Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

The colors of rubies and emeralds are so striking that they define shades of red and green—ruby red and emerald green. But have you ever wondered how they get those colors? Paper-thin optical ...

"Why are there so many songs about rainbows?" sings Kermit the Frog in a song (about rainbows) called "Rainbow Connection" from 1979's "The Muppet Movie." And it's not just songs that feature rainbows ...

As the U.S. continues to wait for newer sunscreen ingredients, patients should use tinted sunscreens to protect against visible light that causes photodamage, melasma and hyperpigmentation, according ...

The electromagnetic spectrum is a continuous range of ... of is transparent to visible light and some infrared. Visible light and short wavelength infrared can carry high rates of data.

These sources make use of optical nonlinear effects in specially designed optical fibres to create light with a wide spectrum that can span the visible ... which feature wavelength-scale periodic ...

Researchers at The University of Manchester’s National Graphene Institute have created optical devices with a unique range of tunability, covering the entire electromagnetic spectrum ... control light ...

Among the various techniques, supercontinuum (SC) generation stands out for its ability to produce light across a wide portion of the visible and infrared spectrum. However, traditional SC sources ...

White light, such as natural daylight, consists of photons with wavelengths spread fairly evenly across a wide range of the visible spectrum. LEDs and other electric light sources are not quite as ...