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Chemistry World May 2012 |
Sniffing out explosives Can science compete with the sensitivity of a sniffer dog's nose? Emma Davies finds out |
AboutSafety May 8, 2001 |
Laser Safety Guidelines for understanding the dangers of lasers and the importance of working with them safely... |
IEEE Spectrum May 2010 Neil Savage |
The Laser at 50 It's the golden anniversary of this fundamental technology |
Technology Research News May 4, 2005 |
Laser Sniffs Explosives Researchers have built a device that detects when molecules of the explosives TNT and DNT stick to a thin film of polymer, or plastic. |
IEEE Spectrum July 2007 Federici et al. |
T-Rays vs. Terrorists Terahertz radiation lets security screeners find bombs and weapons wherever they're hidden. |
Chemistry World September 21, 2011 Kate McAlpine |
Laser can detect explosive traces at a distance Researchers at the Massachusetts Institute of Technology, have developed a laser-based explosives detector that can spot 2,4,6-trinitrotoluene at concentrations of 1ng/cm 2, from 15cm away. |
Technology Research News December 1, 2004 Eric Smalley |
Pure Silicon Laser Debuts Researchers have made a prototype laser from silicon. The laser is tunable, meaning it can lase in a range of wavelengths, or colors, and it works at room temperature. |
Chemistry World August 13, 2014 Andy Extance |
Photon pinball identifies chemicals from afar US scientists have pushed the range at which chemicals can be remotely identified beyond a kilometer by turning the samples themselves into lasers. |
Technology Research News December 31, 2003 Eric Smalley |
Light frozen in place Researchers at Harvard University have trapped and held a light pulse still for a few hundredths of a millisecond. |
Scientific American April 18, 2005 Kauffmann & van den Bosch |
CT Scan for Molecules Producing 3-d images of electron orbitals. |
Industrial Physicist Aug/Sep 2003 Eric R. Mueller |
Terahertz radiation: applications and sources Today, with continuous-wave (CW) and pulsed sources readily available, investigators are pursuing potential terahertz-wavelength applications in many fields. |
Chemistry World October 12, 2006 Richard Van Noorden |
Lasers on the Energy Ski Slope Researchers have shown that intense laser-light pulses can act as catalysts, controlling the end products of a chemical reaction without themselves being absorbed. |
IEEE Spectrum October 2005 Paniccia & Koehl |
The Silicon Solution In the future, ordinary silicon chips will move data using light rather than electrons, unleashing nearly limitless bandwidth and revolutionizing computing |
Chemistry World July 28, 2010 Andy Extance |
Molecular interference reveals reactions Scientists can now see atoms reacting on the femtosecond timescale in unprecedented detail, thanks to a laser technique developed at the University of Ottawa. |
Chemistry World July 27, 2006 Tom Westgate |
Lasers Make Erbium a Cool Customer A material that gets colder when hit with a laser beam may sound odd, but scientists have found that adding a dash of the metal erbium to certain compounds can turn them into miniature refrigerators. |
IEEE Spectrum November 2006 Monte Ross |
The New Search for E.T. If extraterrestrials are trying to communicate with us, they're probably using lasers, not radio waves. |
Industrial Physicist Feb/Mar 2004 Jennifer Ouellette |
Time-resolved spectroscopy comes of age It is possible to learn a lot about a sample by exciting it with a pulsed laser and using a very fast detector to measure the resulting emissions and decay as a function of time. Ultrafast lasers and pulse-shaping techniques have helped open up new applications. |
Military & Aerospace Electronics October 2005 John McHale |
Chasing the goal of an efficient battlefield laser U.S. DoD researchers aim to develop small lasers for use in tactical air missions. The engineering challenge has been taken up by contractors including Northrop Grumman and Lockheed Martin. |
Technology Research News September 24, 2003 Eric Smalley |
Laser made from single atom The simplest possible laser -- a single atom -- has been on the drawing board for decades. Researchers have finally achieved the extremely precise control needed to make a laser from just one atom. The first demonstration of a single-atom laser showed that it's a different animal -- it produces quantum light. |
IEEE Spectrum May 2010 Jordin Kare |
Backyard Star Wars Build your own photonic fence to zap mosquitoes midflight |
Popular Mechanics October 30, 2009 Jeremy Jacquot |
7 Saber-Dueling, Phaser-Blasting Hollywood Laser Myths These sci-fi scenes may look cool on film, but real science tells a different story. |
IEEE Spectrum February 2006 Holonyak & Feng |
The Transistor Laser Ultrafast transistors that output optical and electrical signals open a new computing frontier. |
Chemistry World October 2, 2014 Tim Wogan |
Photosynthesis-free route to oxygen gives early Earth atmosphere clues A direct mechanism for producing oxygen from carbon dioxide using far ultraviolet radiation has been experimentally demonstrated by researchers in the US, confirming a 14-year-old theoretical prediction. |
IEEE Spectrum October 2005 Salvatore Coffa |
Light From Silicon For decades, silicon was a semiconducting dim bulb, but now we can make it into LEDs that match the best made from more exotic materials |
IEEE Spectrum October 2010 Sandra Upson |
Laser Uranium Enrichment Makes a Comeback The controversial technology poses proliferation risks, but nuclear firms press on |
Technology Research News September 24, 2003 |
Teamed lasers make smaller spots Researchers from Boston University have tapped the properties of polarization in order to focus a laser beam more tightly in space. The method could be used to scan objects in finer detail and to make finer features in processes like rapid prototyping and photolithography. |
Chemistry World January 16, 2012 Kate McAlpine |
