"Low-Pressure Formation Routes for Interstellar Microdiamonds: Chemical Vapor Deposition vs. Homogeneous Nucleation", 59th Annual Meteoritical Society Meeting, July 22 - 26, 1996, Humboldt-University, Berlin (Germany)
"CO2 Laser Induced Vapor-Phase Synthesis of HN-Diamond Nanoparticles at 0.6-2 bar", Vapor Phase Manufacture of Materials, January 23-28, 1994, Kona, Hawaii (USA)
"CO2 Laser Induced Gas-Phase Synthesis of Micron-Sized Diamond Powders; Recent Results and Future Developments", Diamond Films 1992, Third European Conference on Diamond, Diamond-Like and Related Coatings, August 31 - September 4, 1992, Heidelberg (Germany)
"Substrate-free Gas-Phase Synthesis of Diamond Powder by CO2 Laser Pyrolysis of C2H4 ", Diamond Films 1990, First European Conference on Diamond and Diamond-Like Carbon Coatings, September 17 - 19, 1990, Crans-Montana (Switzerland)
"What happened over 10,000 years ago? - LabVIEW holds the answer"
LabVIEW User Group Meeting, San Diego, May 10, 2005"Lasersynthese von Diamant-Nanopartikeln auf der Erde und unter Weltraumbedingungen" (Laser synthesis of diamond nanoparticles on earth and under space conditions), EMPA (Swiss Federal Laboratories for Materials Testing and Research), Dübendorf (Switzerland), November 27, 2002
"CVD-Diamantschichten: Eine neue Herausforderung für Diamantgutachter ?" (CVD-diamond coatings: a new challenge for diamond graders ?), German Gemological Association, Idar-Oberstein (Germany), November 30, 1995
"Homogeneous Nucleation and Growth of Diamond Nanoparticles", Low-G-Forum '95, Intospace GmbH, Aerospatiale, Paris (France), June 13, 1995
"CO2 Laser Induced Vapor-Phase Synthesis of Diamond Powders at 0.6 - 2 bar", First COE Seminar, National Institute for Research in Inorganic Materials, Tsukuba (Japan), March 30, 1994
"Prototype of a Laser Reactor for Nanoparticle Synthesis in Microgravity", Particle Technology Laboratory, Swiss Federal Institute of Technology (ETH) Zurich (Switzerland), November 25, 2002
"Homogeneous Nucleation of Diamond at Atmospheric Pressure", Max-Planck Research Unit "Dust in Star Forming Regions", Friedrich-Schiller University, Jena (Germany), March 26, 1996
"Homogene Nukleation von Diamant bei Atmosphärendruck", Max-Planck-Institute for Chemistry (Otto-Hahn Institute), Department of Isotope Cosmology, Mainz (Germany), February 1, 1996
"CO2 laser Induced Vapor-Phase Synthesis of Diamond Powders at 0.6 - 2 bar", Max-Planck-Institute of Microstructure Physics, Halle (Germany), November 29, 1994
"Revisiting an early attempt to synthesize nanodiamonds in the gas-phase"
NATO Advanced Research Workshop on Synthesis, Properties and Applications of Ultrananocrystalline Diamond, June 7 - 10, 2004, St. Petersburg (Russia)"Potential Applications of State-of-the-Art Measurement and Automation Platforms in the Ocean Sensors Field"
Workshop on The next Generation of in situ Biological and Chemical Sensors in the Ocean, July 13 - 16, 2003, Woods Hole Oceanographic Institution, Woods Hole (USA)"Commercial CVD-Diamond Windows and Optics Suited for Imaging and Spectroscopy Applications in Deep Ocean Environments"
Workshop on The next Generation of in situ Biological and Chemical Sensors in the Ocean, July 13 - 16, 2003, Woods Hole Oceanographic Institution, Woods Hole (USA)"Microgravity Tested 38 W CO2 Laser Reactor Prototype for the Gas-Phase Synthesis of Refractory Materials", 5th International Microgravity Combustion Workshop, May 18 - 22, 1999, Cleveland, Ohio (USA)
"Observation of the H2 Defect in Gem Quality Type Ia Diamond", Diamond 1998, 9th European Conference on Diamond and Related Materials, September 13 - 18, 1998, Crete (Greece)
"Homogeneous Nucleation of Diamond Particles at Atmospheric Pressure", 59th Annual Meteoritical Society Meeting, July 22 - 26, 1996, Humboldt-University, Berlin (Germany)
"Synthesis of Ultrafine Si3N4 Particles by CO2 Laser Induced Gas-Phase Reactions", High Temperature Materials Chemistry 1989, Sixth International Conference on High Temperatures-Chemistry of Inorganic Materials, National Institute of Standards and Technology (NIST), April 3 - 7, 1989, Gaithersburg (USA)
"Source Analysis of Heavy Metals Adsorbed on Aerosols as a Function of their Size Distribution", 15th Annual Conference of the Society for Aerosol Research (GAeF) e.V., September 9 - 11, 1987, Hannover (Germany)