News tagged with photons
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Hot Electrons Could Double Solar Cell Power Efficiency
Dec 18, 2009 |
4.2 / 5 (13) |
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Scientists have experimentally verified a theory suggesting that hot electrons could double the output of solar cells. The researchers, from Boston College, have built solar cells that successfully use hot ...
Physicist Jack Harris Is Honored by DARPA as One of Nation's 'Rising Stars'
Dec 04, 2009 |
5 / 5 (1) |
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(PhysOrg.com) -- Jack Harris, an associate professor of physics, has received one of this year's Young Faculty Awards (YFA) from the Defense Advanced Research Projects Agency (DARPA). He is one of 33 "rising stars" across ...
Caltech scientists film photons with electrons
Dec 16, 2009 |
4.9 / 5 (21) |
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(PhysOrg.com) -- Techniques recently invented by researchers at the California Institute of Technology -- which allow the real-time, real-space visualization of fleeting changes in the structure of nanoscale ...
Using lasers to cool and manipulate molecules
Dec 07, 2009 |
4.8 / 5 (13) |
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(PhysOrg.com) -- "For years, we have been using laser cooling to trap and manipulate atoms," David DeMille tells PhysOrg.com. "This has been very useful for both basic science and many applications. Recent ...
Miracle light: Can lasers solve the energy crisis?
Dec 15, 2009 |
4.4 / 5 (14) |
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Next year will mark the 50th birthday of the laser, one of the most productive and widely used mega-inventions of the last century. Scientists hope that 2010 also will see the launch of laser technology's greatest challenge: ...
Fermi Telescope Peers Deep into Microquasar (w/ Video)
Nov 27, 2009 |
4.8 / 5 (17) |
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(PhysOrg.com) -- NASA's Fermi Gamma-ray Space Telescope has made the first unambiguous detection of high-energy gamma-rays from an enigmatic binary system known as Cygnus X-3. The system pairs a hot, massive ...
New structure could produce efficient semiconductor laser sources
Dec 14, 2009 |
4.7 / 5 (3) |
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(PhysOrg.com) -- University of Wisconsin-Madison researchers have achieved a nanoscale laser structure they anticipate will produce semiconductor lasers in the next two years that are more than twice as efficient ...
Researcher studies the universe through quantum electrodynamics
Dec 17, 2009 |
3.6 / 5 (9) |
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(PhysOrg.com) -- Fundamental constants, such as the standards for length and mass, are a given in our society. However, research has shown that these constants might be changing slightly with the expansion of the universe.
Physicists see through the opaque with 'T-rays'
Dec 18, 2009 |
4.2 / 5 (11) |
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"T-rays" may make X-rays obsolete as a means of detecting bombs on terrorists or illegal drugs on traffickers, among other uses, contends a Texas A&M physicist who is helping lay the theoretical groundwork to make the concept ...
Light-Driven Nanorod Could Roll on Water
Dec 18, 2009 |
4 / 5 (9) |
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(PhysOrg.com) -- In a recent study, researchers have examined the possibility of rolling a nanorod on the surface of water. On the macroscale, perhaps the closest analogy might be the sport of logrolling, ...
List of search results for photons
