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heat News
Lasers Alter Material Properties Without Producing Excess Heat
PASADENA, Calif., Dec. 13, 2021 — Researchers at Caltech have reported success using lasers to dramatically sculpt the properties of materials without the production of excess heat, which can damage the materials. “These tools could let you transform the electronic properties...
Optical Rectennas Show Aptitude in Waste Heat Capture
BOULDER, Colo., May 27, 2021 — Researchers from the University of Colorado Boulder have developed optical rectennas (short for “rectifying antennas”) capable of capturing excess heat and turning it into usable electricity. The optical rectennas are too small to see...
Optical Tech Improves Heat Transfer
LOS ANGELES, April 30, 2021 — Researchers from UCLA have demonstrated a class of optical materials that control how heat radiation is directed from an object. The advance could improve the efficiency of energy conversion systems and enable more effective sensing and detecting...
Atomic Lattice Excitation Yields Understanding of Quantum Dots’ Limits
MENLO PARK, Calif., March 29, 2021 — At low energy levels, quantum dots are able to absorb light and convert it to a different color at nearly 100% efficiency. At higher excitation energies required for brighter screens and other technologies, the level of efficiency drops...
Celestial light switch reveals lunar ranging data
May 5, 2014 — When certain members of the universe play a linear game of hide-and-seek, humans pay attention: Many don special solar glasses; others stay up late to catch sight of a burnt-orange moon. Solar and lunar eclipses are sights to behold, appearing just...
Dual-Catalyst Technique Allows Better Control of Molecules
MADISON, Wis., April 24, 2014 — Chemical reactions usually happen on their own terms. But now, researchers from the University of Wisconsin-Madison have discovered a way to create molecules with controlled chirality using sunlight as one of two catalysts.
Image Sensors Made for Extreme Temps
DUISBURG, Germany, Sept. 23, 2010 — Car manufacturers are increasingly equipping their vehicles with image sensors to register the presence of pedestrians or vehicles in the blind spot or to detect obstacles when parking. The sensors must be able to function in extremely high...
"Totally new physics" yields first germanium laser
BOSTON – It’s the very first germanium laser capable of emitting wavelengths useful for optical communications. It’s also the first operable at room temperature. And this new laser not only holds promise for optical computing but also proves that...
LEDs: Beyond High Brightness
Nov 1, 2009 — The US Department of Energy’s Energy Information Administration (EIA) reported in 2007 that the US had used roughly 526 billion kilowatt-hours of electricity for lighting (both commercial and residential). In 2008, the EIA reported that a typical...
Indium Buys NanoFoil Maker
CLINTON, N.Y., Sept. 23, 2009 – Materials supplier Indium Corp. announced it has acquired Reactive NanoTechnologies Inc. (RNT), a Hunt Valley, Md.-based maker of the electronics material NanoFoil. Terms of the deal were not disclosed.
Schott Solar Opens NM Plant
ALBUQUERQUE, N.M., May 12, 2009 -- The first facility in the world to produce both concentrated solar power receivers and photovoltaic modules was inaugurated with much fanfare Monday in Albuquerque. Schott Solar's flagship North American plant is also the first solar manufacturing...
Schott Solar to Build in NM
ROSEVILLE, Calif., Jan. 16, 2008 -- Schott Solar Inc., a subsidiary of international technology company Schott AG of Mainz, Germany, announced this week it will expand its US photovoltaic (PV) capabilities by building a $100 million solar energy technology production facility in...
Molecular Heat Flow Measured
CHAMPAIGN, Ill., Aug. 10, 2007 -- A thermal measurement technique has been developed that can explore heat transport in extended molecules fastened at one end to a metal surface by using ultrafast lasers. Heat flow is crucial in the field of molecular electronics, where long-chain...
Heat-Resistant 'Nanoglue' Creates Superstrong Bond
TROY, N.Y., May 16, 2007 -- By taking a nanolayer of a commercially available glue material and sandwiching it between a thin film of copper and silica, researchers have developed an inexpensive method of bonding materials that don't normally stick together and dramatically...
Nanosensor Promising for Space Research
DELFT, Netherlands, Jan. 19, 2007 -- By detecting the terahertz frequencies contained in cosmic radiation, a tiny but supersensitive sensor may help solve the mysteries of outer space, its creator said. Cosmic radiation offers astronomers important new information about the birth...
OU: Gold Nanoparticles Emit Intense Heat
Mar 31, 2006 — ATHENS, Ohio, March 31, 2006 -- Nanoparticles of gold can act as tiny, precise and powerful heaters, which potentially could be used in biomedical applications, according to a new study at Ohio University. When stimulated with the right frequency...
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April 2024
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