A study shows photon momentum enables diagonal transitions, converting indirect semiconductors like silicon into direct ones, ...

It’s a so-called nonlinear optical phenomenon, for example, similar to the sum- and difference-frequency generation effects ...

Researchers have directly observed Floquet states in semiconductors using all-optical spectroscopy under ambient conditions, ...

Photonic applications harness the power of light-matter interactions to generate various intriguing phenomena. This has ...

The article delves into an optical illusion featuring a sailor and a hidden image of his wife. It explains how such illusions ...

Optical illusions are intriguing visual phenomena that deceive the brain into interpreting images in ways that vary from reality. Consider, for example, a classic optical illusion in which a ...

The interplay between linear and nonlinear optics plays a fundamental role in advancing optical technologies, with important ...

A video of a unique optical phenomenon known as a "glory" spotted from a plane has gone viral on TikTok. Heather Reedy, a 37-year-old registered nurse based in Virginia, spotted the mesmerizing ...

A unique quantum effect in biology could be the key to understanding a common marker of Alzheimer's, raising questions about current assumptions of the disease and informing the search for a cure.

Single-photon superradiance is a quantum phenomenon where a collective network of molecules can very efficiently absorb these high-energy light particles and re-emit them at a lower, safer energy.