Electrons play many roles in solid materials. When they are weakly bound and able to travel—i.e., mobile—they can enable ...

What color is moonlight typically, and what other colors can moonlight look like from our perspective on Earth?

An astronaut aboard the International Space Station has shared a striking photo of what is known as a Transient Luminous ...

In a world filled with artificial light and fast-paced routines, returning to natural sources of red light, such as sunrise ...

Non-destructive inspection of semiconductor optical waveguides was demonstrated using optical coherence tomography with a visible broadband light source (vis-OCT). Comparisons of measured height and ...

When surgeons dissect tissue to remove a tumor or make a repair, they must work cautiously, relying on electrophysical ...

EPFL scientists have developed a new technique that lets researchers watch, with unprecedented sensitivity, how materials ...

In this paper, we present a comprehensive channel modeling and characterization study for visible light communications. Our study is based on ray tracing, which allows for an accurate description of ...