News tagged with optical laser
Diamonds are a laser's best friend
(PhysOrg.com) -- Tomorrow's lasers may come with a bit of bling, thanks to a new technology that uses man-made diamonds to enhance the power and capabilities of lasers. Researchers in Australia have now demonstrated the first ...
Sep 18, 2009 |
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Sharp's New Semiconductor Laser for Triple- and Quadruple- Layer Blu-ray Discs
(PhysOrg.com) -- Sharp Corporation has announced the development of a new 500 mW semiconductor laser for triple- and quadruple- layer Blu-ray discs.
Sep 18, 2009 |
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Laser pulses control single electrons in complex molecules
Predatory fish are well aware of the problem: In a swarm of small fish it is hard to isolate prey. A similar situation can be found in the microcosm of atoms and molecules, whose behavior is influenced by "swarms" of electrons. ...
Sep 01, 2009 |
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World's smallest semiconductor laser heralds new era in optical science
(PhysOrg.com) -- Researchers at the University of California, Berkeley, have reached a new milestone in laser physics by creating the world's smallest semiconductor laser, capable of generating visible light ...
Aug 30, 2009 |
4.8 / 5 (25) |
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Up-scale: Frequency converter enables ultra-high sensitivity infrared spectrometry
In what may prove to be a major development for scientists in fields ranging from forensics to quantum communications, researchers at the National Institute of Standards and Technology have developed a new, ...
Aug 26, 2009 |
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Open wide and say 'zap'
A group of researchers in Australia and Taiwan has developed a new way to analyze the health of human teeth using lasers. As described in the latest issue of Optics Express,, by measuring how the surface of a tooth respon ...
Aug 18, 2009 |
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New nanolaser -- spaser -- key to future optical computers and technologies
(PhysOrg.com) -- Because the new device, called a "spaser," is the first of its kind to emit visible light, it represents a critical component for possible future technologies based on "nanophotonic" circuitry, ...
Aug 16, 2009 |
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Ytterbium gains ground in quest for next-generation atomic clocks
An experimental atomic clock based on ytterbium atoms is about four times more accurate than it was several years ago, giving it a precision comparable to that of the NIST-F1 cesium fountain clock, the nation's ...
Aug 11, 2009 |
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Breaking barriers with nanoscale lasers
(PhysOrg.com) -- We could soon see the potential of laser technology expand dramatically.
Jul 28, 2009 |
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Physicists find way to explore microscopic systems through holographic video
Physicists at New York University have developed a technique to record three-dimensional movies of microscopic systems, such as biological molecules, through holographic video. The work, which is reported in Optics Express, has po ...
Jul 20, 2009 |
4.3 / 5 (3) |
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Study gives clues to increasing X-rays' power
Three-dimensional, real-time X-ray images of patients could be closer to reality because of research recently completed by scientists at the University of Nebraska-Lincoln and a pair of Russian institutes.
Jun 16, 2009 |
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Nanoparticle Scattering Improves Laser Performance
(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 ...
Nanotechnology / Nanomaterials
Jun 04, 2009 |
4.7 / 5 (3) |
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Bouncing atoms may be the key to the future of gravimetry
(PhysOrg.com) -- When studying cold atoms, scientists often use magnetic or optical traps to keep the atoms in place. However, in some cases experimentalists want to study free atoms, avoiding the effects of a trap. "One ...
Apr 27, 2009 |
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Making waves in the brain: Researchers use lasers to induce gamma brain waves in mice
Scientists have studied high-frequency brain waves, known as gamma oscillations, for more than 50 years, believing them crucial to consciousness, attention, learning and memory. Now, for the first time, MIT researchers and ...
Medicine & Health / Neuroscience
Apr 26, 2009 |
5 / 5 (5) |
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New Research Promises Better Atomic Clocks
(PhysOrg.com) -- The most accurate timekeepers in the world are atomic clocks, which tell time based on the absorption of a very specific and unchanging microwave frequency, which induces electrons in an atom to “jump” from ...
Apr 22, 2009 |
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