Researchers at Columbia have created a chip that turns a single laser into a “frequency comb,” producing dozens of powerful light channels at once. Using a special locking mechanism to clean messy ...

Columbia Engineering researchers have created a compact light source capable of producing numerous high-power wavelengths, thereby facilitating the advancement of a new era in data center hardware and ...

Every time you check the time on your phone, make an online transaction, or use a navigation app, you are depending on the precision of atomic clocks. ...

A few years ago, researchers in Michal Lipson's lab noticed something remarkable. They were working on a project to improve LiDAR, a technology that uses lightwaves to measure distance. The lab was ...

Optical lattice clocks are emerging timekeeping devices based on tens of thousands of ultracold atoms trapped in an optical lattice (i.e., a grid of laser light). By oscillating between two distinct ...

Every time you check the time on your phone, make an online transaction, or use a navigation app, you are depending on the precision of atomic clocks. An atomic clock keeps time by relying on the ...

The East Coast Line is a critical project for energy transition and grid stability, transporting green electricity from East Holstein to the south and linking Germany to the European power grid via ...

Social media is changing how companies sell and find new leads, especially going into 2025. People rarely just scroll anymore—they buy, sign up, and even recommend brands to friends, all while hanging ...

We’ve gathered the best Prime Day sales on tested and vetted Apple gear, headphones, and beauty products, so you can rest assured that you’re getting a genuinely good deal.