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Current Infrared Light News and Events, Infrared Light News Articles.
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To accelerate or decelerate in the light-emitting process of zinc-oxide crystals
A recent study has measured the internal quantum efficiency (IQE) of Zinc-Oxide (ZnO) crystals in both the light-emitting process and non-light-emitting process. (2020-12-06)

Molecules convert visible light into ultraviolet light with record efficiency
Researchers from Kyushu University have doubled efficiency records for the conversion of visible light into ultraviolet light using triplet-triplet annihilation, achieving 20% efficiency at high light intensities while also greatly improving efficiency even under weak ambient light. Such upconversion systems are promising for boosting the performance of light-powered reactions under light already present in our surroundings, whether from the sun, LEDs, or other sources. (2020-12-04)

Mapping quantum structures with light to unlock their capabilities
A new tool that uses light to map out the electronic structures of crystals could reveal the capabilities of emerging quantum materials and pave the way for advanced energy technologies and quantum computers, according to researchers at the University of Michigan, University of Regensburg and University of Marburg. (2020-12-03)

Scientists invent a new type of microscope that can see through an intact skull
Researchers at IBS invented a new type of microscope called reflective matrix microscope, which uses adaptive optics techniques (2020-12-02)

Active camouflage artificial skin in visible-to-infrared range
Cephalopods' exceptional ability to hide into any background has inspired researchers to replicate their fascinating ability to camouflage in the infrared (IR) and visible spectrum. Recent advances offered a number of physical mechanisms to reproduce the cloaking functionalities of cephalopods. However, most of works focused on either camouflaging in the visible or IR camouflage range only: not dual modes in a single device structure that can readily switch between the visible and IR mode according to a suitable situation. (2020-12-02)

Nanomaterials enable dual-mode heating and cooling device
Engineers at Duke University have demonstrated a dual-mode heating and cooling device for building climate control that, if widely deployed in the U.S., could cut HVAC energy use by nearly 20 percent. The invention uses a combination of mechanics and nanomaterials to either harness or expel certain wavelengths of light. Depending on conditions, rollers move a sheet back and forth to expose either heat-trapping materials or cooling materials. (2020-12-02)

Tunable rainbow light trapping in ultrathin resonator arrays
Light squeezed into nanoscale metallic gaps has a myriad of applications in sensing, energy, and nonlinear optics. Recently, scientists at the University of Toronto have developed a new paradigm for the design of ultrathin metallic nanostructures which allows for precision tailoring to fit any desired application. This design strategy, coupled with a novel fabrication technique, provides a promising platform for the advancement of nanoscale optics. (2020-12-01)

AI-based 'OxyGAN' is a robust, effective method to measure tissue oxygen levels
In a new study published in the Journal of Biomedical Optics, researchers from Johns Hopkins University, Mason T. Chen and Nicholas J. Durr, have proposed an end-to-end technique for accurate calculation of tissue oxygenation from single snapshots, called OxyGAN. (2020-12-01)

Detecting bacteria with fluorescent nanosensors
Researchers from Bochum, Göttingen, Duisburg and Cologne have developed a new method for detecting bacteria and infections. They use fluorescent nanosensors to track down pathogens faster and more easily than with established methods. A team headed by Professor Sebastian Kruß, formerly at Universität Göttingen, now at Ruhr-Universität Bochum (RUB), describes the results in the journal Nature Communications, published online on 25 November 2020. (2020-11-30)

Astronomical instrument hunts for ancient metal
Researchers created a new astronomical instrument that has successfully aided in estimating the abundance of metals in the early universe. The WINERED instrument allows for better observations of astronomical bodies like quasars in the early universe, billions of years ago. Researchers hope this deeper level of exploration could help answer questions about the origins not only of metals in the universe but also of the stars themselves. (2020-11-30)

Raman holography
Scientists from ICFO and University Rovira i Virgili report on a novel Raman holographic technique capable of tracking individual particles in 3D volumes from one single image. (2020-11-30)

Study reveals new findings on nature's UV sunscreens
Swansea University research has provided a new insight into the behaviour of nature's own UV sunscreens when they are exposed to other parts of the light spectrum. (2020-11-30)

Puzzling 'cold quasar' forming new stars in spite of active galactic nucleus
Using NASA's SOFIA telescope, University of Kansas researchers have found CQ 4479, a galaxy which never had been closely studied before, to be generating new stars in spite of a luminous AGN at the galaxy's center. (2020-11-27)

