Terahertz radiation (THz), electromagnetic radiation with frequencies ranging from 0.1 and 10 THz, is central to the ...

This special attention centers around the coherent nature of the light, the small beam diameter ... for a 0-degree angle of incidence (AOI). Figure 1: A 488-nm laser set with sputtered optics.

Researchers have proposed a new propulsion method that could make ... Most theoretical studies on "beam riders" for interstellar travel have focused on laser beams, which are composed of particles ...

“We have demonstrated the method by printing 120-nanometer-resolution structures using a low-cost diode laser,” Pan said. “We also demonstrated parallel nanoprinting using a nine-by-nine array laser ...