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Novel Laser Technology for Microchip-Size Chemical Sensors

12-Dec-2018

"Frequency combs" are optimally suited for chemical sensors. A revolutionary technology developed at TU Wien (Vienna) now produces these laser frequencies in a much easier and more robust way. Most lasers have only one color. All the photons it emits have exactly the same wavelength. However, ...

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Ultracold quantum mix

23-Nov-2018

The experimental investigation of ultracold quantum matter makes it possible to study quantum mechanical phenomena that are otherwise hardly accessible. A team led by the Innsbruck physicist Francesca Ferlaino has now succeeded for the first time in mixing quantum gases of the strongly magnetic ...

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First diode for magnetic fields

23-Nov-2018

Innsbruck quantum physicists have constructed a diode for magnetic fields and then tested it in the laboratory. The device, developed by the research groups led by the theorist Oriol Romero-Isart and the experimental physicist Gerhard Kirchmair, could open up a number of new applications. ...

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RNA Microchips

A new chapter in ribonucleic acid synthesis

08-Nov-2018

Ribonucleic acid (RNA) is, along with DNA and protein, one of the three primary biological macromolecules and was probably the first to arise in early life forms. In the “RNA world” hypothesis, RNA is able to support life on its own because it can both store information and catalyze biochemical ...

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Better Imaging Using Sound

A microscopy technique in which sound is measured instead of light.

28-Sep-2018

Individual molecules cannot be photographed – if you wish to visualise objects that are smaller than the wavelength of light, you'll need a few special tricks up your sleeve. You can use electron microscopes for example, or determine the position of specific fluorescent molecules by taking a ...

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Superradiance: Quantum Effect Detected in Tiny Diamonds

05-Sep-2018

Under certain conditions, an atom can cause other atoms to emit a flash of light. At TU Wien (Vienna), this quantum effect has now been measured. The effect has been predicted theoretically decades ago - but it is very hard to provide experimental evidence for it: "Superradiance" is the ...

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Watching two-dimensional materials grow

30-Aug-2018

Atomically thin crystals will play an ever greater role in future – but how can their crystallisation process be controlled? A new method is now opening up new possibilities. They are among the thinnest structures on earth: “two dimensional materials” are crystals which consist of only one or a ...

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The world’s cleanest water droplet

24-Aug-2018

What effect does water have on ultra-clean surfaces? Using a novel method, researchers at TU Wien and Cornell University have succeeded in demonstrating that smallest impurities can have a surprising effect. In nature there is no such thing as a truly clean surface. Contact with normal air is ...

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When sulfur disappears without trace

Chemists finally find a surprisingly simple reaction to make a family of bioactive molecules

20-Aug-2018

Many natural products and drugs feature a so-called dicarbonyl motif – in certain cases however their preparation poses a challange to organic chemists. In their most recent work, Nuno Maulide and his coworkers from the University of Vienna present a new route for these molecules. They use ...

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Color effects from transparent 3D-printed nanostructures

New design tool automatically creates nanostructure 3D-print templates for user-given colors

20-Aug-2018

Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and certain color effects are impossible to achieve. The natural world, however, also exhibits structural coloration, where the microstructure of an ...

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