NASA's Hubble sees unexplained brightness from colossal explosion
Long ago and far across the universe, an enormous burst of gamma rays unleashed more energy in a half-second than the Sun will produce over its entire 10-billion-year lifetime. In May of 2020, light from the flash finally reached Earth and was first detected by NASA's Neil Gehrels Swift Observatory. (2020-11-23)

Laser technology: New trick for infrared laser pulses
For a long time, scientists have been looking for simple methods to produce infrared laser pulses. Now a new method has been presented that does not require large experimental setups; it can be easily miniaturized and is therefore particularly interesting for practical applications. (2020-11-23)

CCNY researchers overcome barriers for bio-inspired solar energy harvesting materials
Inspired by nature, researchers at The City College of New York (CCNY) can demonstrate a synthetic strategy to stabilize bio-inspired solar energy harvesting materials. Their findings, published in the latest issue of Nature Chemistry, could be a significant breakthrough in functionalizing molecular assemblies for future solar energy conversion technologies. (2020-11-23)

Vibrational encounters - phonon polaritons meet molecules
Researchers from CIC nanoGUNE BRTA (San Sebastian, Spain), in collaboration with the Donostia International Physics Center (San Sebastián, Spain) and the University of Oviedo (Spain) employed a spectroscopic nanoimaging technique to study how infrared nanolight - in form of phonon polaritons - and molecular vibrations interact with each other. (2020-11-23)

Near-infrared probe decodes telomere dynamics
A new synthetic probe offers a safe and straightforward approach for visualizing chromosome tips in living cells. The probe was designed by scientists at the Institute for Integrated Cell-Material Science (iCeMS) and colleagues at Kyoto University, and could advance research into aging and a wide range of diseases, including cancers. The details were published in the Journal of the American Chemical Society. (2020-11-20)

An INRS research team pushes back the boundaries of high-energy laser pulses
Using the Advanced Laser Light Source (ALLS) facility, the research team of Professor François Légaré of the Institut national de la recherche scientifique (INRS) has pushed back the boundaries of high-energy pulse propagation in a nonlinear medium through the observation of high-energy multidimensional solitary states (MDSS). This breakthrough allows the direct generation of extremely short and intense, laser pulses that are highly-stable in time and space. (2020-11-19)

VLA sky survey reveals newborn jets in distant galaxies
Comparing data from VLA sky surveys made some two decades apart revealed that the black hole-powered 'engines' at the cores of some distant galaxies have launched new, superfast jets of material during the interval between the surveys. (2020-11-19)

In the mysterious Blue Ring Nebula, scientists see the fate of binary stars
Scientists have discovered a rare object called the Blue Ring Nebula, a ring of hydrogen gas with a star at its center. The properties of this system suggest it is the remnant of two stars meeting their ultimate demise: an inward orbital dance that resulted in the two stars merging. The result offers a new window into the fate of many tightly orbiting binary star systems. (2020-11-18)

16-year-old cosmic mystery solved, revealing stellar missing link
Astronomers have solved the 16-year-old mystery surrounding the Blue Ring Nebula - an unusual, large, faint blob of gas with a star at its center. This object is unlike any they'd ever seen before in our Milky Way galaxy. The team has discovered the nebula appears to be the first known example of a merged star system at this stage. (2020-11-18)

UV light may be a greater risk for melanoma than suspected
Studies conducted in yeast show that exposure to ultraviolet light (UV) induces new types of DNA damage that may cause the deadliest form of skin cancer, malignant melanoma. While melanoma has been associated with UV light, this study directly links UV exposure to the atypical mutations known to spread the disease. The results also indicate that UV light can induce a more diverse spectrum of mutations than previously suspected. (2020-11-17)

Could your vacuum be listening to you?
A team of researchers demonstrated that popular robotic household vacuum cleaners can be remotely hacked to act as microphones. (2020-11-17)

Highly sensitive detection of circularly polarized light without a filter
Japanese scientists developed a photodiode using a crystalline film composed of lead perovskite compounds with organic chiral molecules to detect circularly polarized light without a filter. It is expected as a technology for visualization of the invisible change of object surfaces such as stress intensity and distribution. (2020-11-16)

No losses: Scientists stuff graphene with light
Physicists from MIPT and Vladimir State University, Russia, have achieved a nearly 90% efficiency converting light energy into surface waves on graphene. They relied on a laser-like energy conversion scheme and collective resonances. (2020-11-16)

