News tagged with oxygen ions

Carving diamonds for optical components

Thanks to a new technique developed at EPFL, optical diffraction gratings can now be made out of pure diamond, with their surfaces smoothed down to the very last atom. These new devices can be used to alter the wavelength ...

dateSep 05, 2017 in Optics & Photonics
shares6 comments 0

Successful filming of fastest aurora flickering

Auroras are typically described as slowly shimmering curtains of light illuminating the sky. However, when an explosive aurora known as a breakup occurs, it sometimes leads to a flickering phenomenon. When an aurora flickers, ...

dateAug 10, 2017 in Earth Sciences
shares8 comments 0