An experimental antenna has received both radio frequency and near-infrared laser signals from NASA's Psyche spacecraft as it travels through deep space. This shows it's possible for the giant dish antennas of NASA's Deep ...
Space Exploration
Feb 8, 2024
0
15
Quantum key distribution (QKD) is a method used for secure or secret key exchanges between two remote users. Using secure communication, cyberscientists ultimately aim to establish a global quantum network. Existing field ...
Encrypting data in a way that ensures secure communication is an ever-growing challenge because crucial components of today's encryption systems cannot withstand future quantum computers. Researchers around the world are ...
Optics & Photonics
Mar 15, 2021
0
2446
Chinese scientists have established the world's first integrated quantum communication network, combining over 700 optical fibers on the ground with two ground-to-satellite links to achieve quantum key distribution over a ...
Quantum Physics
Jan 6, 2021
3
6955
Scientists at Tokyo Institute of Technology have fabricated a multiplexer/demultiplexer module based on a property of light that was not being exploited in communications systems: the optical vortex. Such devices will be ...
Internet
Mar 8, 2019
0
5
Broadband fiber-optics carry information on pulses of light, at the speed of light, through optical fibers. But the way the light is encoded at one end and processed at the other affects data speeds.
Optics & Photonics
Oct 24, 2018
0
3624
Speed limits apply not only to traffic. There are limitations on the control of light as well, in optical switches for internet traffic, for example. Physicists at Chalmers University of Technology now understand why it is ...
Optics & Photonics
Jun 28, 2018
0
121
A key interface component between electronic and light-based circuits receives a boost in performance through A*STAR research that combines previously independent simulations of the two systems. This research highlights the ...
Optics & Photonics
Apr 19, 2017
0
5
Today's society is growing in population and productivity puts ever higher demands on the Internet, and without scientific developments to provide ways meeting our traffic needs, it will begin to clog. Mapping photons to ...
Optics & Photonics
Mar 2, 2017
1
18
Researchers at the Department of Energy's Oak Ridge National Laboratory have set a new record in the transfer of information via superdense coding, a process by which the properties of particles like photons, protons and ...
General Physics
Feb 1, 2017
0
537
