Tag

Laser

All articles tagged with #laser

technology16 days ago•8 min saved

Portable 4K laser cinema: Hisense M2 Pro reimagines home viewing

Mashable’s hands-on with the Hisense M2 Pro 4K triple-laser portable projector finds it packs bright, daylight-friendly 1,300 ANSI lumens, up to 200-inch images, 240Hz gaming with 12ms input lag, and decent onboard speakers, all in a ~9-pound chassis with a carrying case. It runs Vidaa OS but accepts external streaming devices, and it requires an AC power brick (no built-in battery). Setup includes auto-focus/keystone adjustments; best for setups that can project at least 65 inches. Priced around $1,299 (often on sale near $1,099). Verdict: a strong alternative to a TV for movie nights and gaming, with the tradeoffs of size and power needs.

via Mashable|

#4k #home-theater #laser

technology17 days ago•7 min saved

Ukraine's mobile AI laser Tryzub can hit Shahed drones up to 5 km away

Ukraine's Celebra Tech says its AI-powered Tryzub laser, mounted on a trailer for rapid deployment, is in final testing and can reportedly engage drones—including Shahed-type UAVs—at up to 5 km using AI-based targeting and radar integration; earlier configurations allowed about 1,500 m for reconnaissance drones and 800–900 m for FPV drones, with potential additional uses like demining.

via Euromaidan Press|

#ai #defense #drones

science1 month ago•11 min saved

Neutrino laser concept aims to harness ghost particles

US researchers propose a 'neutrino laser'—a compact device that could emit coherent bursts of neutrinos by cooling radioactive atoms into a Bose-Einstein condensate and triggering synchronized decay via superradiance. If realized, it could transform neutrino research and enable new applications from underground communication to medical imaging, but the concept is still theoretical and faces significant technical hurdles.

via Interesting Engineering|

#bose-einstein-condensate #laser #neutrino

technology2 months ago•7 min saved

Geostationary 2-Watt Laser Delivers 1Gbps Ground Link, Outpaces Starlink

Chinese researchers demonstrated a 1 Gbps optical downlink from a geostationary satellite about 36,000 km away using a 2-watt laser and a ground receiver built to correct atmospheric distortion, achieving higher speeds than Starlink and showing how adaptive optics plus multi-plane light conversion can recover usable data through turbulence.

via The Daily Galaxy|

#adaptive-optics #geostationary-orbit #laser

defense2 months ago•2 min saved

Border Drone Downing Spurs Demands for Interagency Oversight

Democratic lawmakers condemned the Trump administration after the military used a high-powered laser to down what it said was a threatening drone near the US–Mexico border, later identified as a CBP drone, highlighting interagency coordination gaps. The incident follows a prior episode where a CBP laser hit a party balloon, and ongoing airspace restrictions near Fort Hancock, with Republicans and Democrats urging independent review and stricter coordination between the FAA, the Pentagon, and CBP. The FAA seeks a safety review of anti-drone lasers and has paused testing until it’s completed, while agency disagreements about pre-approval for laser use persist.

via The Guardian|

#cbp #coordination #defense

defense2 months ago•6 min saved

Pentagon's Laser Shot Sparks Fresh El Paso Airspace Closure

The Defense Department used a high-energy laser to shoot down a drone near Fort Hancock, Texas, triggering an FAA airspace closure and renewing scrutiny of cross-agency coordination in counter-drone operations, following a similar incident earlier this month near El Paso involving a balloon.

via The New York Times|

#airspace #defense #drone

defense2 months ago•3 min saved

Pentagon Downs CBP Drone Over Texas Border With Laser

The Defense Department says it used counter-UAS authorities to shoot down a U.S. Customs and Border Protection drone with a laser near Fort Hancock, Texas; a temporary FAA flight restriction was issued around the area, no commercial aircraft were affected, and lawmakers criticized the apparent lack of coordination between agencies.

via CBS News|

#border #counter-uas #defense

world2 months ago•16 min saved

Laser takedown triggers expanded El Paso airspace closures

The U.S. military reportedly used a directed-energy laser to down a drone, while the FAA expanded airspace closures around El Paso, Texas, as officials said operations continued and flights were affected in the border region.

via AP News|

#drone #el-paso #faa

science3 months ago•7 min saved

Laser flips magnetism in twisted 2D material, enabling light-defined circuits

Researchers demonstrated optical, non-thermal control of magnetism in a twisted bilayer MoTe2; a laser pulse reversibly flips the ferromagnetic polarity, with switching dynamics tied to whether electrons reside in a topological insulating or metallic state. This links topology and magnetism in a single platform and suggests future possibilities for light-written topological circuits and tiny interferometers on chips.

via SciTechDaily|

#laser #magnetism #moire-materials

politics4 months ago•2 min saved

DC Jury Clears Man in Laser-Targeting of Marine One Amid Trump-Era Tension

A Washington, DC jury acquitted Jacob Winkler of a felony charge for aiming a laser at Marine One as a Trump-era helicopter flight, delivering the verdict in about 35 minutes and marking a setback for US Attorney Jeanine Pirro’s office, which had pursued harsh penalties for perceived threats to the president. Defenders argued the case wasted resources policing poverty, noting Winkler was homeless with a cat toy keychain at the time of his arrest.

via The Guardian|

#dc #laser #marine-one

science7 months ago•2 min saved

Physicists Develop Innovative Mirrorless Laser Light Source

Physicists have proposed a new type of laser that operates without mirrors, using synchronized quantum emitters to produce a narrow, directional light beam, potentially revolutionizing ultra-compact light sources for nanophotonics and quantum sensing.

via Phys.org|

#laser #mirrorless #nanophotonics

science7 months ago•4 min saved

Scientists Use Ultrafast Lasers and Gold Nanoparticles to On-Demand Grow Crystals for New Materials

Scientists have developed a novel laser-based technique to 'draw' crystals precisely where needed in electronic devices using plasmonic heating of gold nanoparticles, potentially reducing costs and improving performance in applications like solar cells and sensors.

via Space|

#crystals #laser #light

science7 months ago•1 min saved

Filming at Light Speed: One Foot per Nanosecond

Brian Haidet's experiment captures laser beams at 2 billion frames per second, revealing how light appears to travel faster towards the camera due to an artifact related to special relativity, achieved through a highly upgraded setup.

via Hackaday|

#experimental-physics #high-speed-camera #laser

science8 months ago•3 min saved

France Unveils World's Most Powerful Laser Mimicking the Big Bang

France's Apollon facility has set a world record with a 10 petawatt laser, the most powerful on Earth, used to simulate early-universe conditions and advance scientific research, outpacing the US and other nations in power and reliability.

via Indian Defence Review|

#apollon #big-bang #france

science-and-technology8 months ago•4 min saved

University of Michigan's ZEUS Laser Sets New Power Record with 2-Petawatt Beam

The University of Michigan's ZEUS laser has achieved a groundbreaking 2-petawatt power output, making it the most powerful laser in the US, enabling advanced experiments in high-field science, particle acceleration, and potential technological innovations, with future experiments aiming to simulate zettawatt-scale laser interactions.

via Energy Reporters|

#high-power-laser #laser #petawatt