Articles tagged with Infrared Radiation
A new infrared imager developed by researchers at the University of California San Diego converts shortwave infrared light into visible images using organic semiconductors. The device is compact, simple, and provides better image resolution than existing systems.
Researchers have developed graphene nanoribbons that interact with light at lightning-fast speeds, opening up new possibilities for high-speed telecommunications. The ribbons' performance is further enhanced by tuning their electric field to interact with multiple light energies.
An international team of scientists has discovered the spectral signatures of almost 1000 atmospheric molecules that could be related to phosphine production. The study provides a novel approach to follow up potential biosignatures and will aid in the detection of life on exoplanets as more powerful telescopes come online.
Researchers from CNRS and universities in France and Austria develop new imaging technique to visualize electromagnetic fields surrounding nanocrystals. This breakthrough enables precise targeting of heat transfers and better understanding of materials properties.
Researchers have developed a new class of versatile, high-performance quantum dots that emit single photons in the near-infrared range at room temperature. These breakthroughs open up practical applications in quantum communication, medical imaging, and diagnostics.
Researchers at Ruhr-University Bochum found that flashlight fish use blink patterns resembling Morse code to communicate in schools. The frequency and intensity of these signals affect the animals' behavior, with faster blinking associated with increased attraction to group members.
Researchers studied 304 developing stars and found that gas-clearing by a star's outflow may not be as important in determining its final mass. The team's results indicate cavities in the surrounding gas cloud do not grow regularly, suggesting another process gets rid of excess gas.
Researchers at the University of São Paulo's Chemistry Institute have successfully controlled enzyme activity using infrared laser irradiation and gold nanoparticles, enhancing lipase biocatalysis by up to 58% compared to nanospheres.
Researchers at the University of Cambridge have identified a new material that can switch between a window and a mirror in a quadrillionth of a second, paving the way for faster computing. The material, Ta2NiSe5, exhibits ultra-fast switching capabilities, surpassing current computer speed.
The NIST instrument uses laser light to measure acceleration with higher precision and does not require periodic calibrations. It has the potential to improve inertial navigation in critical systems like military aircraft and satellites.
Researchers have fabricated a tunable metalens made of phase-changing material GSST that can focus light on objects at multiple depths without moving. This enables the creation of miniature optical devices such as heat scopes for drones and ultracompact thermal cameras for cellphones.
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.
Researchers at KAUST have developed custom polymer dots that emit ultrabright light in the shortwave infrared region, allowing for high-resolution imaging of structures deep within biological tissues. This breakthrough enables detection of nano-sized particles and single molecules with single-molecule sensitivity.
A new method, Coherence Tomography with Extreme Ultraviolet Light (XCT), enables non-invasive observation and analysis of tiny structures in semiconductors. The technique uses broadband XUV radiation to generate coherent light with nanometer precision.
A new type of high-performance optical sensor has been demonstrated that utilizes the surface tension of liquid to concentrate and trap analyte molecules at sensitive locations, enhancing sensitivity performance. The sensor can detect picogram levels of analyte mass with readily detectable optical signals.
Scientists in Australia develop a process to calculate perfect quantum dot size and density for peak solar performance, enabling photochemical upconversion. The research uses lead sulfide quantum dots and shows promise for improving solar panel efficiency without compatibility issues with silicon technology.
A new study by UMBC physicists finds that black hole jets primarily release energy in the molecular torus, rather than the broad-line region. This resolves a decades-long debate on jet formation and structure, offering clues to how jets initially form and dissipate energy.
A team of researchers has developed a unique process to produce a quantum state that is part light and part matter. This discovery provides fundamental insights for developing efficient quantum-based optical and electronic devices, as well as increasing the efficiency of nanoscale chemical reactions.
A new laser-based method allows researchers to map the electronic structures of crystals at room temperature, revealing potential capabilities for solar cells, LED lights, and artificial photosynthesis. The technique also enables the design of novel semiconductor-based quantum devices.
Researchers at TU Wien have developed a new method to produce short, intense infrared laser pulses using tailor-made quantum cascade lasers. The technology can be easily miniaturized, enabling compact measuring instruments for detecting specific molecules in gas samples.
Scientists have successfully demonstrated the interaction between infrared light and molecular vibrations, leading to the formation of hybrid polaritons. The study's findings could pave the way for ultrasensitive spectroscopy devices and a deeper understanding of strong vibrational coupling on the nanoscale.
