Negative refraction of light using atoms instead of metamaterials Date: February 14, 2025 Source: Lancaster University Summary: Scientists have demonstrated that negative refraction can be ...

In this extract from the new book Beautiful Experiments: An Illustrated History of Experimental Science, science writer Philip Ball explains how Isaac Newton transformed our understanding of light.

Scientists have created a new class of laser beam that appears to violate long-held laws of light physics. Known as “spacetime wave packets,” these lasers follow different rules of refraction ...