• Björn Globisch

    Head, Terahertz Sensor Systems Group at the Fraunhofer Institute for Telecommunications

    Björn Globisch is Professor for Physics at the Technical University Berlin and head of the Terahertz Sensors and Systems research group at the Fraunhofer Institute for Telecommunications (Fraunhofer HHI; Berlin, Germany). 

    (Image credit: Helmut Fischer GmbH)
    A multisensor head uses terahertz radiation for layer thickness measurement.
    Andreas Thoss
    Feb. 24, 2021
    A new fiber-based system enables fast measurements with sub-micron precision; the next step will be integration of all components towards chip-size.
    FIGURE 1. An optical time-domain spectroscopy unit (a) generates the ultrafast pump/probe signals while the near-field scanner unit (b) includes the terahertz emitter and near-field detector components, as well as translation stages for high-resolution field mapping; a sample or device under test is loaded to the near-field scanner unit.
    Michael Nagel
    Oct. 12, 2017
    Replacing free-space optics with fiber-coupled, integrated components allows modular terahertz time-domain imaging systems to excel in solar and semiconductor wafer analysis.