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Layer of nanoparticles could improve LED performance and lifetime
Adding a layer of nanoparticles to LED designs could help them produce more light for the same energy, and also increase their lifetime. (2020-08-07)
Faster LEDs for wireless communications from invisible light
Researchers have solved a major problem for optical wireless communications - the process by which light carries information between cell phones and other devices. (2020-07-30)
Coastal cities leave up to 75% of seafloor exposed to harmful light pollution
New research is the first in the world to quantify the extent to which biologically important artificial light is prevalent on the seafloor and could, in turn, be having a detrimental effect on marine species. (2020-07-30)
Tailored light inspired by nature
An international research team with Prof. Cornelia Denz from the Institute of Applied Physics at the University of Münster (Germany) develop for the first time light fields using caustics that do not change during propagation. (2020-07-29)
Night-time exposure to blue light associated with increased risk of colorectal cancer
New study uses satellite images of outdoor lighting in Barcelona and Madrid. (2020-07-29)
Study reveals how different mosquitoes respond to light and ti
In a new study, researchers found that night- versus day-biting species of mosquitoes are behaviorally attracted and repelled by different colors of light at different times of day. (2020-07-27)
A new method to significantly increase the range and stability of optical tweezers
Scientists of Tomsk Polytechnic University jointly with a team of the V.E. (2020-07-23)
Wide awake: Light pollution keeps magpies and pigeons tossing and turning
La Trobe University and University of Melbourne researchers find light comparable in intensity to street lighting can disrupt the length, structure and intensity of sleep in magpies and pigeons (2020-07-23)
Seeing the light: Researchers combine technologies for better light control
A new technology that can allow for better light control without requiring large, difficult-to-integrate materials and structures has been developed by Penn State researchers. (2020-07-23)
Getting a grip on near-field light
Harvard researchers have developed a system to mold near-field light -- opening the door to unprecedented control over this powerful, largely unexplored type of light. (2020-07-23)
Instantaneous color holography system for sensing fluorescence and white light
The National Institute of Information and Communications Technology (NICT), the Japan Science and Technology Agency (JST), Toin University of Yokohama, and Chiba University have succeeded in developing a color-multiplexed holography system by which 3D information of objects illuminated by a white-light lamp and self-luminous specimens are recorded as a single multicolor hologram by a specially designed and developed monochrome image sensor. (2020-07-22)
Wireless, optical cochlear implant uses LED lights to restore hearing in rodents
Scientists have created an optical cochlear implant based on LED lights that can safely and partially restore the sensation of hearing in deaf rats and gerbils. (2020-07-22)
New detection method turns silicon cameras into mid-infrared detectors
Although mid-infrared (MIR) imaging produces images with chemically selective information, the practical implementation of the technique is hampered by the low pixel count and noise performance of current MIR cameras. (2020-07-21)
Oxygen breathes new life into solar cell research
Scientists in Australia and the United States have been able to 'upconvert' low energy light into high energy light, which can be captured by solar cells, in a new way, with oxygen the surprise secret ingredient. (2020-07-20)
New technology speeds up organic data transfer
An international research team, involving Newcastle University experts, developed visible light communication (VLC) setup capable of a data rate of 2.2?Mb/s by employing a new type of organic light-emitting diodes (OLEDs). (2020-07-17)
New research shows that laser spectral linewidth is classical-physics phenomenon
New ground-breaking research from the University of Surrey could change the way scientists understand and describe lasers - establishing a new relationship between classical and quantum physics. (2020-07-10)
Shining light into the dark
Curtin University researchers have discovered a new way to more accurately analyse microscopic samples by essentially making them 'glow in the dark', through the use of chemically luminescent molecules. (2020-07-09)
A different slant of light
Giant clams manipulate light to assist their symbiotic partner. (2020-07-05)
Optogenetic stimulation of the motor cortex successfully induced arm movements in monkeys
