News tagged with light spectroscopy

Cosmic calculations: Advance will help astrophysicists explore where stars are born

A University of Delaware-led research team reports an advance in the June 1 issue of Science that may help astrophysicists more accurately analyze the vast molecular clouds of gas and dust where stars are bo ...

Space & Earth / Astronomy

created 21 hours ago | popularity 5 / 5 (3) | comments 1 | with audio podcast

A new generation of acoustic measurements

NPL scientists have made the first measurements of airborne acoustic free-field pressures using a laser technique based on photon correlation spectroscopy.

Physics / General Physics

created May 29, 2012 | popularity not rated yet | comments 0

How nitric acid overcame its fear of water with a little help from its friends

Whether it is a pond or raindrop, when a common nitrogen-containing acid encounters water's surface, it typically falls apart, dissociating into two charged particles. Except, sometimes it is able to hold ...

Chemistry / Materials Science

created Mar 14, 2012 | popularity not rated yet | comments 0 | with audio podcast

LAMIS -- a green chemistry alternative for laser spectroscopy

At some point this year, after NASA's rover Curiosity has landed on Mars, a laser will fire a beam of infrared light at a rock or soil sample. This will "ablate" or vaporize a microgram-sized piece of the ...

Space & Earth / Space Exploration

created Mar 01, 2012 | popularity 3 / 5 (1) | comments 2 | with audio podcast

Researchers at SLAC test collider closer to creating fully coherent X-rays

(PhysOrg.com) -- Many advanced laser technologies, such as laser spectroscopy, that use precise wavelengths of infrared, visible or ultraviolet laser light could benefit from using X-ray light as well. But ...

Physics / General Physics

created Feb 01, 2012 | popularity 5 / 5 (3) | comments 0 | with audio podcast

Measuring the next generation of life-saving pollution sensors

New research from the UK's National Physical Laboratory (NPL) is helping Duvas Technologies Ltd (Duvas) to develop improved air quality monitoring instrumentation. Currently over 1bn people a year suffer from respiratory ...

Technology / Engineering

created May 31, 2011 | popularity not rated yet | comments 0

UV-transparent coating for image sensors

Image sensors as used in cell phones are partially color-blind. This is because of their coating, which prevents UV light from passing through. CMOS chips have as a result not been suitable for spectroscopy ...

Technology / Engineering

created Feb 08, 2011 | popularity not rated yet | comments 0

Securing the nation with fingerprinting materials

Lawrence Livermore National Laboratory researchers may have found a way to improve Raman spectroscopy as a tool for identifying substances in extremely low concentrations. Potential applications for Raman ...

Nanotechnology / Nanophysics

created Nov 09, 2010 | popularity 4.3 / 5 (3) | comments 0 | with audio podcast

New research divines structure for class of proteins

(PhysOrg.com) -- Most proteins are shapely, but about one-third of them lack a definitive form, at least that scientists can readily observe. These intrinsically disordered proteins (IDPs) perform a host of ...

Biology / Cell & Microbiology

created Sep 21, 2010 | popularity 5 / 5 (1) | comments 0 | with audio podcast

'Slow light' on a chip holds promise for optical communications

A tiny optical device built into a silicon chip has achieved the slowest light propagation on a chip to date, reducing the speed of light by a factor of 1,200 in a study reported in Nature Photonics (published online Septem ...

Physics / Optics & Photonics

created Sep 05, 2010 | popularity 4.7 / 5 (16) | comments 1 | with audio podcast

New device for patients to monitor blood glucose levels

People with type 1 diabetes must keep a careful eye on their blood glucose levels: Too much sugar can damage organs, while too little deprives the body of necessary fuel. Most patients must prick their fingers ...

Medicine & Health / Diseases, Conditions, Syndromes

created Aug 09, 2010 | popularity 4.7 / 5 (3) | comments 0

Using 'dark channel' fluorescence, scientists explain how biochemical substances carry out their function

Spectroscopic techniques are among the most important methods by which scientists can look inside materials. They exploit the interaction of light waves with a given sample.

Chemistry / Analytical Chemistry

created Aug 08, 2010 | popularity 5 / 5 (3) | comments 0

Dutch researchers develop anthrax sensor

Nanotechnologists at University of Twente's MESA+ research institute have developed a sensor that can detect anthrax spores. The invention is more sensitive and efficient than existing detection methods. The ...

Chemistry / Analytical Chemistry

created Jul 16, 2010 | popularity 5 / 5 (1) | comments 0

Water-splitting Photocatalyst Brought to Light

(PhysOrg.com) -- To produce "green" fuels, some scientists are looking for a little help from above. Sunlight is the key ingredient in photocatalytic water splitting, a process that breaks down water into ...

Physics / Condensed Matter

created Jun 16, 2010 | popularity 4.5 / 5 (18) | comments 2 | with audio podcast

Researchers create 3-D invisibility cloak: study

European researchers have taken the world a step closer to fictional wizard Harry Potter's invisibility cape after they made an object disappear using a three-dimensional "cloak", a study published Thursday in the US-based ...

Physics / General Physics

created Mar 18, 2010 | popularity 4.4 / 5 (16) | comments 6