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Up to date - 07.01.2009

Call for Papers
The World of Photonics Congress is the leading trade congress in Europe for optical technologies, and provides both a strategic and operative venue for a diverse range of conferences. Those wishing to participate as speakers and present their research results to an international specialist audience, simply have to apply.

Lasers for macro processing
Transport and energy are growth industries. Joining technologies that allow large, thick-walled components to be processed with short production times are required for developing wind power plants, pipelines and secure transport containers. The combination of laser and electric arc into a common welding process offers financial benefits. The development of superlative lasers in the multi-kilowatt range will enable the future use of hybrid laser-electric arc processes with big metal plate thicknesses.

A sub-femtosecond stop watch for ‘Photon Finish’ races
Using a system that can compare the travel times of two photons with sub-femtosecond precision, scientists at the Joint Quantum Institute (a partnership of the National Institute of Standards and Technology (NIST) and the University of Maryland) and Georgetown University have found a remarkably large difference in the time it takes photons to pass through nearly identical stacks of materials with different arrangements of refractive layers.

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