or nearly 20 years, the advantages of using ultrashort laser radiation have been known. Due to fact that the pulsed have been shortened extremely, very high peak intensities can be reached, even for low pulse energies.
The effects are significant: materials can be precisely cut and removed, without causing thermal damage to the material. This is already being used for many different applications, for example for eye surgery. Cornea transplants using the fs laser have been common place for years.
And since 2011, the systems have been used to treat cataracts. Also, industry has profited from the advantages of ultrashort pulsed laser systems. These systems have been used, for example, to produce significantly more effective solar cells, or for improving expensive wafers used for chip production.
“Our goal is a 2 µm fs laser system emitting in the mid-infrared range,” explains Dr. Dieter Wandt, head of the Ultrafast Photonics Group, which is working on this laser. “These wavelengths have a great growth potential.” Wandt says that polymer processing is one important field of application. Using IR radiation, polymers can be cut or welded without using additives. For German laser manufacturers, this basic know-how should provide a decisive advantage in the international competition surrounding ultrashort laser pulses.The activities of the LZH are par of the project „Concepts for ultrashort pulsed beam sources of the next generation – Next Generation of Ultrafast Sources” NEXUS. Funding comes from the initiative “Ultrashort pulse laser for highly precise manufacturing” of the BMBF, until 2015.Apart from the laser institute in Hannover, project partners include the Friedrich Schiller University in Jena, the Leibniz University Hannover and the Ludwig-Maximilians University in Munich.
Michael Botts | idw
Electrocatalysis can advance green transition
23.01.2017 | Technical University of Denmark
Quantum optical sensor for the first time tested in space – with a laser system from Berlin
23.01.2017 | Ferdinand-Braun-Institut Leibniz-Institut für Höchstfrequenztechnik
For the first time ever, a cloud of ultra-cold atoms has been successfully created in space on board of a sounding rocket. The MAIUS mission demonstrates that quantum optical sensors can be operated even in harsh environments like space – a prerequi-site for finding answers to the most challenging questions of fundamental physics and an important innovation driver for everyday applications.
According to Albert Einstein's Equivalence Principle, all bodies are accelerated at the same rate by the Earth's gravity, regardless of their properties. This...
An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales
Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...
19.01.2017 | Event News
10.01.2017 | Event News
09.01.2017 | Event News
23.01.2017 | Health and Medicine
23.01.2017 | Physics and Astronomy
23.01.2017 | Process Engineering