Controlling light with a material three atoms thick
Most of us control light all the time without even thinking about it, usually in mundane ways: we don a pair of sunglasses and put on sunscreen, and close—or open—our window blinds.
Most of us control light all the time without even thinking about it, usually in mundane ways: we don a pair of sunglasses and put on sunscreen, and close—or open—our window blinds.
General Physics
Oct 22, 2021
0
262
A pair of researchers, one with the Langevin Institute, the other a company called Greenerwave, both in France, has developed a way to use ordinary Wi-Fi signals to perform analog, wave-based computations. In their paper ...
The upside of Wi-Fi is that it's everywhere - invisibly connecting laptops to printers, allowing smartphones to make calls or stream movies without cell service, and letting online gamers battle it out.
Telecom
Feb 23, 2016
6
3924
Imagine a world in which your wristwatch or other wearable device communicates directly with your online profiles, storing information about your daily activities where you can best access it – all without requiring batteries. ...
Telecom
Aug 4, 2014
2
0
(Phys.org)—A Palo Alto-based retail analytics company this week introduced a no-hardware solution for retailers seeking store traffic data on customers. The solution works simply by monitoring people's mobile devices. The ...
(Phys.org) -- A surveillance device that uses WiFi radio waves has been devised to see through walls to detect, in military and surveillance parlance, moving personnel targets. The device serves as a radar prototype designed ...
(Phys.org) -- A research team made up of members from Indiana University, Tufts and MIT and led by Erin Treacy Solovey, a has built a brain monitoring system that offloads some of the computer related activities a person ...
(PhysOrg.com) -- The US Computer Emergency Readiness Team (US-CERT) has issued a warning about a security hole in the Wi-Fi Protected Set-up protocol for Wi-Fi routers. Security researcher Stefan Viehbock discovered the vulnerability, ...
(PhysOrg.com) -- Broadcom is highlighting a second coming of Wi-Fi in the name of the new IEEE standard 802.11ac, with this weeks announcement that its products based on the nascent standard will be ready for shipping ...
For most of the 20th century, the paradigm of wireless communication was a radio station with a single high-power transmitter. As long as you were within 20 miles or so of the transmitter, you could pick up the station.
Computer Sciences
Apr 12, 2011
0
0