http://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. (Phys.org)—The National Institute of Standards and Technology (NIST) has demonstrated a novel chip-scale instrument made of carbon nanotubes that may simplify absolute measurements of laser power, especially the light signals transmitted by optical fibers in telecommunications networks. http://phys.org/news278327460.html Nanotechnology Fri, 25 Jan 2013 09:11:11 EST news278327460 (Phys.org) -- “If you made a long distance phone call or sent an email today, or if you’re wearing clothes, then you are benefiting directly from our laser services,” says Marla Dowell, leader of PML’s Sources and Detectors Group, the nation’s keeper of a family of standards that now permit laser calibrations at power levels from nanowatts to hundreds of kilowatts and energy levels from femtojoules to megajoules. http://phys.org/news258629388.html Physics Mon, 11 Jun 2012 10:29:57 EST news258629388 (PhysOrg.com) -- U.S. Naval Research Laboratory researchers Dr. Sean J. Hart, Dr. Colin G. Hebert and Mr. Alex Terray have developed a laser-based analysis method that can detect optical pressure differences between populations or classes of blood cells that does not rely on prior knowledge, antibodies, or fluorescent labels for discrimination. http://phys.org/news237633959.html Chemistry Wed, 12 Oct 2011 10:26:05 EST news237633959 Surface welding instead of penetration welding, allows a laser to produce a weld that is only visible on one side. But how do you control the laser power to prevent it burning a hole through the sheets of metal? A new camera system analyzes thermal images in real time – and ensures a perfect weld. http://phys.org/news224323754.html Technology Wed, 11 May 2011 09:09:50 EST news224323754 For many practical applications involving lasers, it's important to be able to control the direction of the laser beams. Just ask Han Solo, or the captain of the Death Star. Researchers from North Carolina State University have come up with a very energy-efficient way of steering laser beams that is precise and relatively inexpensive. http://phys.org/news223552565.html Physics Mon, 02 May 2011 10:56:23 EST news223552565 Laser uses relativistic effects to turn otherwise opaque plasma transparent, creating an ultra-fast optical switch useful in next-generation particle accelerators. http://phys.org/news208417052.html Physics Mon, 08 Nov 2010 05:37:43 EST news208417052 (PhysOrg.com) -- Seattle research and development company LaserMotive has succeeded in keeping a model helicopter hovering for six hours, powered only by the energy of a laser. http://phys.org/news203231075.html Technology Thu, 09 Sep 2010 08:00:01 EST news203231075 Harnessing darkness for practical use, researchers at the National Institute of Standards and Technology have developed a laser power detector coated with the world's darkest material -- a forest of carbon nanotubes that reflects almost no light across the visible and part of the infrared spectrum. http://phys.org/news201358489.html Nanotechnology Wed, 18 Aug 2010 13:55:47 EST news201358489 Fujitsu and the University of Tokyo today announced the world's first quantum dot laser -based 25 Gbps high-speed data transmission. http://phys.org/news193598597.html Physics Thu, 20 May 2010 18:50:01 EST news193598597 Lasers can now generate light pulses down to 100 attoseconds thereby enabling real-time measurements on ultrashort time scales that are inaccessible by any other methods. Scientist at the Max Born Institute for Nonlinear Optics and Short Time Spectroscopy (MBI) in Berlin, Germany have now demonstrated timing control with a residual uncertainty of 12 attoseconds. This constitutes a new world record for the shortest controllable time scale. http://phys.org/news192909576.html Physics Wed, 12 May 2010 18:59:49 EST news192909576 (PhysOrg.com) -- In the recent past, producing lasers with terawatt (a trillion watts) beams was impressive. Now petawatt (a thousand trillion watts, or 10^15 watts) lasers are the forefront of laser research. Some labs are even undertaking work toward achieving exawatt (10^18 watts) levels. http://phys.org/news173638318.html Physics Thu, 01 Oct 2009 17:52:26 EST news173638318 (PhysOrg.com) -- The U.S. military can now calibrate high-power laser systems, such as those intended to defuse unexploded mines, more quickly and easily thanks to a novel nanotube-coated power measurement device developed at the National Institute of Standards and Technology. http://phys.org/news160839024.html Nanotechnology Wed, 06 May 2009 14:31:41 EST news160839024