In order to thwart forgeries, EPFL researchers propose a new miniaturized authentication system. By combining both, moire patterns and microlithography techniques, it can be easily recognized by the naked eye and impossible ...
Optics & Photonics
Jul 31, 2013
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Optical communications, or photonics, technology has failed to match the miniaturization of electronic components, mainly because of fundamental laws of classical optics. The smallest photonic devices are limited to sizes ...
Optics & Photonics
Jan 30, 2013
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A carbon-nanotube-coated lens that converts light to sound can focus high-pressure sound waves to finer points than ever before. The University of Michigan engineering researchers who developed the new therapeutic ultrasound ...
General Physics
Dec 19, 2012
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Optical fibers—the backbone of the Internet–carry movies, messages, and music at the speed of light. But for all their efficiency, these ultrathin strands of pristine glass must connect to sluggish signal switches, routers, ...
Optics & Photonics
Dec 19, 2012
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Microplastics are all around us—in the water we drink, the food we eat and the air we breathe. But before researchers can understand the real impact of these particles on health, they need faster and more effective ways ...
Environment
Apr 25, 2022
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(Phys.org)—Aalto University researchers in Finland have successfully connected a superconducting quantum bit, or qubit, with a micrometer-sized drum head. Thus they transferred information from the qubit to the resonator ...
Quantum Physics
Feb 14, 2013
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(PhysOrg.com) -- The scientists and engineers who introduced the world to tiny robots demonstrating soccer skills are creating the next level of friendly competition designed to advance microrobotics -- the field devoted ...
Engineering
Oct 20, 2009
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(PhysOrg.com) -- In the computer displays of medical equipment in hospitals and clinics, liquid crystal technologies have already found a major role. But a discovery reported from the University of Wisconsin-Madison suggests ...
Materials Science
May 19, 2011
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In modern telecommunications, light carries digital information over kilometers within seconds. Adapted optical materials control the light signals. In the Advanced Functional Materials journal, researchers from Berlin, Louvain, ...
Materials Science
Oct 5, 2012
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In some ways, granular material—such as a pile of sand—can behave much like a crystal, with its close-packed grains mimicking the precise, orderly arrangement of crystalline atoms. Now researchers at MIT have pushed that ...
General Physics
Aug 5, 2013
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