With free-space optical communications in mind, researchers used a nanostructured birefringent metasurface to achieve a 16-fold increase in the corrected beam signal in mid-to-high-turbulence ...

Abstract: This article proposes a scale-independent adaptive control strategy that allows a quadrotor to rely solely on optic flow output to achieve a soft vertical landing on stationary surfaces.

Abstract: We investigated the acetone gas sensitivity of an optical interferometric surface stress sensor composed of an ultrathin freestanding Parylene-C membrane and a PMMA gas-absorbing layer. The ...

Measuring blood flow in the brain is critical for responding to a range of neurological problems, including stroke, traumatic brain injury (TBI) and vascular dementia. But existing techniques, ...

Measuring how well blood flows to the brain is crucial for understanding a wide range of neurological issues, from strokes to migraines to traumatic brain injuries. Obtaining such measurements ...

Installing a smart water sensor can save you a lot of money and hassle. The best leak detectors we've tested immediately alert you to issues and even shut off your home's water supply. I’ve been ...

Oct. 25, 2025 — A UCLA-led team has achieved the sharpest-ever view of a distant star’s disk using a groundbreaking photonic lantern device on a single telescope—no multi-telescope array required.