News tagged with optical transitions
New Research Promises Better Atomic Clocks
Apr 22, 2009 |
4.7 / 5 (9) |
1
(PhysOrg.com) -- The most accurate timekeepers in the world are atomic clocks, which tell time based on the absorption of a very specific and unchanging microwave frequency, which induces electrons in an atom to “jump” from ...
Quantum dots as midinfrared emitters
Feb 23, 2009 |
4.1 / 5 (10) |
1
(PhysOrg.com) -- “People are interested in the mid-infrared,” Dan Wasserman tells PhysOrg.com. Infrared light has a wavelength longer than visible light, and many molecules have numerous very strong optical resonances in the ...
Search results for optical transitions
The Energy Sources of Ultraluminous Galaxies
6 hours ago |
4.3 / 5 (7) |
0
(PhysOrg.com) -- Ultraluminous infrared galaxies ((ULIRGs) are galaxies whose luminosity exceeds that of a trillion suns; for comparison, the Milky Way galaxy has a typical (and much more modest) luminosity ...
Chemists get custom-designed microscopic particles to self-assemble in liquid crystal
Nov 25, 2009 |
5 / 5 (5) |
0
(PhysOrg.com) -- The scientists anticipate their "LithoParticles" will have significant applications in photonics, optical communications and other areas.
Selling chip makers on optical computing
Nov 24, 2009 |
4.6 / 5 (11) |
1
(PhysOrg.com) -- Computer chips that transmit data with light instead of electricity consume much less power than conventional chips, but so far, they've remained laboratory curiosities. Professors Vladimir ...
New device enables early detection of cancerous skin tumors
Nov 24, 2009 |
not rated yet |
0
Researchers at Ben-Gurion University of the Negev are developing a new device that detects cancerous skin tumors, including melanomas that aren't visible to the naked eye.
The Crab Nebula: Energy for 100,000 Suns
Nov 23, 2009 |
4 / 5 (9) |
1
(PhysOrg.com) -- A star's spectacular death in the constellation Taurus was observed on Earth as the supernova of 1054 A.D.
Beyond sunlight: Explorers census 17,650 ocean species between edge of darkness and black abyss (w/ Video)
Nov 22, 2009 |
4.9 / 5 (15) |
0
Census of Marine Life scientists have inventoried an astonishing abundance, diversity and distribution of deep sea species that have never known sunlight - creatures that somehow manage a living in a frigid ...
Lehigh receives grant to reduce cost of carbon capture at coal-fired power plants
Nov 20, 2009 |
3.3 / 5 (3) |
1
Lehigh University's Energy Research Center (ERC) has been awarded a grant from the U.S. Department of Energy (DOE) to develop methods of recovering and reusing the heat that would be generated by the carbon-dioxide (CO2) compressio ...
Hunting for Planets in the Dark
Nov 19, 2009 |
4.8 / 5 (4) |
5
A proposed space mission that aims to measure dark energy could also detect planets that current surveys are unable to find.
NASA Provides Venerable Hubble Hardware to Smithsonian
Space & Earth / Space Exploration
Nov 19, 2009 |
not rated yet |
0
(PhysOrg.com) -- Two key instruments from NASA's Hubble Space Telescope have a new home in the Smithsonian's National Air and Space Museum in Washington after being returned to Earth aboard space shuttle Atlantis ...
PLoS Genetics 2009 maize genome collection
Nov 19, 2009 |
not rated yet |
0
Maize is an important crop in many countries of the world. It is widely used for human consumption, animal feed, and industrial materials. It also is considered an exemplar plant species for studying domestication, molecular ...
List of search results for optical transitions
