News tagged with spectrum

Fine-tuning emissions from quantum dots

Tiny particles of matter called quantum dots, which emit light with exceptionally pure and bright colors, have found a prominent role as biological markers. In addition, they are realizing their potential in computer and ...

dateJun 03, 2013 in Nanophysics
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Dish tops Sprint's bid for Clearwire ahead of vote

Satellite TV operator Dish Network has raised its bid for Clearwire Corp., valuing the wireless network operator at $6.9 billion, in an attempt to outbid Sprint Nextel Corp. two days before Clearwire shareholders are meeting ...

dateMay 30, 2013 in Telecom
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Investigating exoplanet surfaces

In order to better understand the composition of rocky exoplanets, researchers have proposed a method to identify chemical signatures from surface materials. A better understanding of exoplanet surface compositions will help ...

dateMay 27, 2013 in Astronomy
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Making frequency-hopping radios practical

The way in which radio spectrum is currently allocated to different wireless technologies can lead to gross inefficiencies. In some regions, for instance, the frequencies used by cellphones can be desperately congested, while ...

dateMay 15, 2013 in Semiconductors
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Galactic knee and extragalactic ankle

It is obvious from the data of the KASCADE-Grande experiment at the Karlsruhe Institute of Technology (KIT) that the so-called "knee" of the cosmic rays, a bend in the energy spectrum at high energies, is located at different ...

dateMay 09, 2013 in Astronomy
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