Astronomers detected near-infrared emission 10 times brighter than predicted, challenging conventional theories of short gamma-ray bursts. The observations suggest the possibility of a massive magnetar being formed after the merger of two neutron stars.
A new device created by researchers at the University of Texas at Austin can overcome challenges like bad weather to deliver more secure, reliable communications. The chip operates in mid infrared light spectrum, allowing signal to penetrate through clouds, rain and other weather conditions without significant loss.
Researchers developed novel cascade optical field modulation strategy to boost UCL by more than four orders of magnitude. The new material exhibits extremely high responsivity and detectivity, achieving selective detection in three narrow spectral bands.
Researchers at Polytechnique Montréal have created a new fluorescent organic light-emitting diode (OLED) that is 300% more efficient than existing OLEDs in its category, reaching a quantum efficiency of 3.8%. The breakthrough could enable the use of infrared OLEDs in smartphones and other devices.
The new photodetector achieves ultrasensitive detection, stable operation under extreme conditions, and ultrabroad spectrum detection exceeding 10μm.
Scientists at the University of Groningen designed a rotary motor powered by near-infrared light, overcoming a major limitation of previous designs. The motor uses an antenna to absorb two low-energy photons, which are then transferred to initiate movement.
Researchers from the University of Tsukuba developed an infrared-transmitting polymer that retains its shape after stretching and can be used to fabricate lenses with variable-focus properties. The polymer is based on low-cost, sustainable materials and was found to transmit 10% of incoming infrared light.
A study found that infrared radiation trapped by deep clouds strengthens the storm's circulation, promoting moisture saturation and rotation. The phenomenon could help improve forecasting of destructive storms.
Scientists at NIST and the University of Maryland have developed a microchip technology that can generate a wide range of visible laser colors using near-infrared laser light. This approach enables precise control over wavelength, opening up new possibilities for applications in precision timekeeping and quantum information science.
Researchers used leaf reflectance spectra to illuminate the evolution of seed plants over 350 million years, revealing phylogenetic diversity and constraints on spectral variation. The study's findings have significant implications for monitoring plant biodiversity and ecosystem function.
Researchers at ETH Zurich have developed a novel approach to frequency doubling in nonlinear crystals, utilizing disordered nanocrystals to achieve efficient light conversion. The method, which combines two seemingly irreconcilable approaches, enables wide-range frequency tuning and minimizes material usage.
A team of scientists from Northern Arizona University reviewed the Spitzer Space Telescope's legacy in Nature Astronomy, documenting its groundbreaking discoveries about comets, stars, exoplanets, and distant galaxies. The papers also suggest targets for the next-generation James Webb Space Telescope.
Researchers at ICFO have developed a new class of broadband solid state light emitters based on colloidal quantum dot technology, enabling efficient and compact infrared emission. The devices achieve outstanding photon conversion efficiency of up to 25% and tunable emission spectra, paving the way for various applications including spe...
Researchers at RMIT University developed a hyper-efficient broadband photodetector that can see all shades of light, shrinking it by 1,000 times while maintaining speed and low-light sensitivity. The device has potential applications in biomedical imaging, motion detection, and fibre optic communication.
Researchers at Karlsruhe Institute of Technology (KIT) have developed a novel concept for low-cost terahertz receivers that enable ultra-fast wireless communications at low cost. The proof-of-concept experiment demonstrated transmission at a data rate of 115 Gbit/s and a carrier frequency of 0.3 THz over a distance of 110 meters.
Scientists create hierarchical assembly of dye molecules in a host-guest hybrid metal-organic framework to achieve up to three-wavelength single-mode polarized lasing. The resulting three-color single-mode lasing has a large wavelength coverage of ~186 nm and a low threshold of ~1.72 mJ/cm2.
Researchers at University of Michigan develop transparent organic solar cells with 8.1% efficiency and 43.3% transparency, ideal for buildings with glass facades. The new material balances sunlight absorption, voltage, current, resistance, and color-neutral transparency.
Researchers at EPFL have created a technology to amplify light inside hollow-core optical fibers filled with air, increasing the light intensity significantly. This breakthrough enables longer-distance transmission and potential applications in thermometers and temporary optical memory.
Researchers find twisted bilayer graphene displays strong photoresponse and superconducting states when exposed to mid-infrared light. The material's unique properties make it a promising candidate for advanced devices.
