News tagged with frequency comb

Long-distance quantum communication gets closer as physicists increase light storage efficiency by an order of magnitude

(PhysOrg.com) -- In a new demonstration of reversible light storage, physicists have achieved storage efficiencies of more than a magnitude greater than those offered by previous techniques. The new method could be useful ...

Physics / Quantum Physics

created Mar 01, 2010 | popularity 4.2 / 5 (25) | comments 10 | with audio podcast feature

Physicists create first 'frequency comb' to probe ultraviolet wavelengths

Physicists at JILA have created the first "frequency comb" in the extreme ultraviolet band of the spectrum, high-energy light less than 100 nanometers (nm) in wavelength. Laser-generated frequency combs are the most accurate ...

Physics / General Physics

created Feb 01, 2012 | popularity 5 / 5 (6) | comments 4 | with audio podcast

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

(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. ...

Physics / General Physics

created Oct 29, 2009 | popularity 4.9 / 5 (18) | comments 0

Research team uses a laser frequency comb to calibrate spectrographs

(Phys.org) -- In the never ending quest to find out if there is life out there beyond our own planet, astronomers, astrophysicists and other researchers use all manner of tools to scan the sky looking for ...

Space & Earth / Astronomy

created 6 hours ago | popularity not rated yet | comments 0 | with audio podcast report

Team generates frequency comb with more than 100 terahertz bandwidth

Many of the communication tools of today rely on the function of light or, more specifically, on applying information to a light wave. Up until now, studies on electronic and optical devices with materials that are the foundations ...

Physics / Optics & Photonics

created Mar 07, 2012 | popularity 5 / 5 (3) | comments 1 | with audio podcast

Future 'comb on a chip': NIST's compact frequency comb could go places

Laser frequency combs -- extraordinarily precise tools for measuring frequencies (or colors) of light -- have helped propel advances in timekeeping, trace gas detection and related physics research to new ...

Physics / General Physics

created Oct 26, 2011 | popularity 5 / 5 (2) | comments 1 | with audio podcast

An octave spanning chip-based optical ruler

More than a decade ago, the frequency comb technique was developed at the Max Planck In-stitute of Quantum Optics by Professor Theodor W. Hänsch. The new tool has stimulated fun-damental research as well ...

Physics / General Physics

created Aug 08, 2011 | popularity 4.7 / 5 (3) | comments 1 | with audio podcast

JILA frequency comb system detects gas impurities to aid semiconductor manufacturing

Purity of ingredients is a constant concern for the semiconductor industry, because a mere trace of contaminants can damage or ruin tiny devices. In a step toward solving a long-standing problem in semiconductor manufacturing, ...

Physics / General Physics

created Aug 04, 2010 | popularity 5 / 5 (3) | comments 0 | with audio podcast

'Star Comb' joins quest for Earthlike planets

(PhysOrg.com) -- If there is life on other planets, a laser frequency comb developed at the National Institute of Standards and Technology (NIST) may help find it.

Physics / Optics & Photonics

created Mar 07, 2012 | popularity not rated yet | comments 0

Creating the astro-comb to locate Earth-like planets

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 ...

Physics / General Physics

created May 07, 2009 | popularity 3.6 / 5 (7) | comments 0