Home > News > Light 'frozen' in its tracks
December 11th, 2003
Light 'frozen' in its tracks
A pulse of light has been stopped in its tracks with all its photons intact, reveal US physicists. In a vacuum, light travels at the phenomenal speed of 300,000,000 metres per second. Scientists can exploit the way that the electric and magnetic fields in light interact with matter to slow it down. Mikhail Lukin and colleagues at Harvard University in Cambridge, Massachusetts managed to stop light without this loss by firing a short burst of red laser light into a gas of hot rubidium atoms.
Nanoscale resistors for quantum devices: The electrical characteristics of new thin-film chromium oxide resistors that can be tuned by controlling the oxygen content detailed in the 'Journal of Applied Physics' December 9th, 2014
Electron pairs on demand: Controlled emission and spatial splitting of electron pairs demonstrated December 4th, 2014
Graphene layer reads optical information from nanodiamonds electronically: Possible read head for quantum computers December 1st, 2014
University of Minnesota engineers make sound loud enough to bend light on a computer chip: Device could improve wireless communications systems November 28th, 2014