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Advanced Materials

A New Femtosecond Laser-Based Tomography Technique for Multiphase Materials

Authors

  • McLean P. Echlin,

    Corresponding author
    1. Materials Department, University of California Santa Barbara, Building 503, Santa Barbara, CA 93106–5050 USA and Materials Science Engineering Department, University of Michigan, 3062D HH. Dow Building–2300 Hayward Street Ann Arbor, MI 48109 USA
    • Materials Department, University of California Santa Barbara, Building 503, Santa Barbara, CA 93106–5050 USA and Materials Science Engineering Department, University of Michigan, 3062D HH. Dow Building–2300 Hayward Street Ann Arbor, MI 48109 USA.
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  • Naji S. Husseini,

    1. Department of Applied Physics, 2477 Randall Laboratory–450 Church St. Ann Arbor, MI 48109, USA
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  • John A. Nees,

    1. Center for Ultrafast Optical Science, 1012 Gerstacker Bldg. 2200 Bonisteel Blvd, Ann Arbor, MI 48109, USA
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  • Tresa M. Pollock

    1. Materials Department, Building 503, Room 1355, Santa Barbara, CA 93106–5050 USA
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Abstract

A new tomography technique for image 3D nm-scale material features in mm3 volumes has been developed. The technique employs a femtosecond laser for layer-by-layer material removal at rates 4–5 orders of magnitude faster than comparable serial sectioning techniques. The technique can be applied to a wide range of multiphase materia ls and an example of its application for imaging of TiN particles inhomogeneously dispersed in a metallic matrix is given.

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