Professor Ayman Abouraddy‘s paper “Anomalous refraction of optical spacetime wave packets” in Nature Photonics has been highlighted in an article in vice.com.
![Refraction of wave packets](https://creol.ucf.edu/wp-content/uploads/sites/2/2020/10/Refraction-of-wave-packets-300x271.jpg)
“One of the most basic properties of light is that it changes speed and direction in different substances, such as water or air. This process, known as refraction, explains why a glass prism splits light into many colors and why a pool may appear shallower than it really is when viewed from a deck or diving board.
Now, scientists have managed to defy this photonic principle with a special laser made of “spacetime wave packets” that do not slow down in denser materials, according to a recent study published in Nature Photonics. In fact, this new class of lasers can actually accelerate in a dense medium, among its many other optical superpowers.”