News tagged with frequency comb

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Scientists build first 'frequency comb' to display visible 'teeth'

Scientists Build First 'Frequency Comb' To Display Visible 'Teeth'

Physics / General Physics

created Oct 29, 2009 | popularity 4.9 / 5 (15) | comments 0

(PhysOrg.com) -- Finally, an optical frequency comb that visibly lives up to its name. Scientists at the University of Konstanz in Germany and the National Institute of Standards and Technology in the U.S. ...


Creating the astro-comb to locate Earth-like planets

Physics / General Physics

created May 07, 2009 | popularity 3.3 / 5 (6) | comments 0

Researchers at the Harvard-Smithsonian Center for Astrophysics in Cambridge, Mass. have created an "astro-comb" to help astronomers detect lighter planets, more like Earth, around distant stars. The Harvard group will present ...


Spectral Analysis of Starlight

An accurate speedometer for astronomy

Physics / General Physics

created Sep 09, 2008 | popularity 4.8 / 5 (18) | comments 2

Events on a cosmic scale are often barely discernable on Earth. This explains why astronomers are currently not able to prove directly that the universe is expanding at an ever increasing rate, nor can they ...


A Laser Comb for Astronomy

A fine-tooth comb to measure the accelerating universe

Physics / General Physics

created Sep 04, 2008 | popularity 4.7 / 5 (20) | comments 0

Astronomical instruments needed to answer crucial questions, such as the search for Earth-like planets or the way the Universe expands, have come a step closer with the first demonstration at the telescope ...





Search results for frequency comb


'Tunable' network features coordinated frequency combs

Physics / General Physics

created May 11, 2007 | popularity 4.5 / 5 (8) | comments 0

A super stable fiber-optic network that can be tuned across a range of visible and near-infrared frequencies while synchronizing the oscillations of light waves from different sources has been demonstrated at the National ...


Purdue 'milestone' a step toward advanced sensors, communications

Purdue 'milestone' a step toward advanced sensors, communications

Physics / General Physics

created Aug 01, 2007 | popularity 4.6 / 5 (16) | comments 0

Engineers at Purdue University have shown how to finely control the spectral properties of ultrafast light pulses, a step toward creating advanced sensors, more powerful communications technologies and more ...


Record-setting Laser May Aid Searches for Earthlike Planets

Record-setting Laser May Aid Searches for Earthlike Planets

Physics / General Physics

created May 05, 2008 | popularity 4.6 / 5 (45) | comments 2

Scientists at the University of Konstanz in Germany and the National Institute of Standards and Technology (NIST) have demonstrated an ultrafast laser that offers a record combination of high speed, short ...


Atomic fountain clocks are becoming still more stable

Physics / General Physics

created Mar 18, 2009 | popularity 4 / 5 (1) | comments 1

They are at present the most accurate clocks in the world: Caesium fountain clocks furnish the second accurate to 15 places after the decimal point. Until they reach this accuracy, caesium fountain clocks, however, need a ...


Technique reveals colors and intensity of all lightwaves simultaneously

Technique reveals colors and intensity of all lightwaves simultaneously

Physics / General Physics

created Feb 07, 2007 | popularity 4.1 / 5 (17) | comments 0

Physicists at the Commerce Department's National Institute of Standards and Technology have taken the first ever two-dimensional pictures of a "frequency comb," providing extra information that enhances the ...


Enhanced LIDAR improves range, vibration measures

Enhanced LIDAR improves range, vibration measures

Physics /

created Feb 02, 2006 | popularity 4.5 / 5 (8) | comments 0

Scientists at the National Institute of Standards and Technology have demonstrated the use of an ultrafast laser "frequency comb" system for improved remote measurements of distance and vibration. The technology, ...


LIDAR system offers peerless precision in remote measurements

Physics / Optics & Photonics

created May 24, 2009 | popularity 5 / 5 (8) | comments 1

By combining the best of two different distance measurement approaches with a super-accurate technology called an optical frequency comb, researchers at the National Institute of Standards and Technology have built a laser ...


Breath Analysis for Disease Detection

Laser light may be able to detect diseases on the breath

Physics / General Physics

created Feb 18, 2008 | popularity 4.5 / 5 (25) | comments 0

By blasting a person's breath with laser light, scientists from the National Institute of Standards and Technology and the University of Colorado at Boulder have shown that they can detect molecules that may ...


Physicist proposes to use femtosecond, chirped laser pulse trains to reduce decoherence

Physics / General Physics

created Nov 10, 2008 | popularity 4.1 / 5 (15) | comments 0

In a recent publication in the high impact journal Optics Letters, Svetlana Malinovskaya, Associate Professor of Physics at Stevens Institute of Technology, proposes to use femtosecond, chirped laser pulse trains to reduce ...


Atomic clock signals may be best shared by fiber-optics

Physics / General Physics

created Mar 02, 2007 | popularity 4 / 5 (1) | comments 0

Time and frequency information can be transferred between laboratories or to other users in several ways, often using the Global Positioning System (GPS). But today's best atomic clocks are so accurate—neither gaining nor ...



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