This statement was made by Professor Ferenc Krausz, Managing Director of MPQ, and Professor Ali Al-Gamdi, Vice Rector of KSU, on the occasion of a small start up ceremony at MPQ on November 20, 2008. MPQ and KSU scientists will work together on the development of novel radiation sources for coherent ultrashort intense light pulses that promise to benefit both fundamental and industrial research. The MPQ-KSU cooperation is part of the KSU Nobel program that aims at promoting novel technologies in the Saudi Arabic society.
The contract that was signed by Professor Abdullah Al-Othman, rector of KSU, and Professor Ferenc Krausz on January 16, 2008 - on the occasion of the visit of high-ranking Saudi Arabian politicians like the Minister of Higher Education, Dr. Khalid bin Mohammed Al-Angari, and leading scientists from Saudi Arabian universities - establishes a frame of close and long lasting cooperation in the fields of applied laser development and nanotechnologies. As far as the MPQ is concerned especially the Laser Spectroscopy Division of Nobel Prize winner Prof. T.W. Hänsch and the Attosecond and High-Field Physics Division of Prof. Ferenc Krausz are involved. ."We are looking forward to cooperate with MPQ, one of the leaders in the field of photonics", says the Saudi Arabic research team leader, Prof. Abdallah Azzeer. "Moreover, we intend to expose our students to Nobel Laureates as scientific role models, and want them to benefit from their expertise and distinguished experience."
In the beginning the cooperation pursues three projects. Common goal is the development of novel radiation sources for coherent ultrashort intense light pulses. At the border of the visible/near-infrared spectral range (at wavelengths around 800 nm) such light pulses have been available for a number of years. Extending the technical capability of generating intense, near-single-cycle waveforms to the ultraviolet or (near) infrared spectral ranges would open up a number of exciting research opportunities, reaching from fundamental research to semiconductor technologies.
State-of-the art-technique for producing light pulses of that kind is the method of generating "harmonics": laser light travelling through an optical nonlinear medium gives rise to radiation whose frequency is an integer times the frequency of the fundamental oscillation. Prof. Reinhard Kienberger (MPQ and Technical University of Munich) is leader of a project that aims at producing light pulses in the deep ultraviolet with unprecedented durations. High-density noble gases will be used as the nonlinear conversion target, driven by ultra-intense 800-nm-wavelength laser pulses of a few-cycles. This method may lead to the first high-intensity pulses approaching the 1-femtosecond frontier. "Intense few-femtosecond light pulses in the deep ultraviolet spectral range opens, for the first time, the door for steering electrons on molecular orbitals", Dr. Kienberger explains. "This constitutes an entirely new approach to coherent control of molecular processes and chemical reactions. "
The project that is headed by Dr. Jens Rauschenberger (MPQ, Ludwig Maximilians University) and Dr. Thomas Udem (MPQ) is supposed to extend the spectral range even further down to the extreme Ultraviolet (XUV). Here the conversion target shall be placed inside a resonator arrangement. Due to the recycling effect of unconverted fundamental radiation in the resonator, significantly higher conversion efficiencies can be reached. Also higher average powers in the XUV can be accomplished without compromising on the pulse repetition rate.
Drawing on these advantages the frequency comb technique could be extended to the XUV spectral range, thus providing further verification of quantum electrodynamics. "However, also appealing applications in industry exist", Dr. Rauschenberger points out. "Most prominently, the characterization of optical elements for XUV semiconductor lithography at 13 nm wavelength will be a key ingredient in the race towards ever smaller semiconductor structures and ever faster computers."
Dr. Laszlo Veisz on the other hand leads a project that pursues the conversion of powerful pulses (10-TW, 8-fs, 800-nm) from MPQ's LWS-10 (Light Wave Synthesizer 10) high-power source, which comprise approximately three field oscillation cycles, to near-infrared pulses confined to a single field cycle at a carrier wavelength between 1 ?m and 2 ?m. This frequency conversion is due to stimulated Raman scattering in molecular gases (H2 in this experiment). In this process the laser light changes the vibrational and rotational modes of the molecules by transferring energy to them. "Light pulses of that kind would truly be a spectacular achievement", Dr. Veisz says. "We should be able to produce coherent short-wavelength radiation in the kiloelectronvolt photon energy range. Furthermore we could exploit entirely new mechanisms for efficient laser-driven acceleration of high-density monoenergetic electron beams."
The contract as it was signed on January 16, 2008, is valid for a period of three years, but it is supposed to be renewed automatically. In a first step excellent students and PhD students from King Saud University will be trained in the projects described above. "We hope to not only accelerate progress in the development of novel light sources, but to also contribute to the spreading of photonics, which is one of the most important technologies of the future", Prof. Krausz sums up. [OM]Contact:
Study offers new theoretical approach to describing non-equilibrium phase transitions
27.04.2017 | DOE/Argonne National Laboratory
SwRI-led team discovers lull in Mars' giant impact history
26.04.2017 | Southwest Research Institute
More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.
Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...
Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
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...
20.04.2017 | Event News
18.04.2017 | Event News
03.04.2017 | Event News
27.04.2017 | Life Sciences
27.04.2017 | Physics and Astronomy
27.04.2017 | Earth Sciences