Satellites beaming sunlight down to Earth sound like science fiction – and they have astronomers very worried.

Everyday experience tells us that light reflected from a perfectly flat mirror will give us the correct image without any deformation. Interestingly, this is not the case when the light field itself ...

“If you wanted to take a picture of the rocket as it flew past, you would have to take into account that the light from ...

The startup Reflect Orbital aims to keep solar farms running at night by reflecting sunlight from space and has sparked ...

An overwhelming majority of handheld devices these days have ambient light sensors built into them. A large percentage of TVs and monitors do, too, and that proportion is growing. The sensors allow ...

White light interferometry (WLI) is a contact-free optical method for measuring surface height. It uses the phase difference between the light reflected off a reference mirror and the target sample to ...

We have designed and constructed a new type of reflected-light microscope to form images including only light reflected near the plane of the object. This selectivity of image formation is based on a ...

Scientists studying asteroids found that two seemingly unrelated types share a strange dusty coating of troilite. By using polarization of light instead of traditional spectra, they uncovered evidence ...

Forward-looking: Researchers at the Beijing Institute of Technology have developed a microphone that doesn't detect air vibrations like traditional models. Instead, it captures light reflected from ...