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
127-year-old physics problem solved
22.08.2019 | Norwegian University of Science and Technology
Physicists create world's smallest engine
22.08.2019 | Trinity College Dublin
Theoretical physicists at Trinity College Dublin are among an international collaboration that has built the world's smallest engine - which, as a single calcium ion, is approximately ten billion times smaller than a car engine.
Work performed by Professor John Goold's QuSys group in Trinity's School of Physics describes the science behind this tiny motor.
Together with the University of Innsbruck, the ETH Zurich and Interactive Fully Electrical Vehicles SRL, Infineon Austria is researching specific questions on the commercial use of quantum computers. With new innovations in design and manufacturing, the partners from universities and industry want to develop affordable components for quantum computers.
Ion traps have proven to be a very successful technology for the control and manipulation of quantum particles. Today, they form the heart of the first...
Experimental progress towards engineering quantized gauge fields coupled to ultracold matter promises a versatile platform to tackle problems ranging from condensed-matter to high-energy physics
The interaction between fields and matter is a recurring theme throughout physics. Classical cases such as the trajectories of one celestial body moving in the...
Soft robots have a distinct advantage over their rigid forebears: they can adapt to complex environments, handle fragile objects and interact safely with humans. Made from silicone, rubber or other stretchable polymers, they are ideal for use in rehabilitation exoskeletons and robotic clothing. Soft bio-inspired robots could one day be deployed to explore remote or dangerous environments.
Most soft robots are actuated by rigid, noisy pumps that push fluids into the machines' moving parts. Because they are connected to these bulky pumps by tubes,...
Researchers at TU Graz are working together with European partners on new possibilities of measuring vehicle emissions.
Today, air pollution is one of the biggest challenges facing European cities. As part of the Horizon 2020 research project CARES (City Air Remote Emission...
16.08.2019 | Event News
14.08.2019 | Event News
12.08.2019 | Event News
22.08.2019 | Life Sciences
22.08.2019 | Physics and Astronomy
22.08.2019 | Physics and Astronomy