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Applied Physics A

, Volume 74, Issue 2, pp 291-293

First online:

Flexible all-plastic mirrors for the THz range

  • D. TurchinovichAffiliated withDepartment of Molecular and Optical Physics, University of Freiburg, 79104 Freiburg, Germany
  • , A. KammounAffiliated withInstitut für Hochfrequenztechnik, Technische Universität Braunschweig, Schleinitzstr. 22, 38106 Braunschweig, Germany
  • , P. KnoblochAffiliated withInstitut für Hochfrequenztechnik, Technische Universität Braunschweig, Schleinitzstr. 22, 38106 Braunschweig, Germany
  • , T. DobbertinAffiliated withInstitut für Hochfrequenztechnik, Technische Universität Braunschweig, Schleinitzstr. 22, 38106 Braunschweig, Germany
  • , M. KochAffiliated withInstitut für Hochfrequenztechnik, Technische Universität Braunschweig, Schleinitzstr. 22, 38106 Braunschweig, Germany

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Abstract.

We present a simple and cheap approach to fabricate large-area stop-band filters and mirrors for the THz range. This approach extends the well-known concept of dielectric mirrors to the far infrared. We use alternating layers of different polymer materials with a typical thickness of several tens of micrometers to build a flexible all-plastic mirror. The structures are characterized by THz time-domain spectroscopy. The experimental results are in good agreement with transfer-matrix simulations.

PACS: 41.20.Jb; 42.70.Qs; 42.79.Fm