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7TH INTERNATIONAL WORKSHOP ON MICROPLASMAS 2013
The 7th International Workshop on Microplasmas took place from from Monday, May 20th to Thursday, May 23rd, 2013 in the Fragrant Hill Hotel near Bejing, China. This workshop was the seventh in a series that started in Japan in 2003 and has since alternated between venues in Asia, the USA and Europe.
The intent of the workshop is to bring together researchers from around the world to report on recent progress in understanding and in controlling the properties of plasmas generated in confined geometries.
The Research Department "Plasmas with Complex Interactions" and thus the Research Unit "Physics of Microplasmas" FOR1123 was represented by Jan Benedikt, Marc Böke, Denis Eremin, Dirk Luggenhölscher, Daniel Schröder, Achim von Keudell, and Jörg Winter.
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TP4
GUESTS FROM ANKARA
From May 17-21, 2013, Seydi Yavas, Burak Eldeniz and Sinem Yilmaz (pictured from left to right) from the Ultrafast Optics & Lasers Laboratory (UFOLAB) at Bilkent University in Ankara, Turkey, visited the Institute of Experimental Physics II to work on the laser with PhD student Stefan Spiekermeier. They installed the temperature-stabilized oscillator for the femtosecond laser.
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EP2
PROF. DR. LAWRENCE J. OVERZET
Prof. Dr. Lawrence J. Overzet from UT Dallas will be a guest of Dr. Volker Schulz-von der Gathen and Judith Golda from May 13-16, 2013 as part of the research group FOR1123 "Physics of Microplasmas".
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INTERNATIONAL CONFERENCE ON METALLURGICAL COATINGS AND THIN FILMS (ICMCTF) 2013
The International Conference on Metallurgical Coatings and Thin Films (ICMCTF) is internationally recognized as the premier international conference focused on thin-film deposition, characterization, and advanced surface engineering. It brings together scientists, engineers, and technologists from academia, government laboratories, and industry, thereby merging cutting-edge research with real-world applications. The conference consistently draws more than 700 attendees each year within 32 oral technical sessions and a well-attended poster session.
2013, the conference took place from April 29 - May 3, 2013. Dr. Ante Hecimovic represented the Research Department "Plasmas with Complex Interactions" and gave an oral presentation entitled “The characteristic shape of emission profiles of plasma spokes in HiPIMS: the role of secondary electrons”. The presentation focused on the latest findings related to the plasma inhomogeneities observed in high power impulse magnetron sputtering (HiPIMS/HPPMS) discharge. Based on the experimental data and modelling of the discharge a model explaining the physical mechanism behind the plasma inhomogeneities has been presented.
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10TH FRONTIERS IN LOW TEMPERATURE PLASMA DIAGNOSTICS (FLTPD)
The 10th Frontiers in Low Temperature Plasma Diagnostics was held from April 28th—May 2nd, 2013 at the Conference Centre Rolduc in Kerkrade, the Netherlands. PhD student Stefan Spiekermeier from the Research Unit "Physics of Microplasmas" FOR1123 participated in that conference.
The Frontiers in Low Temperature Plasma Diagnostics (FLTPD) brings together experts in the field of low temperature plasma diagnostics and create the possibility to share knowledge of these diagnostics with the new generation of scientists.
The 10th FLTPD is the continuation of a very successful biennial series that began in 1995 at Les Houches (France) and is organized by the Eindhoven University of Technology (TU/e) and the Dutch Institute for Fundamental Energy Research (DIFFER).
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Chemistry
PROF. DR. OLA NILSEN
In the context of the "Inorganic Chemistry Colloquium" Prof. Dr. Ola Nilsen from the Dept. of Chemistry of the University of Oslo Norway will talk about "Constructing complex oxides by ALD" on May 8, 2013 starting at 9:00 am (Core Lecture Hall NC 3/99).
Abstrac: The atomic layer deposition (ALD) technique can be used to construct thin films of numerous different types of binary oxides with surprisingly good quality. These oxides grow through self-limiting chemical reactions between the vapour phase and the available surfaces. When such binary processes are combined, several new effects may occur which may enhance or retard the processes since the surface chemistry is altered. The current talk will elaborate on experiences in deposition of multicomponent materials and show that what one first may believe is an obstacle, might be to your advantage.
