To get closer to quantum technology we need to develop non-classical light sources that can emit a single photon at a time and do so on demand. Scientists at EPFL have now designed one of these "single photon emitters" that ...
Optics & Photonics
May 05, 2022
0
936
Japanese Nobel laureate Isamu Akasaki, who won the physics prize for pioneering energy-efficient LED lighting—a weapon against global warming and poverty—has died aged 92, his university said Friday.
Other
Apr 02, 2021
1
8
Beam-driven wakefield acceleration approaches are promising candidates for future large-scale machines, including X-ray free electron lasers and linear colliders, as they have the potential to improve efficiency and reduce ...
Optics & Photonics
Jan 21, 2021
1
131
The Trump administration has been on a spree of environmental rollbacks, including air and auto emissions. Its next target: light bulbs.
Environment
Feb 15, 2019
32
30
The transition from light bulbs to LEDs has drastically cut the amount of electricity we use for lighting. Most of the electricity consumed by incandescent bulbs was, after all, dissipated as heat. We may now be on the verge ...
General Physics
Aug 17, 2018
0
377
General Electric has reached an agreement to sell its overseas lighting operations in Europe, the Middle East, Africa and Turkey, the conglomerate said Thursday.
Business
Feb 16, 2018
0
16
By shining a laser along the inside shell of an incandescent light bulb, physicists have performed the first experimental demonstration of an accelerating light beam in curved space. Rather than moving along a geodesic trajectory ...
Light-emitting diodes—or LEDs, as they are commonly known—have been slowly replacing incandescent light bulbs in applications ranging from car taillights to indicators on electronics since their invention in the 1960s.
Nanophysics
Nov 21, 2017
0
19
Physicists at Aalto University have discovered a microscopic mechanism that will allow gallium nitride semiconductors to be used in electronic devices that distribute large amounts of electric power.
Electronics & Semiconductors
Nov 10, 2017
0
19
Brown University researchers have demonstrated for the first time a method of substantially changing the spatial coherence of light.
Optics & Photonics
Oct 18, 2017
2
614
