News tagged with quantum devices
In Brief: 'Multiple exciton collection' could result in more efficient solar cells
(PhysOrg.com) -- A University of Wyoming professor's findings, published today in the journal Science may open the door to new designs for inexpensive and higher efficiency solar cells.
Sep 30, 2010 |
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Quantum physicists turn waste heat into power
(PhysOrg.com) -- University of Arizona physicists have discovered a new way of harvesting waste heat and turning it into electrical power. Taking advantage of quantum effects, the technology holds great promise ...
Sep 24, 2010 |
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'Slow light' on a chip holds promise for optical communications
A tiny optical device built into a silicon chip has achieved the slowest light propagation on a chip to date, reducing the speed of light by a factor of 1,200 in a study reported in Nature Photonics (published online Septem ...
Sep 05, 2010 |
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Creating light sources for nanochips
(PhysOrg.com) -- "One of the most important goals in the optics community is to create and manipulate light on chip," Yinan Zhang tells PhysOrg.com. "This is especially important when it comes to improving the performance of sem ...
Aug 25, 2010 |
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Good vibrations: New atom-scale products on horizon
The generation of an electric field by the compression and expansion of solid materials is known as the piezoelectric effect, and it has a wide range of applications ranging from everyday items such as watches, ...
Aug 23, 2010 |
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Advance made toward communication, computing at 'terahertz' speeds
Physicists in the United States and Germany have discovered a way to use a gallium arsenide nanodevice as a signal processor at "terahertz" speeds, the first time it's been used for this purpose and an important step forward ...
Jul 19, 2010 |
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A pinch of light: Laser 'tweezers' for medicine, communications and harvesting energy
Star Trek fans will remember "tractor beams," lasers that allowed the Starship Enterprise to trap and move objects. Tel Aviv University is now turning this science fiction into science fact -- on a nano scale.
Jul 06, 2010 |
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Fully epitaxial microcavities: Open the door to quantum optoelectronic effects in the GaN-based system
For the very first time, a team of researchers in Germany has introduced quantum dots in fully epitaxial nitride laser structures without the need for hybrid systems -- effectively eliminating the cumbersome method of combining ...
Jun 16, 2010 |
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Physicists capture first images of atomic spin
(PhysOrg.com) -- Though scientists argue that the emerging technology of spintronics may trump conventional electronics for building the next generation of faster, smaller, more efficient computers and high-tech ...
Apr 26, 2010 |
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Scientists discover world's smallest superconductor
Scientists have discovered the world's smallest superconductor, a sheet of four pairs of molecules less than one nanometer wide. The Ohio University-led study, published Sunday as an advance online publication ...
Mar 29, 2010 |
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New spintronics material could help usher in next generation of microelectronics
(PhysOrg.com) -- As the electronics industry works toward developing smaller and more compact devices, the need to create new types of scaled-down semiconductors that are more efficient and use less power has become essential.
Mar 23, 2010 |
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Novel material paves the way for next-generation information technology
(PhysOrg.com) -- University of Queensland researchers have successfully demonstrated a futuristic semiconductor technology that will pave the way for the next generation of electrical and information technology systems.
Mar 09, 2010 |
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Researchers demonstrate 100-watt-level mid-infrared lasers
Northwestern University researchers have achieved a breakthrough in quantum cascade laser output power, delivering 120 watts from a single device at room temperature.
Dec 01, 2009 |
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Researchers create all-electric spintronics
A multidisciplinary team of UC researchers is the first to find an innovative and novel way to control an electron's spin orientation using purely electrical means.
Oct 27, 2009 |
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The Spin Cycle: Nanoresearch could lead to next generation of transistors
(PhysOrg.com) -- For decades, the transistors inside radios, televisions and other everyday items have transmitted data by controlling the movement of the electron’s charge. Scientists now have discovered ...
Oct 20, 2009 |
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