Conventional lenses, made of shaped glass, are limited in how precisely they can redirect beams of incoming light and make them meet at a point. Now, a team led by Zhengtong Liu at the A*STAR Institute of High Performance ...
Optics & Photonics
Aug 14, 2013
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Entanglement is a key resource for upcoming quantum computers and simulators. Now, physicists in Innsbruck and Geneva realized a new, reliable method to verify entanglement in the laboratory using a minimal number of assumptions ...
Quantum Physics
Aug 5, 2013
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Engineers at the California Institute of Technology (Caltech) have devised a method to convert a relatively inexpensive conventional microscope into a billion-pixel imaging system that significantly outperforms the best available ...
Optics & Photonics
Jul 29, 2013
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There are several ways to "trap" a beam of light—usually with mirrors, other reflective surfaces, or high-tech materials such as photonic crystals. But now researchers at MIT have discovered a new method to trap light that ...
General Physics
Jul 10, 2013
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(Phys.org) —The Sun's outer atmosphere, or corona, has posed an enduring mystery. Why is it so hot? The Sun's visible surface is only 10,000 degrees Fahrenheit, but as you move outward the temperature shoots up to millions ...
Space Exploration
Jul 9, 2013
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TU Vienna has managed to turn the oscillation direction of beams of light – simply by applying an electrical current to a special material. This way, a transistor can be built that functions with light instead of electrical ...
General Physics
Jul 8, 2013
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Optical computing—using light rather than electricity to perform calculations—could pay dividends for both conventional computers and quantum computers, largely hypothetical devices that could perform some types of computations ...
Quantum Physics
Jul 4, 2013
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(Phys.org) —A technique developed several years ago at the National Institute of Standards and Technology (NIST) for improving optical microscopes now has been applied to monitoring the next generation of computer chip ...
Optics & Photonics
Jun 26, 2013
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Picture two light beams intersecting one another in space. When the beams touch one another, does the light bend? Reflect? Combine into a single beam?
Optics & Photonics
Jun 20, 2013
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(Phys.org) —A research team composed of members from China, Singapore and Canada has built a simple quantum computer that has proven a quantum algorithm developed in 2009. In their paper published in Physical Review Letters, ...
