enhance safety. Recent research has made progress in developing invisibility cloaks using standard optical components.
Researchers developed an ultra-compact thin film that can be used on standard glasses to see clearly in the dark. The technology has the potential to transform infrared light into visible images at room temperatures.
Scientists observe combined sound and light waves in atomically thin materials, finding that the hybrid wave can speed up and slow down spontaneously and split into two separate pulses. The discovery opens up new possibilities for optical communication through atomically thin layers.
The Roman Space Telescope will create massive infrared images, 200 times larger than Hubble, with exquisite resolution. The 24 flight-certified detectors will enable scientists to explore vast celestial objects and phenomena.
A metamaterial absorber enhances infrared spectroscopic detection signals 100-fold, allowing for more distinct results with small traces of substances. The proposed technique offers low-cost manufacturing and vast applications in detecting biomolecules, harmful substances, and gases.
Researchers at Ruhr-University Bochum have discovered a universal functional mechanism of channelrhodopsins, which determines their efficiency as an optogenetic tool. This finding will help tailor more efficient optogenetic tools in the future by blocking inefficient pathways.