New green materials could power smart devices using ambient light
Researchers have developed environmentally friendly materials that could harvest enough energy from indoor light to power wireless smart devices. (2020-11-13)

Birth of magnetar from colossal collision potentially spotted for first time
Researchers spotted a short gamma ray burst 10 times brighter than predicted. The mysterious brightness might signal the birth of a rare magnetar, formed from two neutron stars merging, which has never before been observed. (2020-11-12)

Special issue: Cooling in a Warming World
In this special issue of Science, Cooling in a Warming World, three Perspectives and three Reviews highlight the wide array of new and improved technologies and solutions that aim to keep us and the materials we rely on cool, in our rapidly warming planet. (2020-11-12)

Stretchable fiber optic sensors detect complex deformations simultaneously
A novel dual-core optical fiber made from stretchable materials offers a flexible approach to optomechanical sensing, researchers report. (2020-11-12)

Weather-proof chip aims to take self-driving tech, wireless communications to next level
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. This could aid military communications in challenging areas, improve the ability of self-driving cars to see the environment around them and speed up wireless data for potential 6G networks. (2020-11-12)

Unexplained brightness from colossal explosion
Astronomers may have potentially spotted a magnetar born from a neutron star merger for the very first time. The merger resulted in the brightest kilonova ever seen. The light first came as a violent explosion of gamma rays billons of light-years away that unleashed more energy in a blink of an eye than the Sun will produce over its entire 10-billion-year lifetime. (2020-11-12)

Cascade amplified upconversion luminescence facilitating narrow band NIR photodetection
Facing the fact that selective detection of multiple narrow spectral bands in the near-infrared (NIR) region still poses a fundamental challenge. Towards this goal, Hongwei Song's group and Liu developed selectively multispectral narrow-band near-infrared photodetection using photon upconversion nanocrystals (UCNCs) through a cascade optical field modulation strategy. They demonstrated for the first time that the response to the excitation modulation frequency of a PD can be employed to discriminate the incident light wavelength. (2020-11-11)

Invisible organic light-emitting diodes reach new world record
You can't see it with the naked eye, but a new fluorescent organic light-emitting diode (OLED) could shed light on the development of innovative applications in devices such as smartphone and television displays using near-infrared light. Created through the combined work of engineers from Polytechnique Montréal and chemists from Université de Montréal, this fluorescent OLED is 300% more efficient than existing OLEDs in its category. The research team published today details in the journal Advanced Functional Materials. (2020-11-11)

More green spaces can help boost air quality, reduce heart disease deaths
The number of trees, shrubs and grasses in an area - known as green space or greenness - can improve air quality, counteract air pollution and may reduce heart disease deaths. Policies that improve environmental factors also can improve cardiovascular health among a diverse population. (2020-11-09)

Tiny device enables new record in super-fast quantum light detection
Researchers from the University of Bristol's Quantum Engineering Technology Labs (QET Labs) and Université Côte d'Azur have made a new miniaturized light detector to measure quantum features of light in more detail than ever before. The device, made from two silicon chips working together, was used to measure the unique properties of ''squeezed'' quantum light at record high speeds. (2020-11-09)

Maunakea telescopes confirm first brown dwarf discovered by radio observations
A collaboration between the LOw Frequency ARray (LOFAR) radio telescope in Europe, the Gemini North telescope, and the NASA InfraRed Telescope Facility (IRTF), both on Maunakea in Hawai'i, has led to the first direct discovery of a cold brown dwarf from its radio wavelength emission. Along with paving the way for future brown dwarf discoveries, this result is an important step towards applying radio astronomy to the exciting field of exoplanets. (2020-11-09)

Anti-hacking based on the circular polarization direction of light
The Internet of Things (IoT) allowing smart phones, home appliances, drones and self-driving vehicles to exchange digital information in real time requires a powerful security solution, as it can have a direct impact on user safety and assets. A solution for IoT security that has been is a physical unclonable function (PUF) that can supplement software-based key security vulnerable to various attack or physical attack. (2020-11-06)

Investigating optical activity under an external magnetic field
A new study published in EPJ B by Chengping Yin, Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China, aims to derive an analytical model of optical activity in black phosphorous under an external magnetic field. (2020-11-06)

Perspectives of infrared spectroscopy in quantitative estimation of proteins
The present review describes the basic principle and the instrumentation of IR spectroscopy along with its advancements. Beyond this, various applications of this technique in determination of protein structure and quantification in different materials such as foods stuffs, biotechnological products and biological fluids have also been summarized. (2020-11-06)

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