Researchers at Tohoku University developed faster LED-based optical wireless technology using deep ultraviolet light, overcoming solar interference issues in traditional Li-Fi systems. The new LEDs enable quicker communication speeds and are suitable for use in 5G wireless networks.
A new study using optical tweezers reveals the sensitivity of photoreceptors to mechanical stimuli, opening up new questions on their function. The researchers detected specific molecules sensitive to mechanical stress and observed variations in electrical signals.
Researchers demonstrate that nanoscale infrared imaging can identify materials up to 100 nm below the surface. The technique distinguishes surface layers from subsurface layers, enabling direct identification without modeling.
Researchers at the University of Tokyo have created a simple device to convert circularly polarized visible laser light into circularly polarized vacuum ultraviolet light, twisted in the opposite direction. This new method can be useful for researchers in medicine, life sciences, molecular chemistry and solid state physics.
Researchers have successfully developed a method to 'upconvert' low energy light into visible light using oxygen, enabling it to be captured by solar cells. This breakthrough has the potential to increase the efficiency of solar cells and expand their sensitivity range.
Scientists cooled potassium-rubidium molecules to near absolute zero, observing an intermediate complex that lived for 360 nanoseconds. The team found that laser light was forcing the molecules off their reaction path, leading to loss.
Researchers created a three-layer anti-reflection surface to improve transparency and conductivity in plastic, achieving a transmittance of 88.4% compared to 88.1% for the plastic alone.
Astronomers have discovered 25 debris disks around young stars, revealing evidence of planets in nearly all cases. The high-resolution images were obtained using the Gemini Planet Imager and show a variety of shapes and sizes of stellar systems during their prime planet-forming years.
Research by Alexei Frolov finds distinct relationships between particle masses and cluster properties, improving understanding of semiconductors' optical spectra. The study's formulas could be adapted to describe clusters with varying masses, enabling finer tuning of semiconductor properties.
Monash researchers have successfully applied 'magic angle' twistronics to control the flow of light in extreme ways. By stacking two thin sheets of molybdenum-trioxide and rotating one layer, they observed controllable light waves over a wide range of wavelengths, enabling robust light propagation in tightly focused beams.
Researchers at ICFO have successfully built a new type of cavity for graphene plasmons, enabling the confinement of light in the smallest volume ever achieved. This breakthrough has promising implications for molecular and biological sensing technologies.
Researchers at Texas A&M University have developed a 2D nanosheet that can adsorb near-infrared light and modify cell behavior. This discovery holds promise for controlling cellular functions using light, which could lead to new approaches in cancer treatment and regenerative medicine.
Researchers at ITMO University have created glass-ceramic lamps that produce a wider spectrum of light, including infrared, to improve plant growth in greenhouses. The lamps use chrome and glass-ceramics to emit both red and IR light, offering new possibilities for agricultural facilities.
Researchers found that terahertz radiation can disrupt protein filaments in both aqueous solutions and living cells, but does not kill the cells. This discovery has implications for potential applications in cancer treatment, as well as safety concerns.
Researchers at UCI have engineered human cells to mimic squid skin, allowing them to change their transparency and scattering of light. The study's findings offer a potential method for tuning light-scattering properties in human cells and may lead to new biomolecular markers for medical applications.
Researchers at Institute for Basic Science develop new method to study superconductors using optical tools, enabling exploration of fluctuating superconductivity. Theoretical model shows significant changes in electric conductivity and light absorption near critical temperature.
Researchers from China established a general strategy to guide design of optical metasurfaces with fully controlled angular dispersions. They demonstrated the importance of near-field couplings and radiation patterns in determining these dispersions.
NASA's Aqua satellite gathers temperature information about Tropical Storm Mangga's cloud tops, revealing powerful thunderstorms with potential to generate heavy rainfall. The strongest storms have coldest cloud top temperatures, indicating strong and potentially destructive weather.
The UVA team collaborated with Peking University and Caltech to develop a broadest recorded microcomb spectral span, generating light in the ultraviolet to infrared spectrum. This achievement increases the usefulness of microcombs in spectroscopy, optical clocks, and astronomy calibration.
Researchers from ITMO University have successfully created an all-optical switch based on a metal-organic framework, which can be synthesized in vitro and is useful for developing ultrafast optical memory cells. The switch operates faster, more efficiently, and consumes less energy than traditional electronic devices.