The device, reported in Advanced Photonics, functions as an optical black hole or optical white hole, and rests on a principle known as "coherent perfect absorption" of light waves.

A grayscale ballerina who appears to be moving. A human who can fit in a doll box. A black-and-white prism that appears to ...

A new optical illusion has a simple premise but might be harder than it looks. Against a pink background, the word "delay" is repeated multiple times and printed in black. One of the words is ...

In the realm of general relativity, black holes are well-known for their ability to trap light and matter by bending spacetime, creating a point of no return. While black holes have fascinated ...