Optogenetics can control cellular functions by illuminating lights and revolutionized stimulation methods. (2020-07-03)
Light from inside the tunnel
Steering and monitoring the light-driven motion of electrons inside matter on the time-scale of a single optical cycle is a key challenge in ultrafast light wave electronics and laser-based material processing. (2020-06-30)
New research reveals plant control with the power of light
Scientists have found a way to control different plant processes -- such as when they grow -- using nothing but coloured light. (2020-06-29)
Polymers can fine-tune attractions between suspended nanocubes
In new research published in EPJ E, researchers demonstrate a high level of control over a type of colloid in which the suspended particles take the form of hollow, nanoscale cubes. (2020-06-19)
Laser technology: The Turbulence and the Comb
While the light of an ordinary laser only has one single, well-defined wavelength, a so-called ''frequency comb'' consists of different light frequencies, which are precisely arranged at regular distances, much like the teeth of a comb. (2020-06-18)
Surprising growth rates discovered in world's deepest photosynthetic corals
New research published in the journal Coral Reefs revealed unexpectedly high growth rates for deep water photosynthetic corals. (2020-06-15)
Angling for underwater WiFi
Scuba divers could send sea life shots in real time using an aquatic internet service. (2020-06-11)
Texas A&M researchers light cells using nanosheets for cancer treatment
Scientists in the Department of Biomedical Engineering at Texas A&M University are developing new ways to advance the field of regenerative medicine and cancer treatment. (2020-06-10)
New light for plants
Scientists from ITMO in collaboration with their colleagues from Tomsk Polytechnic University came up with an idea to create light sources from ceramics with the addition of chrome: the light from such lamps offers not just red but also infrared (IR) light, which is expected to have a positive effect on plants' growth. (2020-06-08)
'Whispering gallery' effect controls electron beams with light
When you speak softly in one of the galleries of St Paul's cathedral, the sound runs around the dome and visitors anywhere on its circumference can hear it. (2020-06-05)
Restoring vision by gene therapy
Latest scientific findings give hope for people with incurable retinal degeneration. (2020-06-04)
Association between outdoor light at night & breast cancer risk among postmenopausal women
Outdoor light at night was linked to a higher risk of breast cancer in a study published in the International Journal of Cancer. (2020-06-03)
Extraordinary modulation of light polarization with dark plasmons in magnetoplasmonic nanocavities
Enhancing magneto-optical effects is crucial for the size reduction of key photonic devices based on non-reciprocal propagation of light and to enable active nanophotonics. (2020-06-02)
A thin lensless camera free of noise
Scientists from Tsinghua University in China and MIT in the US report that applying a compressive sensing algorithm can significantly improve the quality of lensless imaging. (2020-05-26)
Controlling superconductors with light
IBS scientists has reported a conceptually new method to study the properties of superconductors using optical tools. (2020-05-26)
Controlling angular dispersions in optical metasurfaces
The uncontrolled angular responses of metasurfaces have significantly hampered their practical applications. (2020-05-26)
Exoplanet climate 'decoder' aids search for life
After examining a dozen types of suns and a roster of planet surfaces, Cornell University astronomers have developed a practical model - an environmental color ''decoder'' - to tease out climate clues for potentially habitable exoplanets in galaxies far away. (2020-05-18)
Controlling cells with light
Photopharmacology investigates the use of light to switch the effect of drugs on and off. (2020-05-15)
The makings of a crystal flipper
Hokkaido University scientists have fabricated a crystal that autonomously flips back and forth while changing its flipping patterns in response to lighting conditions. (2020-05-13)
A new concept of designing photocatalytic systems with reversed configurations
A reversed configuration of photocatalysts with a core/shell structure of microsized Mo2N cocatalysts and nanosized CdS photocatalysts exhibits superior solar hydrogen production. (2020-05-12)
Chameleon materials: The origin of color variation in low-dimensional perovskites
Some light-emitting diodes (LEDs) created from perovskite, a class of optoelectronic materials, emit light over a broad wavelength range. (2020-05-11)
Our pupil moves to the rhythm of the environment
Regular processes in the environment improve our eyesight. (2020-05-08)
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