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    • Joachim Hein

    Senior Scientist, Institute of Optics and Quantum Electronics

    Joachim Hein is a senior scientist at the Institute of Optics and Quantum Electronics (Jena, Germany).

    (Courtesy of Hellma Materials and Friedrich-Schiller-Universität Jena)
    A Yb3+-doped CaF2 crystal is highly transparent in the visible (colors are caused by antireflection coatings).
    Lasers & Sources

    SOLID-STATE LASERS: Very-large-scale DPSS lasers are coming

    Joerg Neukum
    Oct. 1, 2010
    New alkaline-earth fluoride laser materials and ever-improving diode-laser module technology are bringing very high-energy, moderate- to high-repetition-rate DPSS lasers for research...