Ex nihilo: Dynamical Casimir effect in metamaterial converts vacuum fluctuations into real photons
Nearly perfect, ultrathin invisibility cloak could have wide practical applications
Magnetic shell provides unprecedented control of magnetic fields
Physicists demonstrate first time reversal of water waves
Physicists build quantum amplifier with single artificial atom
Invisibility cloak that generates virtual images gets closer to realization
Graphene sheets enable ultrasound transmitters
University of California, Berkeley, physicists have used graphene to build lightweight ultrasonic loudspeakers and microphones, enabling people to mimic bats or dolphins' ability to use sound to communicate ...
Saharan silver ants can control electromagnetic waves over extremely broad spectrum range
Nanfang Yu, assistant professor of applied physics at Columbia Engineering, and colleagues from the University of Zürich and the University of Washington, have discovered two key strategies that enable Saharan ...
New understanding of electromagnetism could enable 'antennas on a chip'
A team of researchers from the University of Cambridge have unravelled one of the mysteries of electromagnetism, which could enable the design of antennas small enough to be integrated into an electronic ...
Theorist suggests a way to test gravitational Casimir attraction
Engineers invent a way to beam power to medical chips deep inside the body
A Stanford electrical engineer has invented a way to wirelessly transfer power deep inside the body, and then use this power to run tiny electronic medical devices such as pacemakers, nerve stimulators, or ...
New 'T-ray' tech converts light to sound for weapons detection, medical imaging
A device that essentially listens for light waves could help open up the last frontier of the electromagnetic spectrum—the terahertz range.
Device turns flat surface into spherical antenna
By depositing an array of tiny, metallic, U-shaped structures onto a dielectric material, a team of researchers in China has created a new artificial surface that can bend and focus electromagnetic waves ...
Fantastic phonons: Blocking sound, channeling heat with 'unprecedented precision'
Imagine living on a bustling city block, but free from the noise of car horns and people on the street. The emerging field of phononics could one day make this a reality.