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DNA and quantum dots: All that glitters is not gold

A team of researchers at the National Institute of Standards and Technology has shown that by bringing gold nanoparticles close to the dots and using a DNA template to control the distances, the intensity of a quantum dot's fluorescence can be predictably increased or decreased. This breakthrough opens a potential path to using quantum dots as a component in better photodetectors, chemical sensors and nanoscale lasers.

Posted: Jan 25th, 2013

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Quantum communication: Each photon counts

Ultrafast, efficient, and reliable single-photon detectors are among the most sought-after components in photonics and quantum communication, which have not yet reached maturity for practical application. Researchers have now achieved the decisive breakthrough by integrating single-photon detectors with nanophotonic chips. The detector combines near-unity detection efficiency with high timing resolution and has a very low error rate.

Posted: Jan 25th, 2013

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Molekularer Informationsspeicher mit Spin

Ein internationales Forscherteam hat eine Möglichkeit gefunden, Datenmengen von bis zu einem Petabyte pro Quadratzoll zu speichern. Den Wissenschaftlern gelang es, Informationen, die im Spin eines Elektrons gespeichert sind, bei Raumtemperatur in einem organischen Molekül zu speichern und auszulesen.

Posted: Jan 25th, 2013

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Graphene: Taking the wonder-stuff from dream to reality

A centre for research on graphene, a material which has the potential to revolutionise numerous industries, ranging from healthcare to electronics, is to be created at the University of Cambridge. The University has been a hub for graphene engineering from the very start and now aims to make this "wonder material" work in real-life applications.

Posted: Jan 24th, 2013

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