News tagged with energy spectrum
Novel negative-index metamaterial that responds to visible light designed
A group of scientists led by researchers from the California Institute of Technology has engineered a type of artificial optical material—a metamaterial—with a particular three-dimensional structure such that ...
Apr 22, 2010 |
4.8 / 5 (43) |
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A breakthrough for terahertz semiconductor lasers
(PhysOrg.com) -- Potential applications, says an engineering professor, include disease diagnosis and detection of concealed explosives.
Jan 13, 2011 |
3.5 / 5 (11) |
3
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Probing the dark side of the universe
Advancing into the next frontier in astrophysics and cosmology depends on our ability to detect the presence of a particular type of wave in space, a primordial gravitational wave. Much like ripples moving ...
May 20, 2010 |
4.6 / 5 (15) |
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To Surf, or to Dance? Electrons' Extracurricular Activities Affect Superconductivity
(PhysOrg.com) -- Superconductors, the wonder materials that transport electricity without any resistance or energy loss, appear to be more complex than previously thought, according to research published online this week in Nature Physics by scientists at the Stanford Institute for ...
Apr 06, 2010 |
5 / 5 (11) |
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Stretching opens up possibilities for graphene
(PhysOrg.com) -- Researchers say they have found a simple way to improve the semiconducting properties of the world’s thinnest material - by giving it a good tug.
Nanotechnology / Nanomaterials
Sep 28, 2009 |
4.9 / 5 (13) |
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New kind of solar cell could capture significantly more energy than current cells
New solar cells could increase the maximum efficiency of solar panels by over 25%, according to scientists from the University of Cambridge.
Feb 08, 2012 |
4.3 / 5 (14) |
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Graphene Yields Secrets to Its Extraordinary Properties
(PhysOrg.com) -- Applying innovative measurement techniques, researchers from the Georgia Institute of Technology and the National Institute of Standards and Technology have directly measured the unusual energy ...
May 14, 2009 |
4.8 / 5 (26) |
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Hydrogen-making algae's 'Achilles' heel' discovered
(PhysOrg.com) -- Scientists have discovered how oxygen stops green algae from producing hydrogen. The findings could help those working towards 'solar H2-farms' in which microorganisms produce hydrogen fuel ...
Sep 29, 2009 |
4.5 / 5 (11) |
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Metal oxides hold the key to cheap, green energy
Harnessing the energy of sunlight can be as simple as tuning the optical and electronic properties of metal oxides at the atomic level by making an artificial crystal or super-lattice 'sandwich' says a Binghamton ...
Nanotechnology / Nanomaterials
Apr 19, 2012 |
4.9 / 5 (10) |
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Comparing energy conversion of plants and solar cells
Scientists now have a way to more accurately compare how efficiently plants and photovoltaic, or solar, cells convert sunlight into energy, thanks to findings by a research consortium that included a U.S. ...
Technology / Energy & Green Tech
Jan 16, 2012 |
2.3 / 5 (3) |
3
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Dark matter: Physicists may have found piece of the puzzle
European astronomers said on Wednesday that an anomalous energy signal detected by an orbiting satellite could be a telltale of the enigmatic substance known as dark matter.
Apr 01, 2009 |
3.9 / 5 (27) |
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A single polymer can be used to fabricate both thin-film transistors and solar cells
Polymers are the material of choice for making thin-film transistors and solar cells. They are also potentially suitable for manufacture using economical, high-throughput techniques, such as roll-to-roll and inkjet printing ...
Nov 17, 2011 |
3.5 / 5 (2) |
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Lightwave electronics at sharp metal tips
(PhysOrg.com) -- Scientists at the Max Planck Institute of Quantum Optics control for the first time the emission of electrons from metal tips with femtosecond lasers alone.
Jul 07, 2011 |
4 / 5 (4) |
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Swift finds a gamma-ray burst with a dual personality (w/ video)
(PhysOrg.com) -- A peculiar cosmic explosion first detected by NASA's Swift observatory on Christmas Day 2010 was caused either by a novel type of supernova located billions of light-years away or an unusual ...
Nov 30, 2011 |
4.1 / 5 (8) |
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High in Sodium: Highly Charged Tungsten Ions May Diagnose Fusion Energy Reactors
(PhysOrg.com) -- Just as health-food manufacturers work on developing the best possible sodium substitutes for low-salt diets, physicists at the National Institute of Standards and Technology have acquired ...
Sep 08, 2009 |
4.5 / 5 (10) |
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