Research Fellow of the Alexander von Humboldt-Foundation Dr. John H. Lehman from National Institute of Standards and Technology (NIST), who has been awarded multiple times, will be giving a seminar on the topic "A new generation of detectors for laser radiometry at NIST". Monday, 25.04.2016, 11am Campus North, ANKA seminar room Dr. John Lehman is leader of the Sources and Detectors Group in the Applied Physics Division at NIST in Boulder, Colorado. Presently, Dr. Lehman is undertaking a Special Fellowship of the Alexander von Humboldt Foundation at the Physikalisch Technische Bundesanstalt (PTB) in Berlin. The emphasis of the work is to demonstrate an absolute radiometer based on the multifunctional properties of carbon nanotubes. The radiometer is intended to provide measurements for far infrared (free-field THz) radiation. The speaker and host will visit the regular CN Casino and cafeteria for lunch and discussions after the seminar. Interested persons of the audience are welcome to join. More information: http://www.intl.kit.edu/download/25-04_NIST_Lehman.pdf

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