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Free-electron laser shines at over 14 kilowatts in the infrared
11-08-2006 · EurekAlert!The world's most powerful tunable laser broke another power record, reaching 14.2 kWs.
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Keywords: free-electron, laser, shines, kilowatts, infrared, free, electron, shine, kilowatt
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- Highest Energies Yet From Laser Wakefield Acceleration: From Zero To A Billion Electron Volts ...
10-05-2006 · ScienceDaily
In a precedent-shattering demonstration of the potential of laser wakefield acceleration, scientists at the Department of Energy's Lawrence Berkeley National Laboratory, working with colleagues at the University of Oxford, have accelerated electron beams to energies exceeding a billion electron volts (1 GeV) in a distance of just 3.3 centimeters. Billion-electron-volt beams from laser wakefield accelerators open the way to very compact high-energy experiments and superbright free-electron lasers.
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- Free from the atmosphere
06-13-2007 · EurekAlert!
An artificial, laser-fed star now shines regularly over the sky of ESO's VLT. This system provides assistance for the adaptive optics instruments on the VLT and so allows astronomers to obtain images free from the blurring effect of the atmosphere, regardless of the brightness and the location on the sky of the observed target. The system has now delivered its first scientific results, which prove to be unique.
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- Researchers Observe Superradiance in a Free Electron Laser
01-19-2007 · Brookhaven National Laboratory
BNL researchers have generated extremely short light pulses using a new technique that could be used in the next generation of light source facilities around the world to catch molecules and atoms in action. The team's findings describe the use of a laser to control the pulse duration of light from a free electron laser.
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- Brookhaven Lab Physicist Ilan Ben-Zvi Wins Free Electron Laser Prize
09-27-2007 · Brookhaven National Laboratory
Brookhaven physicist Ilan Ben-Zvi has won the 2007 Free Electron Laser (FEL) Prize along with James Rosenzweig of the University of California-Los Angeles. Sponsored by the International Free Electron Laser Conference, the prize consists of an award citation, a plaque, and approximately $2,500 for each recipient.
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- Scientists get first look at nanotubes inside living animals
09-24-2007 · EurekAlert!
Rice University scientists have captured the first optical images of carbon nanotubes inside a living organism. The research appears in the September issue of Nano Letters. The researchers fed carbon nanotubes to newly hatched fruit flies. Using a laser, they excited a fluorescent glow from the nanotubes and took pictures of the near-infrared glow with a custom microscope. The researchers hope the technique will be useful in finding new ways to diagnose disease.
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- Scientists demonstrate high-performing room-temperature nanolaser
06-20-2007 · EurekAlert!
Scientists at Yokohama National University in Japan have built a highly efficient room-temperature nanometer-scale laser that produces stable, continuous streams of near-infrared laser light.
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- Surgery without stitches
12-20-2007 · EurekAlert!
A thin polymer bio-film that seals surgical wounds could make sutures a relic of medical history. Measuring just 50 microns, the film is placed on a surgical wound and exposed to an infrared laser, which heats the film just enough to meld it and the tissue, thus perfectly sealing the wound. Known as Surgilux, the device's raw material is extracted from crab shells and has Food and Drug Administration approval in the US.
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- Lasers Shine Light on Chemical Reactions
11-22-2006 · Brookhaven National Laboratory
Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have been using a high-resolution laser technique to learn how molecules absorb light and fall apart during photodissociation reactions - chemical decomposition reactions triggered by light. Studying the atomic-level details of such reactions allows scientists to test and refine theories of chemical reactions, and may help them in their quest to use light to control reaction outcomes.
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- New sensor detects gaseous chemical weapon surrogates in 45 seconds
03-19-2007 · EurekAlert!
Using lasers and tuning forks, Pacific Northwest National Laboratory scientists have developed a chemical weapon agent sensing technique that promises to meet or exceed current and emerging defense and homeland security chemical detection requirements. The technique, called Quartz Laser Photo-Acoustic Sensing, or "QPAS," is now ready for prototyping and field testing. PNNL has demonstrated QPAS's ability to detect gaseous nerve agent surrogates. The instrument is based on Laser Photo-Acoustic Sensing and infrared Quantum Cascade Lasers.
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- Where stars are born
02-16-2008 · Science News Online
Some 300 young stars, hidden in visible light, shine through the dust in a new infrared portrait of the main cloud of a nearby star-forming region called Rho Ophiuchi.
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