Quantum strategies fail to improve capacity of quantum optical communication channels
Trade-off coding for quantum communication provides more benefits than previously thought
Retroreflector transmits light with negligible power consumption
New way to store light could prove useful for optical communication
Physicists describe how to make time-reversed light pulses
Vertical cavity quantum switch could lead us away from electronics-based computing
Rediscovering spontaneous light emission
Berkeley Lab researchers have developed a nano-sized optical antenna that can greatly enhance the spontaneous emission of light from atoms, molecules and semiconductor quantum dots. This advance opens the ...
This Slinky lookalike 'hyperlens' helps us see tiny objects
It looks like a Slinky suspended in motion.
'Spooky action at a distance' aboard the ISS
(Phys.org) —Albert Einstein famously described quantum entanglement as "spooky action at distance"; however, up until now experiments that examine this peculiar aspect of physics have been limited to relatively ...
Team first to detect exciton in metal
University of Pittsburgh researchers have become the first to detect a fundamental particle of light-matter interaction in metals, the exciton. The team will publish its work online June 1 in Nature Physics.
Bending the light with a tiny chip
(Phys.org) —Imagine that you are in a meeting with coworkers or at a gathering of friends. You pull out your cell phone to show a presentation or a video on YouTube. But you don't use the tiny screen; your ...
A new laser for a faster internet
(Phys.org) —A new laser developed by a research group at Caltech holds the potential to increase by orders of magnitude the rate of data transmission in the optical-fiber network—the backbone of the Internet.
Graphene photonics breakthrough promises fast-speed, low-cost communications
(Phys.org) —Swinburne researchers have developed a high-quality continuous graphene oxide thin film that shows potential for ultrafast telecommunications.
New material could speed up underwater communications by orders of magnitude
(Phys.org) —University of California, San Diego electrical engineering professor Zhaowei Liu and colleagues have taken the first steps in a project to develop fast-blinking LED systems for underwater optical ...