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Latest Photon Stories

2009-09-30 07:51:38

University of Michigan physicists have created the first atomic-scale maps of quantum dots, a major step toward the goal of producing "designer dots" that can be tailored for specific applications.

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2009-09-28 06:55:00

Physicists at UC San Diego have successfully created speedy integrated circuits with particles called “excitons” that operate at commercially cold temperatures, bringing the possibility of a new type of extremely fast computer based on excitons closer to reality.

2009-09-09 09:57:35

The speed of light, 300 million meters per second, was long thought an immutable constant and has defined our understanding of matter and energy but recent research in the area of optics and photonics is proving that we can manipulate light to some ingenious and hugely lucrative ends.

2009-09-08 13:16:25

Researchers at Ben-Gurion University of the Negev have developed thin films that exhibit carrier multiplication (CM). This development is of great interest for future solar cells.

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2009-09-04 10:45:00

A new silicon chip the size of a penny uses photons to run Shor's algorithm - a well-known quantum approach - to solve mathematic problems.

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2009-08-26 13:40:00

In what may prove to be a major development for scientists in fields ranging from forensics to quantum communications, researchers at the National Institute of Standards and Technology (NIST) have developed a new, highly sensitive

2009-08-17 09:18:31

Because the new device, called a "spaser," is the first of its kind to emit visible light, it represents a critical component for possible future technologies based on "nanophotonic" circuitry, said Vladimir Shalaev, the Robert and Anne Burnett Professor of Electrical and Computer Engineering at Purdue University.

2009-08-10 07:20:00

RANCHO SANTA MARGARITA, Calif., Aug. 10 /PRNewswire/ -- Most of human history has witnessed people living and working outdoors during the light of day, absorbing "life-charging" full-spectrum solar energy from the sky.

2009-07-31 10:00:00

BIRMINGHAM, N.J., July 31 /PRNewswire/ -- Photon Technology International (PTI), a known innovator in fluorescence with over 26 years of experience is once again expanding the frontiers of detection to attomolar levels with its new QuantaMaster(TM) 40 Spectrofluorometer. While typical spectrofluorometers struggle with picomolar (10(-12))( )detection, which is already a very tiny amount, the new PTI system can now detect attomolar (10(-18)) amounts, allowing it to detect six orders of...

2009-07-30 11:46:39

A well-established physical law describes the transfer of heat between two objects, but some physicists have long predicted that the law should break down when the objects are very close together.


Latest Photon Reference Libraries

6_c9b95f985acbe749f13bf6301a3180a85
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...

6_c9b95f985acbe749f13bf6301a3180a84
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
ecotone
  • A transitional zone between two communities containing the characteristic species of each.
The word 'ecotone' comes 'eco-' plus a Greek root meaning 'tension'.