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  • Date:18TuesdayJuly 2017

    AMO Special Seminar

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    Towards high precision frequency comb spectroscopy in the extreme ultraviolet
    Edna and K.B. Weissman Building of Physical Sciences
    Dr. Gil Porat
    JILA & University of Colorado, Boulder
    Department of Physics of Complex Systems
    AbstractShow full text abstract about High precision spectroscopy of few-electron atoms and ions i...»
    High precision spectroscopy of few-electron atoms and ions is strongly motivated by the need to test fundamental theory (e.g., quantum electrodynamics) in simple systems, amenable to precise calculation for comparison with experimental measurement. Additionally, transitions from the ground state are most susceptible to both QED and nuclear structure effects, making them appealing as tools for testing nuclear structure theory. The frequencies of transitions from the ground state in many such systems reside in the extreme ultraviolet range of the electromagnetic spectrum (XUV, wavelengths of 10-120 nm). However, spectroscopic resolution in the XUV is severely limited by the availability of appropriate sources of XUV radiation. In this talk I will discuss our experimental method of generating an XUV frequency comb laser, and our progress in scaling up the power of this laser in order to enable the highest spectroscopic precision in the XUV to date.