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Scientists Steer Infrared Light Through an “Invisible” Waveguide

The discovery could advance integrated photonics, on-chip optical signal transmission, and future quantum technologies.

A nanoscale gold antenna placed on a crystal can send infrared light along one narrow route, even though no physical waveguide has been carved into the material.

Researchers at the 4th Physics Institute of the University of Stuttgart and the Istituto Italiano di Tecnologia (IIT) in Milan demonstrated this mechanism in a naturally hyperbolic van der Waals material. The result could support integrated photonics, optical communication on chips, and future quantum technologies.

Electrons Mysteriously Slow to a Crawl Inside This Magnetic Material

Inside an unusual magnetic material, electrons are doing something physicists did not expect: slowing to a near crawl while moving together in quantum lockstep.

A team at the University of Chicago Pritzker School of Molecular Engineering (UChicago PME) found that electrons in Fe5GeTe2 can enter a charge-ordered state where they move collectively, remain quantum coherent, and travel far more slowly than expected.

The result could force scientists to rethink how magnetism works in this material. It may also offer a new way to store information by switching between distinct electronic and magnetic states.

“Entirely Surprising” — Scientists Have Found a Martian Meteorite Unlike Any Known Before

A meteorite found in Algeria has opened a rare window into nearly 2 billion years of Mars’ history that had largely been missing from the geological record.

Researchers at Boston College have determined that Northwest Africa (NWA) 13,441, a rock blasted from Mars before eventually reaching Earth, crystallized about 1.273 billion years ago. Its age places it squarely within a huge gap in the known record of shergottites, the most common type of Martian igneous meteorite. Even more unexpectedly, its chemistry points to a deep Martian source unlike any previously identified in this group.

“The characteristics of this meteorite were entirely surprising,” said Ethan Baxter, a Boston College professor of Earth and Environmental Sciences and founder of the university’s Center for Isotope Geochemistry. “No other Martian meteorite like this has an age of 1.27 billion years.”

The Modern Attack Chain: Rethinking Google Workspace Security in the Age of AI

Google Workspace attacks do not always begin with phishing. Stolen OAuth tokens can provide another path into Gmail, Drive, and connected systems. Material Security explains why organizations need defenses that cover the entire Workspace attack chain.

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