Characterization of Micro-Powders for the Fabrication of Compression Molded THz Lenses

  • Benedikt Scherger
  • Steffen Wietzke
  • Maik Scheller
  • Nico Vieweg
  • Matthias Wichmann
  • Martin Koch
  • Karin Wiesauer
Article

Abstract

We investigate different micro-powders that can be used as base materials for THz lenses fabricated by compression molding. For this application materials with a very weak THz absorbance and low dispersion are required. By measuring the THz absorption coefficient and refractive index of pellets pressed from the different micro-powders, we identify several materials that are well suited for the fabrication of compression molded THz lenses (CMLs). In addition, a considerable range of the refractive index is covered by the samples, which will allow for the fabrication of CMLs with different focal lengths for one and the same lens design.

Keywords

THz spectroscopy Material parameters Micro-powders Quasi-optics 

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Benedikt Scherger
    • 1
  • Steffen Wietzke
    • 1
  • Maik Scheller
    • 1
  • Nico Vieweg
    • 1
  • Matthias Wichmann
    • 1
  • Martin Koch
    • 1
  • Karin Wiesauer
    • 1
    • 2
  1. 1.Fachbereich PhysikPhilipps Universität MarburgMarburgGermany
  2. 2.RECENDT Research Center for Non Destructive Testing GmbHLinzAustria

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