Hacker NewsApr 24

Physicists revive 1990s laser concept to propose a next-generation atomic clock

https://phys.org/news/2026-04-physicists-revive-1990s-laser-concept.html

#HackerNews #physicists #atomicclock #lasertechnology #innovation #science #news

Physicists revive 1990s laser concept to propose a next-generation atomic clock

Researchers in the US and Germany have unveiled a theoretical blueprint for an atomic clock driven by a highly synchronized laser, where atoms work in concert rather than independently. Publishing their results in Physical Review Letters, Murray Holland at JILA, University of Colorado, including John Cooper and PhD student Jarrod Reilly, together with Simon Jäger at the University of Bonn revived an idea first proposed in the 1990s—possibly charting a course toward the narrowest-linewidth lasers ever achieved.

Phys.org
Analyst207Apr 21

Navy Deploys LOCUST Laser in Sea-Based Defense Test

The US Navy has taken a significant step forward in sea-based defense by deploying its LOCUST laser system in a test, successfully firing it from the USS George H.W. Bush to counter unmanned aerial threats. This cutting-edge technology may not be about flashy destruction, but about adding a powerful new layer of defense to the Navy's…

https://osintsights.com/navy-deploys-locust-laser-in-sea-based-defense-test?utm_source=mastodon&utm_medium=social

#LocustLaser #SeabasedDefense #NavalDefense #LaserTechnology #EmergingThreats

Navy Deploys LOCUST Laser in Sea-Based Defense Test

Discover how the US Navy's LOCUST laser system is changing sea-based defense with its latest test, adding a new instrument to counter threats - read more now.

OSINTSights
ZaqHydnDec 11, 2025

I need to briefly discuss #Laser #Safety with an expert in Laser Technology or Laser Safety. Preferably someone with notable certifications or educational mysteries.

#LaserSafety #LaserTechnology

N-gated Hacker NewsNov 25, 2025
🌰🔬 A team of scientists just threw a bunch of random junk (peanuts and leaves?!🍂) into a blender and somehow got lasers out of it. 🚀⚡ Meanwhile, actual #physicists everywhere are questioning their life choices. 🤦‍♂️
https://www.degruyterbrill.com/document/doi/10.1515/nanoph-2025-0312/html #scientificbreakthroughs #lasertechnology #randomscience #humor #HackerNews #ngated
Biomaterial-based random lasers achieved from peanut kernel doped with birch leaf–derived carbon dots

The intrinsically disordered periodic architecture inherent in natural biomaterials exhibits significant potential for serving as resonant cavities, enabling the development of eco-friendly, biocompatible, and cost-effective microlaser systems. In this study, we demonstrate a biomaterial-based random laser utilizing birch leaf–derived carbon dots (CDs) as the gain medium. CDs ethanol solution was introduced into the peanut via microinjection, successfully fabricating CDs-doped peanut samples that preserved the fluorescence characteristics of the CDs in solution. Random lasing was observed on multiple surfaces of the CDs-doped peanut under pulsed laser excitation, with varying thresholds across different regions. This demonstrates that the natural disordered microstructure of biological materials can facilitate random lasing. Analysis of surface morphology and scattering patterns indicates that the lasing mechanism arises from multiple light scattering within the disordered structure of the peanut surface, forming coherent feedback loops. Furthermore, the intrinsic biocompatibility of bio-derived CDs effectively addresses the persistent toxicity concerns associated with synthetic laser materials. Such biomaterial-based random lasers could enable eco-friendly and cost-effective photonic applications.

De Gruyter Brill
Hacker NewsAug 30, 2025

Can Cheaper Lasers Handle Short Distances?

https://semiengineering.com/can-cheaper-lasers-handle-short-distances/

#HackerNews #CheaperLasers #ShortDistances #LaserTechnology #Optics #Engineering

Can Cheaper Lasers Handle Short Distances?

VCSELs may serve in more non-photonic applications.

Semiconductor Engineering
LumispotJun 25, 2025

🎉 🎉 🎉 LASER World of PHOTONICS 2025 has officially kicked off in Munich, Germany!

A heartfelt thank you to all our friends and partners who have already visited us at the booth — your presence means the world to us! For those still on the way, we warmly welcome you to join us!

📅 Dates: June 24–27, 2025
📍 Location: Trade Fair Center Messe München, Germany
🧿 Our Booth: B1 Hall 356/1

#LASERWorldofPHOTONICS2025 #Photonics #LaserTechnology #MunichTradeShow #InnovationInLaser

Engineers HeavenJun 4, 2025

🔭 What is Optical Engineering?

👉 Click here: https://engineersheaven.org/forum/topic/52
to visit our website and read the full article.

#OpticalEngineering #Photonics #LaserTechnology #FiberOptics #LightScience #EngineeringInnovation #ImagingSystems #EngineersHeaven #OpticsDesign #STEMeducation #FutureOfEngineering

What is Optical Engineering? at Engineers Heaven Q & A

A Scope of Work and Definition along with its Brief History. ,

Engineers Heaven
N-gated Hacker NewsMay 21, 2025
🚀🔫 Behold, America unveils its shiny new "pew-pew" toy, firing off a whopping 2 petawatts of pure "access denied" energy! 🛑🔒 #nginx guards the secrets while we bask in the glory of the blank page. #LaserFail
https://news.engin.umich.edu/2025/05/the-us-has-a-new-most-powerful-laser/ #LaserTechnology #EnergyInnovation #CyberSecurity #Failures #HackerNews #ngated
The US has a new most powerful laser

Hitting 2 petawatts, the NSF-funded ZEUS facility at U-M enables research that could improve medicine, national security, materials science and more.

Michigan Engineering News
jack2244Apr 8, 2025

galvo scanner
https://www.laserchina.com/galvo-scanner/
A Galvo scanner is a high-precision optical device used in laser systems for fast and accurate beam steering. It utilizes galvanometer motors to control the mirror's position, enabling precise control over laser engraving, marking, and cutting. Ideal for applications requiring speed and accuracy, it ensures smooth and detailed results in various industries.

#GalvoScanner #LaserTechnology #PrecisionLaser #LaserEngraving #LaserMarking #LaserCutting

China 2D 3D Laser Galvo Scanner Head Manufacturer

Our XY 2-Axis and XYZ 3-Axis galvo scanner delivers precision and accuracy laser scanning for your engraving, cutting, marking or welding machine.

LASERCHINA
jack2244Mar 26, 2025

laser cleaner machine
https://www.lasercleaner.com
A laser cleaner machine efficiently removes contaminants such as rust, oil, and dirt from surfaces using laser technology. It's ideal for industrial cleaning, offering a non-contact, eco-friendly solution with minimal waste. This portable and precise tool ensures smooth surfaces, improving product quality and reducing maintenance costs.

#LaserCleaner #IndustrialCleaning #SurfaceCleaning #EcoFriendly #LaserTechnology #RustRemoval

Laser Rust Removal Machine-Laser cleaning | Laser cleaner

Laser rust removal machine is a safe, effective, and fast way to remove rust from a variety of surfaces. Contact us for laser cleaning or laser cleaner!

LASERCLEANER