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Scientists surpass quantum measurement sensitivity

Pioneering researchers in Europe have done what no one has been able to do: surpass the limit on the sensitivity of a quantum measurement. The result could play a key role in interferometry and quantum limits of measurement.

Posted: Apr 4th, 2011

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Body sensors are joining the future internet

Researchers at the Department of Informatics, University of Oslo, are developing sensors for the future. Their size decreases. They are more robust than today's sensors, communicate wirelessly, and even reduce energy consumption to a minimum. But more important: The researchers are connecting all sensors to the Future Internet.

Posted: Apr 4th, 2011

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Transmission lines for nanofocusing of infrared light

A joint cooperation between three research groups at nanoGUNE (Donostia - San Sebastian, Spain) reports an innovative method to focus infrared light with tapered transmission lines to nanometer-size dimensions. This device could trigger the development of novel chemical and biological sensing tools, including ultra-small infrared spectrometers and lab-on-a-chip integrated biosensors.

Posted: Apr 4th, 2011

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Search for advanced materials aided by discovery of hidden symmetries in nature

The discovery by two Penn State University researchers is a new type of symmetry in the structure of materials, which the researchers say greatly expands the possibilities for discovering or designing materials with desired properties. The research is expected to have broad relevance in many development efforts involving physical, chemical, biological, or engineering disciplines including, for example, the search for advanced ferroelectric ferromagnet materials for next-generation ultrasound devices and computers.

Posted: Apr 3rd, 2011

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Self-cooling observed in graphene elctronics

With the first observation of thermoelectric effects at graphene contacts, University of Illinois researchers found that graphene transistors have a nanoscale cooling effect that reduces their temperature.

Posted: Apr 3rd, 2011

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Molekulare optische Schalter entwickelt

Physiker haben in einem neuartigen Ansatz gezeigt, wie die Ausbreitungsrichtung von Licht bzw. Lichtenergie auf der Ebene einzelner Molekuele manipuliert werden kann. Dazu platzierten die Biophysiker eine Kaskade von vier verschiedenen Fluoreszenz-Farbstoffmolekuelen auf einer DNA-Plattform im Nanometer-Massstab. Mithilfe eines sogenannten "Springer"-Farbstoffs gelang es ihnen, die Richtung des Lichtweges bzw. des Energietransfers zu kontrollieren.

Posted: Apr 3rd, 2011

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