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H.E.S.S. Meeting 2013
22.04. - 26.04.2013 Event Center
Faculty of Physics and Astronomy
Institute for Theoretical Physics IV
http://www.mpi-hd.mpg.de/hfm/HESS/
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24.04.2013 - PROF. JÖRG WINTER AN DER BILKENT UNIVERSITY, ANKARA
Vom 17. bis zum 20. April 2013 war Prof. Jörg Winter zu Gast bei Prof. Ömer Ilday am Ultrafast Optics & Lasers Laboratory der Bilkent University in Ankara, Türkei. Dort hielt er einen Vortrag über "Exploring the 4th State of Matter" und verlängertes das Kooperationsabkommen mit der Bilkent University.
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KICK-OFF MEETING OF COST ACTION TD1208 “ELECTRICAL DISCHARGES WITH LIQUIDS FOR FUTURE APPLICATIONS”
Kick-off meeting of COST Action TD1208 “Electrical discharges with liquids for future applications”, has been held on Aril 11th, 2013 in Brussels. Plasmas generated in liquids and gas discharges interacting with liquids are today hot research. Plasma-liquid systems can produce strongly non-equilibrium environments and plasma-liquid interactions represent a great opportunity for developing novel chemistries and related technologies. This proposed Action aims bringing together a high level of experimental, simulation and theoretical expertise available around Europe and will support a coordinated effort that will improve our knowledge of basic processes responsible for initiating and sustaining discharges in/on liquids. Potential technological impact is foreseen in a range of application fields such as water and surface treatment, synthesis of nanoparticles, catalysis, formation of new organic compounds, and biochemistry. The chair of this action is Prof. Prof Frantisek Krcma from Brno University of Technology in Czech Republic and 23 countries are up to now the members of the Management Committee. Germany is represented by Jun.-Prof. Jan. Benedikt (Ruhr-Univeristy Bochum) and Dr. Stephan Reuter (INP, Greifswald).
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09.04.2013 - QUANTITATIVE DETERMINATION OF OH RADICALS BY CAVITY RINGDOWN SPECTROSCOPY IN ATMOSPHERIC PRESSURE MICRO-PLASMAS FOR BIO-MEDICAL APPLICATIONS
From March the 24rd to April 6th, 2013, the PhD-students Simon Schneider and Daniel Schröder from project C1 and A1, as well as Jun.-Prof. Dr. Jan Benedikt, all members of the DFG Research Unit FOR1123, visited the group of Prof. RNDr. Jaroslav Vlcek at the University of West Bohemia, Plzen, CZ.
During this stay, absolute densities of OH radicals in the effluent of the micro-scaled atmospheric pressure plasma jet (µ-APPJ) have been measured in dependence of different concentrations of water impurities in the feed gas. This has been achieved by using a highly sensitive laser diagnostics called Cavity Ringdown Spectroscopy.
A common publication is in progress and a counter-visit is planned for next year.
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EP2
PROF. DR. IGOR DENYSENKO
Professor Igor Denysenko of the School of Physics and Technology, V. N. Karazin Kharkiv National University, Ukraine, is a guest of Experimental Physik II from 2nd March to 15th April 2013. We continue our collaboration with Prof. Denysenko in the research field of dusty plasmas. Prof. Denysenko has developed a space-averaged global model to characterize the afterglow of pulsed argon plasmas which contain the large density of hydro-carbonaceous dust particles [1]. This global model is further developed in order to study the time evolution of the dust charge and the rate coefficient for electron collection by dust particles. During Prof. Denysenko’s stay in Bochum, we have prepared an article on this study. Furthermore, an article on a new non-invasive method for measurements of ion fluxes and ion densities in pulsed capacitively-coupled RF plasmas has been submitted. We kindly acknowledge the financial support of the Humbolt Foundation.
[1] I. Denysenko, I. Stefanovic, B. Sikimic, J. Winter, N.A. Azarenkov, and N. Sadeghi, J. Phys. D: Appl. Phys. 44 (2011) 205204