Caltech researchers develop a platform to characterize ultrathin membranes for lightsails, advancing the quest for ...

The varying beam diameter at exit and beam divergence resulted in different spot ... branches are likely to show a different response in terms of laser intensity. The effect of incidence angle on ...

Scientists have developed a method for generating fast, bright proton beams using a high-repetition-rate laser-plasma ...

Scientists have unlocked a revolutionary way to generate proton beams using high-powered lasers and a simple stream of water.

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

Caltech scientists are developing laser-driven lightsails that could push spacecraft beyond our solar system. Their research ...

When patterned as diffractive lenses, LCPGs can provide non-mechanical control over beam divergence and variable focusing. These dynamic elements enable a range of applications, such as machine vision ...

Abstract: A novel technique is proposed for estimating the angle-of-arrival (AOA) in free-space laser communication based on the shape of a laser beam spot on a flat surface. Two methods are ...