Laser melting: Fewer unknowns in the laser nanosynthesis of composites
Composite particles with submicron sizes can be produced by irradiating a suspension of nanoparticles with a laser beam. Violent physical and chemical processes take place during irradiation, many of which have been poorly understood to date. Recentl.....»»
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......»»
Laser-controlled synthetic microswimmers show swarm intelligence can be caused by physical mechanisms
Seemingly spontaneously coordinated swarm behavior exhibited by large groups of animals is a fascinating and striking collective phenomenon. Experiments conducted by researchers at Leipzig University on laser-controlled synthetic microswimmers now sh.....»»
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.....»»
This cool new approach to refrigeration could replace harmful chemicals
New method uses salt and an organic solvent to change a material’s melting point. Enlarge / Berkeley Lab scientists have developed ionocaloric cooling, a new refrigeration cycle they hope could help phase out refrigerants that.....»»
Researchers create an optical tractor beam that pulls macroscopic objects
Researchers have developed a way to use laser light to pull a macroscopic object. Although microscopic optical tractor beams have been demonstrated before, this is one of the first times that laser pulling has been used on larger objects......»»
Daily Deals Jan. 11: $200 off M2 MacBook Air, $139 15-in-1 Thunderbolt 3 dock, 33% off Apple Watch & more
The top deals we discovered today include up to $200 off Apple's M2 MacBook Air, 65% off a Samsung Galaxy Smartwatch3, a deep discount of $400 off an M1 13-inch MacBook Pro, and $100 savings on a Canon Multifunction Color Laser Printer.Save $100 on a.....»»
Best laser printer deals for January 2023: Save on HP and Canon today
If you're ready to get your prints faster, read on to discover the best laser printer deals available right now......»»
Investigating the laser-induced periodic surface structure (LIPSS) of silicon
The electronic and optical devices that we use on a daily basis, such as mobile phones, LEDs and solar cells use transistors and other parts that are consistently getting smaller and more compact. With an ever-growing need for computing power, storag.....»»
Complex mechanics of cellulose composites revealed
An international team of researchers, led by Assistant Professor J Naveen (VIT, India), has finally completed and published a comprehensive survey of the complex structure of the natural fibers embedded in and reinforcing polymer composite materials......»»
Researchers reveal mechanism of fatigue damage by high thermal loads in tungsten composites
The relationship between microstructure evolution and property degradation of two representative second-phase dispersion strengthened tungsten materials after electron beam thermal loading was investigated recently by a collaborated research team fro.....»»
Leica launches the Hisense-powered $8,300 Cine 1, its first 4K Laser TV, at CES 2023
Leica, a company best-known for high-end cameras and lenses, has debuted its first Laser TV, the Cine 1, which will go on sale later in 2023......»»
Leica launches the $8,300 Cine 1, its first 4K Laser TV, at CES 2023
Leica, a company best-known for high-end cameras and lenses, has debuted its first Laser TV, the Cine 1, which will go on sale later in 2023......»»
CES 2023: Hisense’s smallest laser TV is portable and has a huge 150-inch image size
Hisense is no stranger to ultra-short throw laser projectors but at CES 2023 it pushed the technology where it's never gone before: out and about......»»
New spectroscopy technique improves trace element detection in liquid
Laser-induced breakdown spectroscopy (LIBS) is a rapid chemical analysis technology that has been well developed for trace element analyses in gases, liquids, and solids. It uses a high-power laser pulse to elicit short-lived, high-temperature plasma.....»»
Playing all the angles: A high-contrast grating structure for direction-tunable lasing
Lasers find applications across several fields ranging from telecommunications and remote sensing to medicine. There are many ways in which one can generate laser emission, or lasing, from a device or material. Consequently, there are many types of l.....»»
South Asian black carbon causes glacier loss on Tibetan Plateau
Black carbon aerosol is the product of incomplete combustion of fossil fuels and biomass, and has strong light absorption. Black carbon deposition in snow ice reduces the albedo of the snow ice surface, accelerating the melting of glaciers and snow c.....»»
Giant laser from "Star Trek" to be tested in fusion breakthrough
The breakthrough came in an impossibly small slice of time, less than it takes a beam of light to move an inch. In that tiny moment, nuclear fusion as an energy source went from far-away dream to reality. The world is now grappling with the implicati.....»»
Blu-ray player gathering dust? Turn it into a laser-scanning microscope
Not as powerful as a commerical one, but thousands cheaper. Enlarge (credit: Getty) Blu-rays never quite managed to usurp DVDs entirely. Recent estimates, based on data gathered by Nielsen VideoScan and MediaPlayNews, s.....»»
Research team develops direct laser writing system for high-resolution, high-efficiency nanofabrication
Peripheral photoinhibition (PPI) direct laser writing (DLW) is a lithography technique used to fabricate intricate 3D nanostructures that are widely employed in photonics and electronics. PPI-DLW uses two beams, one to excite the substrate and cause.....»»
It still isn’t cheap, but Samsung’s 120-inch 4K Projector is $1000 off
Samsung's Premiere 4K Smart Laser Projector is one of the best home theater projectors around and it's even more appealing on sale right now......»»