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78 Current news of TU Wien
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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, ...
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 ...
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 ...
Tailored Polymers from a Printer
Efficient chain transfer for 3D-printing of tough photopolymers
10-Jul-2018
An ever-growing number of coatings, including varnishes and printing inks, as well as tooth fillings, are cured with light. Yet, homogenous, tailored, polymer networks cannot be produced, and the materials tend to be brittle, which limits the use of photopolymers in applications like 3D printing, ...
Perfect Images: A High-Performance Microscope Dangling From Bungee Cords
Patented vibration damping system enables images of highest quality
10-Apr-2018
To produce images of individual atoms, a microscope shouldn't shake. A patented vibration damping system developed at the TU Wien enables images of the highest quality. It is one of the most accurate measurement instruments available today: the high-performance microscope at the Institute of ...
Nanostructures made of previously impossible material
Incorporating high proportions of foreign atoms into crystals
07-Mar-2018
When you bake a cake, you can combine the ingredients in almost any proportions, and they will still always be able to mix together. This is a little more complicated in materials chemistry. Often, the aim is to change the physical properties of a material by adding a certain proportion of an ...
Quantum Recurrence: Everything Goes Back to the Way it was
26-Feb-2018
At some point, complex systems return almost exactly to their initial state. For the first time, this recurrence theorem has now been demonstrated with complex quantum many-body systems at TU Wien (Vienna). It is one of the most astonishing results of physics: when a complex system is left alone, ...
Strange things happen when a crystal gets split in two
05-Feb-2018
When a crystal is broken along certain directions the atoms reorganize in amazing ways. Researchers in Vienna have watched this happen, and have learned to control it. The remarkable strength of ionic crystals is easily explained at the atomic scale: Positively and negatively charged atoms sit ...
