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Sharp's New Semiconductor Laser for Triple- and Quadruple- Layer Blu-ray Discs

Sharp's New Semiconductor Laser for Triple- and Quadruple- Layer Blu-ray Discs

Technology / Semiconductors

created Sep 18, 2009 | popularity 4.7 / 5 (11) | comments 5

(PhysOrg.com) -- Sharp Corporation has announced the development of a new 500 mW semiconductor laser for triple- and quadruple- layer Blu-ray discs.


The control tower of the Athens International airport is pictured through a window

Greek pilots see red from laser pen pranks

Technology / Other

created Aug 19, 2009 | popularity 3 / 5 (2) | comments 0

Greece's civil aviation pilots on Wednesday called for a crackdown on laser pen pranksters who have endangered a growing number of plane landings around the country.


Roadrunner supercomputer models nonlinear physics of high-power lasers

Physics / Plasma Physics

created Oct 28, 2009 | popularity 4 / 5 (4) | comments 1

For years scientists have struggled with the difficult physics of inertial confinement fusion. This is the attempt to compress a target capsule containing isotopes of hydrogen with high-powered lasers to high enough pressure ...


Laser accelerated protons to the highest energies so far

Researchers use trident laser to accelerate protons to record energies

Physics / General Physics

created Nov 02, 2009 | popularity 4.8 / 5 (8) | comments 10

An international team of physicists at Los Alamos National Laboratory has succeeded in using intense laser light to accelerate protons to energies never before achieved. Using this technique, scientists can ...


Powerful laser sheds light on fast ignition and high energy density physics

Powerful laser sheds light on fast ignition and high energy density physics

Physics / General Physics

created Nov 02, 2009 | popularity 3.8 / 5 (5) | comments 0

A new generation of high-energy (>kJ) petawatt (HEPW) lasers is being constructed worldwide to study high intensity laser matter interactions, including fast ignition. Fast ignition is a laser-based technique ...


Lasers put a shine on metals

Lasers put a shine on metals

Technology / Engineering

created Nov 03, 2009 | popularity 4.8 / 5 (8) | comments 2

(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 ...


Laser Fusion and Exawatt Lasers

Physics / Optics & Photonics

created Oct 01, 2009 | popularity 4 / 5 (17) | comments 10

(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 ...


Food 'Tattoos' an Alternative to Labels for Identifying Fruit

Food 'Tattoos' an Alternative to Labels for Identifying Fruit

Biology / Cell & Microbiology

created Aug 31, 2009 | popularity not rated yet | comments 2

(PhysOrg.com) -- Those small and sometimes inconvenient sticky labels on produce may eventually be replaced by laser "tattoo" technology now being tested by Agricultural Research Service (ARS) and University ...


Lasers generate underwater sound

Lasers generate underwater sound

Physics / General Physics

created Sep 04, 2009 | popularity 4.5 / 5 (8) | comments 6

Scientists at the Naval Research Laboratory (NRL) are developing a new technology for use in underwater acoustics. The new technology uses flashes of laser light to remotely create underwater sound. The new ...


Measuring distances in microseconds

Measuring distances in microseconds

Technology / Engineering

created Nov 05, 2009 | popularity 5 / 5 (1) | comments 0

(PhysOrg.com) -- Standard laser devices are fast enough for measuring the size of a room, but they need to be faster for outdoor mobile applications. Researchers have brought these scanners up to speed -- ...


Researchers identify better laser for treating facial spider veins

Medicine & Health / Research

created Oct 06, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Researchers from Boston University School of Medicine (BUSM) have concluded that the 940nm wavelength laser is superior for treating facial spider veins (telangiectasias) as compared to the 532nm wavelength ...


Researchers develop drug delivery system using nanoparticles and lasers

Researchers develop drug delivery system using nanoparticles and lasers

Nanotechnology / Bio & Medicine

created Sep 10, 2009 | popularity not rated yet | comments 1

Researchers at UC Santa Barbara have developed a new way to deliver drugs into cancer cells by exposing them briefly to a non-harmful laser. Their results are published in a recent article in ACS Nano, a jour ...


Building a more versatile laser

Building a more versatile laser

Physics / Optics & Photonics

created Nov 16, 2009 | popularity 4.5 / 5 (19) | comments 0

(PhysOrg.com) -- One of the drawbacks associated with using semiconductor lasers is that many of them can only produce a beam of a single wavelength, and can only send that beam in one direction at a time. ...


Research is shattering traditioinal notions of laser limits

Research is shattering traditioinal notions of laser limits

Physics / Optics & Photonics

created Dec 07, 2009 | popularity 5 / 5 (2) | comments 1

Air Force Office of Scientific Research and National Science Foundation-funded professor, Dr. Xiang Zhang has demonstrated at the University of California, Berkeley the world's smallest semiconductor laser, ...


Researchers demonstrate 100-watt-level mid-infrared lasers

Physics / Quantum Physics

created Dec 01, 2009 | popularity 4.7 / 5 (12) | comments 0

Northwestern University researchers have achieved a breakthrough in quantum cascade laser output power, delivering 120 watts from a single device at room temperature.