Vacuum ultraviolet (VUV, 100–200 nm) light sources are indispensable for advanced spectroscopy, quantum research, and semiconductor lithography. Although second harmonic generation (SHG) using ...

A team of physicists has just modeled an astonishing quantum phenomenon where ultra-powerful lasers generate light from vacuum. This work could soon be experimentally validated thanks to a new ...

Researchers have theorized a new mechanism to generate high-energy "quantum light," which could be used to investigate new properties of matter at the atomic scale. The researchers, from the ...

All objects emit heat in the form of infrared light. This effect is strongest in dry, clear air, especially on cloudless nights. As a result, objects can become colder than the surrounding air. For ...

A research team under the direction of Prof. Dr Felix Deschler at Heidelberg University’s Institute for Physical Chemistry has developed a semiconductor that efficiently generates light and ...

Carbon nanotubes resemble very thin, hollow wires with a diameter of just a nanometer or so. They can generate light in various ways. For example, a laser pulse can excite negatively charged electrons ...

Carbon nanotubes can glow brilliantly when light is absorbed by a flat sheet of atoms acting as an antenna to direct that energy into the tubes. This breakthrough might help create future tiny ...

Researchers propose an unconventional way to generate light made from entangled photons. In the graphic above, photons meet the electrons of a helium atom, which then emits two entangled photons.