News tagged with absorption

Does dark magma lurk in deep Earth?

(Phys.org) —A key to understanding Earth's evolution is to look deep into the lower mantle—a region some 400 to 1,800 miles (660 to 2,900 kilometers) below the surface, just above the core. Data have ...

Nov 13, 2014
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How to make a "perfect" solar absorber

The key to creating a material that would be ideal for converting solar energy to heat is tuning the material's spectrum of absorption just right: It should absorb virtually all wavelengths of light that ...

Sep 29, 2014
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Modified theory of dark matter

Dark matter is an aspect of the universe we still don't fully understand. We have lots of evidence pointing to its existence (as I outlined in a series of posts a while back), and the best evidence we have point ...

Sep 12, 2014
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Addressing the weak optical absorption of graphene

Graphene-based photodetectors have attracted strong interest because of their exceptional physical properties, which include an ultra-fast response across a broad spectrum, a strong electron–electron interaction ...

Sep 10, 2014
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New laser lab on wheels to reduce emissions

The DIAL (Differential Absorption Lidar) facility is a sophisticated laser-based system that provides rapid, accurate measurements of airborne emissions. It is a completely self-contained mobile laboratory ...

Jun 02, 2014
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