News tagged with laser technique

Ultra fast photodetectors out of carbon nanotubes

Single-walled carbon nanotubes are promising building blocks for future optoelectronic devices. But conventional electronic measurements were not able to resolve the ultra fast optoelectronic dynamics of the nanotubes. Now ...

dateMar 07, 2011 in Nanophysics
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MABEL flies her maiden voyage

Flying at the edge of space, a pilot wearing high-altitude flight gear maneuvered the ER-2 aircraft last month over the California desert. At 12 miles above the ground the temperature outside had plummeted to -70 F (-56 C) ...

dateJan 25, 2011 in Earth Sciences
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Chaotic laser brings out higher precision OTDR

Professor Wang Yun Cai and his student Wang An Bang reported a new concept of optical time domain reflectometry (OTDR) based on a chaotic light correlation method. This will be useful for precise fault location in fiber links ...

dateJun 03, 2010 in General Physics
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Tracing ultra-fine dust

Limit values for fine dust emissions are based on total particle weight. It is the ultra-fine particles, however, that are particularly harmful to health. A new technique separates them by size and identifies their composition ...

dateOct 05, 2009 in Engineering
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A New Glance on Microscopic Images

A doctoral student at the research center Forschungszentrum Dresden-Rossendorf (Germany) suggests interpreting the images generated by Kelvin probe force microscopy in a new way. She recently published her insights in the ...

dateSep 16, 2009 in Nanophysics
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