X-ray lasers: Why does brighter mean darker?
When we illuminate something, we usually expect that the brighter the source we use, the brighter the resulting image will be. This rule also works for ultra-short pulses of laser light—but only up to a certain intensity. The answer to the question.....»»
Q-carbon harder, brighter than diamonds
Scientists have created a substance, Q-carbon, that blings even brighter than diamonds, but it's not for wearing. You'll take its byproducts as medicine instead......»»
High-power, high-energy, all-fiber Mamyshev oscillator
High power/energy ultrafast fiber lasers have broadband applications in material processing, medicine, advanced manufacturing and other fields. Compared with solid-state lasers, fiber lasers have the advantages of compact systems, flexibility, good h.....»»
Scientists take flight to map California"s vast snowpack and measure flooding threats
Flying thousands of feet above the Sierra Nevada in a plane equipped with specialized imaging devices, Elizabeth Carey has been scanning the mountains with lasers to precisely map the snow......»»
Which Laser Should You Buy?
Makers are confronted with so many choices of laser cutters and engravers that it can be intimidating. Here's a rough outline of the main differences between the lasers on the market today. The post Which Laser Should You Buy? appeared first on Make.....»»
AI is helping astronomers make new discoveries and learn about the universe faster than ever before
The famous first image of a black hole just got two times sharper. A research team used artificial intelligence to dramatically improve upon its first image from 2019, which now shows the black hole at the center of the M87 galaxy as darker and bigge.....»»
A collaborative study of a key property of light may help double screen luminescence
Digital displays comprising organic materials have brought about a new era in consumer electronics, helping to mass produce brighter screens that hold numerous advantages over those made of regular crystalline materials. These organic light-emitting.....»»
Advanced iPad Pro OLED screen reports boosted by LG news
We’ve been hearing consistent reports that the first iPad Pro OLED screens will use an advanced process designed to make them brighter, as well as boosting their longevity. This is backed today by a new report that LG has now reached a new milesto.....»»
NASA satellite"s elusive green lasers spotted at work
The green light streaking across the cloudy sky was something that Daichi Fujii had never seen before. The museum curator's motion-detecting cameras were set up near Japan's Mount Fuji to capture meteors, allowing him to calculate their position, bri.....»»
Efficient heat dissipation perovskite lasers using a high-thermal-conductivity diamond substrate
Perovskite lasers have rapidly achieved progress in developing continuous-wave excited lasing from a femtosecond pulse excited lasing, which is considered a critical step towards electrically excited lasing. After continuous-wave lasing at room tempe.....»»
Nanotubes as optical stopwatch for the detection of neurotransmitters
Carbon nanotubes not only shine brighter in the presence of dopamine, but also for longer. The time period of the shining serves as a new parameter to detect biological messenger substances......»»
Black and Asian people can suffer prejudice and insults from members of their families with lighter skin, says research
Black and Asian people with darker skin shades can be the subject of prejudice and insults from lighter skin members of their families, new research shows......»»
With China"s cybersecurity review of Micron, what kind of warning is it sending?
China has kicked off a cybersecurity review of Micron Technology's memory products sold in the country, making it the first foreign semiconductor company in China to face the scrutiny and casting darker clouds over its business prospects. It remains.....»»
Intense lasers magnetize solids within attoseconds
Intense laser light can induce magnetism in solids on the attosecond scale—the fastest magnetic response to date. That is the finding reached by theoreticians at the Max Planck Institute for the Structure and Dynamics of Matter in Hamburg, Germany,.....»»
Mechanisms of ultra-fast gigahertz burst femtosecond laser ablation
Gigahertz femtosecond lasers are suited to enhance and regulate laser machining quality to engineer the physicochemical properties of materials. Materials scientists seek to understand the laser-material interactions by gigahertz femtosecond lasers,.....»»
Scientists measure laser-heated plasma using Doppler weather forecasting technique
Scientists have used a common weather forecasting technique for insights into how powerful lasers turn hunks of solid material into soups of electrically charged particles known as plasmas......»»
Exploiting dark autoionizing states for enhancing extreme ultraviolet lasers
An international research team led by Professors Tsuneyuki Ozaki and François Légaré at the Institut national de la recherche scientifique (INRS), has developed a unique method to enhance the power of a laser source emitting extreme ultraviolet li.....»»
Improved chip-scale color conversion lasers could enable many next-generation quantum devices
In two new studies, researchers at the National Institute of Standards and Technology (NIST) have greatly improved the efficiency and power output of a series of chip-scale devices that generate laser light at different colors while all using the sam.....»»
Satellites and space junk may make dark night skies brighter, hindering astronomy and hiding stars from our view
Since time immemorial, humans around the world have gazed up in wonder at the night sky. The starry night sky has not only inspired countless works of music, art and poetry, but has also played an important role in timekeeping, navigation and agricul.....»»
Russia Is Powering Up a Giant Laser to Test Its Nuclear Weapons
To check that atomic weapons work, scientists run simulations of explosions using high-energy lasers—and Russia is building the strongest one of all......»»
Illuminating the science of black holes and gamma-ray bursts using high-power lasers
High-power lasers now create record-high numbers of electron-positron pairs, opening exciting opportunities to study extreme astrophysical processes, such as black holes and gamma-ray bursts......»»