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The Beam of Invisibility: New cloaking technology has been developed

A special kind of material is irradiated from above in such a way that another beam of light can pass completely uninhibited

14-Sep-2017

How do we make an object invisible? Researchers from TU Wien (Vienna), together with colleagues from Greece and the USA, have now developed a new idea for a cloaking technology. A completely opaque material is irradiated from above with a specific wave pattern – with the effect that light waves ...

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Microprocessors based on a layer of just three atoms

12-Apr-2017

Two-dimensional materials, or 2D materials for short, are extremely versatile, although - or often more precisely because - they are made up of just one or a few layers of atoms. Graphene is the best-known 2D material. Molybdenum disulphide (a layer consisting of molybdenum and sulphur atoms that ...

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Diamonds coupled using quantum physics

11-Apr-2017

Diamonds with minute flaws could play a crucial role in the future of quantum technology. For some time now, researchers at TU Wien have been studying the quantum properties of such diamonds, but only now have they succeeded in coupling the specific defects in two such diamonds with one another. ...

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Switching oxygen on and off

15-Mar-2017

Oxygen atoms are highly reactive, yet the world does not spontaneously burn, even though everything is surrounded by this aggressive element. Why? The reason is that normal O2 molecules, are not particularly reactive. At the Vienna University of Technology, it has now been possible to selectively ...

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Fluorescence dyes from the pressure cooker

01-Feb-2017

The laboratory of Dr. Miriam M. Unterlass at the Institute of Materials Chemistry at TU Wien has just reported the synthesis of more than 20 different perylene bisimide dyes. This is not impressive per se. The way they prepare these compounds is though: Conventionally, perylene bisimides are ...

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Chiral quantum optics: A new research field with bright perspectives

31-Jan-2017

Recently, surprising physical effects were observed using special microscopic waveguides for light. Such "photonic structures" currently are revolutionizing the fields of optics and photonics, and have opened up the new research area of "Chiral Quantum Optics". Physicists from Copenhagen, ...

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Graphene able to transport huge currents on the nano scale

22-Dec-2016

Once again, graphene has proven itself to be a rather special material: an international research team led by Professor Fritz Aumayr from the Institute of Applied Physics at TU Wien was able to demonstrate that the electrons in graphene are extremely mobile and react very quickly. Impacting xenon ...

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A Nano-Roundabout for Light

13-Dec-2016

At TU Wien, it was possible to create a nanoscale optical element that regulates the flow of light particles at the intersection of two glass fibers like a roundabout. A single atom was used to control the light paths. Just like in normal road traffic, crossings are indispensable in optical ...

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Controlling electrons in time and space

16-Nov-2016

In an electron microscope, electrons are emitted by pointy metal tips, that way the can be steered and controlled with high precision. Recently, such metal tips have also been used as high precision electron sources for generating x-rays. A team of researchers at TU Wien (Vienna), together with ...

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Watching the buildup of quantum superpositions

14-Nov-2016

It is definitely the most famous experiment in quantum physics: in the double slit experiment, a particle is fired onto a plate with two parallel slits, so there are two different paths on which the particle can reach the detector on the other side. Due to its quantum properties, the particle ...

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