News tagged with laser output
Researchers demonstrate 100-watt-level mid-infrared lasers
Dec 01, 2009 |
4.7 / 5 (12) |
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Northwestern University researchers have achieved a breakthrough in quantum cascade laser output power, delivering 120 watts from a single device at room temperature.
Lasers put a shine on metals
Nov 03, 2009 |
4.8 / 5 (8) |
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(PhysOrg.com) -- Polishing metal surfaces is a demanding but monotonous task, and it is difficult to find qualified young specialists. Polishing machines do not represent an adequate alternative because they ...
Sharp's New Semiconductor Laser for Triple- and Quadruple- Layer Blu-ray Discs
Sep 18, 2009 |
4.7 / 5 (11) |
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(PhysOrg.com) -- Sharp Corporation has announced the development of a new 500 mW semiconductor laser for triple- and quadruple- layer Blu-ray discs.
Nanoparticle Scattering Improves Laser Performance
Nanotechnology / Nanomaterials
Jun 04, 2009 |
4.7 / 5 (3) |
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(PhysOrg.com) -- “Light scattering” and “optical performance” are two concepts that usually head in opposite directions, but they have recently been shown to walk happily hand-in-hand. The results are impressive ...
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Hot Electrons Could Double Solar Cell Power Efficiency
20 hours ago |
4.8 / 5 (8) |
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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 ...
Physicists detect two candidate dark matter interactions, but say the data are not conclusive
20 hours ago |
4.1 / 5 (14) |
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(PhysOrg.com) -- Scientists have spent decades searching for the elusive material known as dark matter, which is believed to make up 25 percent of the universe. On Thursday, Dec. 17, a team of physicists including ...
Disparity in use of implantable devices to prevent sudden death in heart failure patients
21 hours ago |
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A study of heart failure patients who meet national guidelines for devices that stabilize and strengthen the heart's electrical system found that only half of eligible patients received the devices. The study, which is the ...
Tiny whispering gallery: Sensor can detect a single nanoparticle and take its measurement
21 hours ago |
4.7 / 5 (13) |
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Nanotechnology has already made it to the shelves of your local pharmacy and grocery: nanoparticles are found in anti-odor socks, makeup, makeup remover, sunscreen, anti-graffiti paint, home pregnancy tests, ...
Physicists see through the opaque with 'T-rays'
23 hours ago |
4.1 / 5 (9) |
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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 ...
Bioactive glass nanofibers produced
Nanotechnology / Nanomaterials
23 hours ago |
3.8 / 5 (5) |
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A team of researchers from the University of Vigo, Rutgers University in the United States and Imperial College London, in the United Kingdom, has developed "laser spinning", a novel method of producing glass ...
Researcher studies the universe through quantum electrodynamics
Dec 17, 2009 |
3.7 / 5 (6) |
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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.
Science's breakthrough of the year: Uncovering 'Ardi'
Dec 17, 2009 |
2.3 / 5 (3) |
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The research that brought to light the fossils of Ardipithecus ramidus, a hominid species that lived 4.4 million years ago in what is now Ethiopia, has topped Science's list of this year's most significant s ...
Within a cell, actin keeps things moving
Dec 17, 2009 |
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(PhysOrg.com) -- Using new technology developed in his University of Oregon lab, chemist Andrew H. Marcus and his doctoral student Eric N. Senning have captured what they describe as well-orchestrated, actin-driven, ...
China rapidly catching up in research impact
Dec 17, 2009 |
5 / 5 (2) |
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Data from a recent Thomson Reuters study show that Chinese research output has increased from just over 20,000 papers in 1998 to nearly 112,000 in 2008.
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