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Dielectric imaging and sensing
Overview

The interaction of mm and THz waves with materials is described by the dielectric permittivity and magnetic permeability function. The research work in this area concerns:

  • Characterization of material properties using quasi-optical vector based measurement techniques (S-parameters)

  • Development of powerful and robust hierarchical algorithms (combinations of direct and indirect techniques) to extract material properties of single and multi-layer structures

  • Evaluation of dielectric mixing models of compounds and mixtures

  • Process control of industrial processes

The materials of our interest include: technology materials for realizing integrated and packaged electronic circuits and systems: semiconductors (Si, GaAs), dielectrics, insulators (BCB), ceramics, polymers, liquids, powders, granular materials, mixtures… The target industries can be very diverse: electronic, chemical, food, pharmacy, biotech, agriculture, construction,…

Relevant Activities

Mathematical Problems in Imaging

  • Environmental: Fish counting and monitoring devices.
  • Automotive: Proximity sensing applications, including reversing sensors and blind spot imaging.
  • Security and utility: Through wall imaging, airport security screening.

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