Using air to deflect lasers
Using a novel method, beams of laser light can be deflected using air alone. An invisible grating made only of air is not only immune to damage from the laser light, but it also preserves the original quality of the beam, reports an interdisciplinary.....»»
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.....»»
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......»»
Hubble sees the dramatic collision of NASA’s DART spacecraft and an asteroid
NASA says the test has shown it is possible to deflect an asteroid if one were threatening Earth -- but only if it is spotted in time......»»
New results from NASA"s DART planetary defense mission confirm we could deflect deadly asteroids
What would we do if we spotted a hazardous asteroid on a collision course with Earth? Could we deflect it safely to prevent the impact?.....»»
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......»»
Lasers, drones and AI: The future of weeding
Using AI technology, the latest weeding systems can automatically find and spray individual weeds......»»
Lasers, drones and AI: the future of weeding
Using AI technology, the latest weeding systems can automatically find and spray individual weeds......»»
Let’s-a go to Super Nintendo World, Hollywood’s new interactive theme park
Ars tries enchanting attractions and adorable meals in Universal Studios Hollywood. Enlarge / Watch out, if SMB3 is any guide, he breathes lasers... Nintendo is often referred to as "the Disney of video games." But whil.....»»
Using lasers, researchers can directly control the spin of a nuclei, which can encode quantum information
In principle, quantum-based devices such as computers and sensors could vastly outperform conventional digital technologies for carrying out many complex tasks. But developing such devices in practice has been a challenging problem despite great inve.....»»
A liquid laser that is robust in air and tunable by wind
Scientists from the Tsukuba Research Center for Energy Materials Science at the University of Tsukuba demonstrated a simple method to produce ionic liquid microdroplets that work as flexible, long-lasting, and pneumatically tunable lasers. Unlike exi.....»»
How Fiber Optic Cables Could Warn You of an Earthquake
By firing lasers through underground fibers, scientists can detect seismic waves and perhaps improve alerts—giving people precious time to prepare......»»
Creating "ghostly mirrors" for high-power lasers
Laser-driven 'mirrors' capable of reflecting or manipulating light have been produced in research led at the University of Strathclyde......»»
New strategy uses ionic liquids to change laser colors with ease
Lasers are intense beams of colored light. Depending on their color and other properties, they can scan your groceries, cut through metal, eradicate tumors, and even trigger nuclear fusion. But not every laser color is available with the right proper.....»»
Lasers Are Mapping Scotland’s Mysterious Iron Age Passages
Digitized archaeology is making souterrains—subterranean passages in the Highlands—accessible in a way Indiana Jones could only dream of......»»
Scientists use powerful lasers to divert lightning bolts
Using lasers to divert potentially damaging lightning strikes may sound like science fiction, but some clever folks in Switzerland have apparently done it......»»
Lasers used to guide lightning strikes to a safe target
Lightning strikes flow along laser's path for tens of meters. Enlarge / The laser beam passes near the lightning rod on the Säntis Tower. (credit: TRUMPF/Martin Stollberg ) Lightning rods protect buildings by providing.....»»
Scientists achieve phonon and photon lasing in optomechanical cavities
Since the introduction of the first ruby laser—a solid-state laser that uses the synthetic ruby crystal as its laser medium—in 1960, the use of lasers has expanded significantly in scientific, medical and industrial fields......»»
Radiation build-up and dissipation in Raman random fiber laser
Raman random fiber lasers (RRFL) have attractive features, such as their simple structure, excellent wavelength-tunability and high optical-optical conversion efficiency. They show great potential for long-distance fiber sensing, speckle-free imaging.....»»
High-performance visible-light lasers that fit on a fingertip
As technologies keep advancing at exponential rates and demand for new devices rises accordingly, miniaturizing systems into chips has become increasingly important. Microelectronics has changed the way we manipulate electricity, enabling sophisticat.....»»