Stripped down spectroscopy to probe single molecules Spectroscopy, a key method of identifying atoms and molecules with light, has been taken to its most fundamental level - a single photon absorbed by a single molecule. |
Technology Research News January 26, 2005 |
Plastic Records Infrared Light Researchers have extended the sensitivity of photorefractive polymers so that they can be used at the common infrared communications frequency of 1550 nanometers. |
Military & Aerospace Electronics July 2004 John Keller |
Adaptive Optics Blends the Best of Electronic and Optoelectronic Technologies This approach uses deformable mirrors, MEMS, or liquid-crystal technologies to adjust for optical distortion in the atmosphere, which yields a new level of focus and resolution to high-energy lasers, deep-space exploration, and perhaps even eye surgery. |
Chemistry World October 13, 2011 Phillip Broadwith |
Following Electrons' Chemical Reaction Quickstep The oscillating electronic states of molecules nearby and passing through a conical intersection can now be probed directly. |
Chemistry World September 20, 2013 James Urquhart |
Microscopy and spectroscopy combined US researchers have developed a new imaging technique which combines the spatial resolution of scanning tunneling microscopy with vibrational information obtained from infrared spectroscopy. |
IEEE Spectrum June 2008 Saswato R. Das |
Tabletop EUV Light Source South Korean research team demonstrates an economical way to generate EUV light using femtosecond laser pulses. |
Industrial Physicist Eric Lerner |
Briefs Penetrating the fog... Plasma self-organization... Stronger than spider silk... Slow light... etc. |
IEEE Spectrum March 2010 Richard Stevenson |
Lasers Get the Green Light Compact green-light sources could slash the cost of laser TV |
Military & Aerospace Electronics March 2008 Turner & Ettenberg |
Shortwave Infrared Laser Detection and Tracking on the Battlefield As warfare modernizes, improved pointing and targeting while remaining covert to the enemy from far away is critical to ensuring success. New shortwave infrared (SWIR) technology is helping to meet these critical goals. |
Chemistry World June 9, 2010 Jon Cartwright |
Laser tracks electrons in molecules The breakthrough suggests that attosecond lasers will soon enable scientists to address problems in chemistry and biology, which until now were too complex for attosecond science. |
Chemistry World October 3, 2014 Simon Hadlington |
Nanoscale microphone based on a single molecule Researchers in the Netherlands have created the world's tiniest microphone, in which the acoustic detector is a single molecule. |
Chemistry World December 2, 2014 Andrea Sella |
Maiman's laser Theodore Maiman (1927 -- 2007) was an American engineer who invented the first laser |
Military & Aerospace Electronics February 2005 Adrian Carter |
New technology advances applications for high-power fiber lasers Since introduced by Nufern as a standard product in late 2002, LMA fibers have enabled a power-scaling revolution, and have produced near-diffraction-limited beam quality at powers approaching 1 kW and slope efficiencies of around 75 percent. |
Military & Aerospace Electronics August 2004 John McHale |
The Airborne Laser: It's Huge, it Flies, and it Blows up Missles The world's largest directed-energy weapon, the U.S. Defense Department's Airborne Laser, employs hundreds of complicated optics and several lasers to track down and destroy incoming missiles, and it is expected to be deployed by the end of the decade. |
Industrial Physicist Feb/Mar 2004 Eric J. Lerner |
Briefs Opening the x-ray water window... Zero thermal expansion... Magnetoresistor computing... A pressure-driven battery |
Military & Aerospace Electronics January 2005 |
Products Direct flash lamp pumped die laser... Military- and space-qualified laser diodes... Near-infrared diode laser... etc. |
Technology Research News June 1, 2005 |
Lasers Built Into Fiber-Optics Researchers have crossed a gas-filled fiber optic laser with ordinary fiber optics to make a Raman laser and a frequency stabilizer -- devices that provide precise control of laser beams. |
Chemistry World June 23, 2015 Matthew Gunther |
Photo-catalysts shine light on chemical bond making A team of scientists from Israel and Germany have manipulated bond formation in a chemical reaction using high power lasers |
Chemistry World January 31, 2014 Philip Ball |
X-rays set to reveal electrons' dance In principle the very intense, ultra-short x-ray pulses produced by free-electron laser sources will be capable of revealing the motions of electrons in real time as they hop between different energy states in atoms and molecules. |
Chemistry World June 23, 2015 Philip Ball |
Ultra-bright x-rays film molecular reaction A team working at the Stanford Linear Collider in California claims to have made 'the first molecular movie' using ultra-fast x-ray scattering from molecules as they undergo a chemical reaction. |
Chemistry World August 23, 2006 Simon Hadlington |
Laser Light Cast on Quantum Evolution Researchers have demonstrated for the first time why a technique called coherent control is able to break molecular bonds selectively using finely-tuned pulses of laser light. |
Technology Research News October 17, 2005 |
Data storage technologies Today's magnetic disk drives could be improved by incorporating much larger magnetoresistance or replaced by microelectromechanical systems (MEMS), near-field optics, holographic systems, or even molecules for better data storage solutions. |
Industrial Physicist Aug/Sep 2003 Eric J. Lerner |
Briefs A magnetic microscope for the brain... Spin and energy -- free?... Finest nanowire arrays... Solar-cell burnout... etc. |
Technology Research News June 2, 2004 Eric Smalley |
Atom-Photon Link Demoed Getting atoms and photons to exchange information is crucial for many quantum computer designs. The first verified atom-photon entanglement shows that it's not so hard to do, as long as you can accept a low success rate. |