News tagged with vortex beams

Laser beams with a 'twist'

(University of the Witwatersrand) Using geometric phase inside lasers for the first time, researchers find a way to change the orbital angular momentum of laser beams.

dateMar 15, 2016 in Optics & Photonics
shares89 comments 0

Electron microscopes with a twist

Vortex beams, rotating like a tornado, offer completely new possibilities for electron microscopy. A method of producing extremely intense vortex beams has been discovered at the Vienna University of Technology (TU Vienna).

dateNov 05, 2012 in General Physics
shares0 comments 2

Emerging from the vortex

Whether a car or a ball, the forces acting on a body moving in a straight line are very different to those acting on one moving in tight curves. This maxim also holds true at microscopic scales. As such, a beam of electrons ...

dateFeb 17, 2012 in General Physics
shares0 comments 0

Scientists generate rotating electron beams

A team of EU-funded scientists has come up with a way of generating rotating electron beams. The technique, described in the journal Nature, could be used to probe the magnetic properties of materials and could even be applied ...

dateSep 17, 2010 in General Physics
shares0 comments 3