News tagged with cavities

RX J1532.9+3021: Extreme power of black hole revealed

(Phys.org) —Astronomers have used NASA's Chandra X-ray Observatory and a suite of other telescopes to reveal one of the most powerful black holes known. The black hole has created enormous structures in the hot gas surrounding ...

dateJan 23, 2014 in Astronomy
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Seeing a photon without absorbing it

Light is of fundamental importance. It allows us to see the world around us and record pictures of our environment. It enables communication over long distances through optical fibers. All current methods of detecting light ...

dateNov 14, 2013 in Quantum Physics
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Tiny sensors put the squeeze on light

Microelectromechanical systems, known as MEMS, are ubiquitous in modern military systems such as gyroscopes for navigation, tiny microphones for lightweight radios, and medical biosensors for assessing the wounded. Such applications ...

dateOct 24, 2013 in Optics & Photonics
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