Latest Photon Stories

2011-01-25 11:53:15

They said it could be done and now they've done it. What's more, they did it with a GRIN. A team of researchers with the U.S. Department of Energy (DOE)'s Lawrence Berkeley National Laboratory (Berkeley Lab) and the University of California, Berkeley, have carried out the first experimental demonstration of GRIN "“ for gradient index "“ plasmonics, a hybrid technology that opens the door to a wide range of exotic optics, including superfast computers based on light rather than...

2011-01-20 14:11:22

The quantum computers of tomorrow might use photons, or particles of light, to move around the data they need to make calculations, but photons are tricky to work with. Two new papers* by researchers working at the National Institute of Standards and Technology (NIST) have brought science closer to creating reliable sources of photons for these long-heralded devices. In principle, quantum computers can perform calculations that are impossible or impractical using conventional computers by...

2011-01-13 08:40:00

BOSTON, Jan. 13, 2011 /PRNewswire/ -- Rapid growth of the German photovoltaic (PV) market, the world's largest market for solar energy, will lead to steep incentive reductions in 2011 and 2012, causing an excess supply-driven price crash across the global PV supply chain, according to PHOTON Consulting's 2011 PV sector outlook report, Solar Annual 2010-2011: Cash In. In the recently released report, the PHOTON Consulting team anticipates that the saturation of the German PV market will...

2010-12-21 08:00:00

CAMBRIDGE, Mass., Dec. 21, 2010 /PRNewswire/ -- Raytheon BBN Technologies, a wholly owned subsidiary of Raytheon Company (NYSE: RTN), has been awarded $2.1 million in funding by DARPA (the Defense Advanced Research Projects Agency) for two projects under the Information in a Photon, or InPho, program. The goal of the two projects is to develop new theory and experimental techniques that enable optical communications and imaging systems to operate at their ultimate limits of information...

2010-11-26 07:55:00

Completely new source of light for many applications Physicists from the University of Bonn have developed a completely new source of light, a so-called Bose-Einstein condensate consisting of photons. Until recently, experts had thought this impossible. This method may potentially be suitable for designing novel light sources resembling lasers that work in the x-ray range. Among other applications, they might allow building more powerful computer chips. The scientists are reporting on their...

2010-11-17 22:07:39

Researchers at the California Institute of Technology (Caltech) have demonstrated quantum entanglement for a quantum state stored in four spatially distinct atomic memories. Their work, described in the November 18 issue of the journal Nature, also demonstrated a quantum interface between the atomic memories"”which represent something akin to a computer "hard drive" for entanglement"”and four beams of light, thereby enabling the four-fold entanglement to be distributed by photons...

2010-11-12 01:42:09

Controlling the flow of light with a novel optical transistor Controlling and modulating the flow of light is essential in today's telecommunications-based society. Professor Tobias Kippenberg and his team in EPFL's Laboratory of Photonics and Quantum Measurements have discovered a novel way to couple light and vibrations. Using this discovery, they built a device in which a beam of light traveling through an optical microresonator could be controlled by a second, stronger light beam. The...

2010-11-07 00:16:38

A new analysis technique for the design and optimization of beam optics has successfully been used to model the group behavior of electron beams over a linear accelerator, paving the way for its use at linear accelerator based light source facilities around the world. Tokyo, Japan (PRWeb UK) November 5, 2010 A new analysis technique for the design and optimization of beam optics has successfully been used to model the group behavior of electron beams over a linear accelerator, paving the...

2010-10-20 00:49:48

Critical component of quantum communication device may enable cryptography When the military needs to send the key to encrypted data across the world, it can't necessarily rely on today's communication lines, where the message could be covertly intercepted. But physicists at the Georgia Institute of Technology in Atlanta are developing a new, more secure way to send such information across far distances, using existing cables and the laws of quantum mechanics. Alex Kuzmich and colleagues have...

2010-09-27 07:26:45

Using optically dense, ultra-cold clouds of rubidium atoms, researchers have made advances in three key elements needed for quantum information systems "“ including a technique for converting photons carrying quantum data to wavelengths that can be transmitted long distances on optical fiber telecom networks. The developments move quantum information networks "“ which securely encode information by entangling photons and atoms "“ closer to a possible prototype system....

Latest Photon Reference Libraries

2004-10-19 04:45:41

Electromagnetic Spectrum -- The electromagnetic spectrum describes the various types of electromagnetic radiation based on their wavelengths. Radio, representing wavelengths from a few feet to well over a mile, is at one end of the spectrum. Gamma ray radiation is at the other end: the wavelength of the harder types is so short, in the subatomic range, that we do not have instruments capable of directly measuring it. While the above classification scheme is generally accurate, in...

2004-10-19 04:45:41

Electromagnetic Radiation -- Electromagnetic radiation is a combination of oscillating electric and magnetic fields propagating through space and carrying energy from one place to another. Light is a form of electromagnetic radiation. The theoretical study of electromagnetic radiation is called electrodynamics, a subfield of electromagnetism. When any wire (or other conducting object such as an antenna) conducts alternating current, electromagnetic radiation is propagated at the same...

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Word of the Day
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.