Polymer Membranes to Quarter-Wave Match Gaussian Optics

Polymer Membranes to Quarter-Wave Match Gaussian Optics

We demonstrate two simple quarter-wave matches designed in the WR10 band that reduce peak reflected power by 20 and 25 dB near the match frequencies by use of membrane layers on high-density polyethylene (HDPE)-air interfaces. Polytetrafluoroethylene (PTFE)-based membranes that are expanded by regul...

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Veröffentlicht in:IEEE transactions on terahertz science and technology 2013-03, Vol.3 (2), p.187-191
Hauptverfasser: Surek, Jack T., Coder, Jason, Gordon, Joshua, Novotny, David R.
Format: Artikel
Sprache:eng
Schlagworte:
Biomembranes
Index matching
Indexes
Lenses
millimeter-wave optics
Optical surface waves
Slabs
Spectroscopy
standing waves
terahertz (THz) optics
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Beschreibung
Zusammenfassung:We demonstrate two simple quarter-wave matches designed in the WR10 band that reduce peak reflected power by 20 and 25 dB near the match frequencies by use of membrane layers on high-density polyethylene (HDPE)-air interfaces. Polytetrafluoroethylene (PTFE)-based membranes that are expanded by regular air voids are layered upon a solid HDPE slab by use of spray adhesive. S-parameter measurements with and without these layers demonstrate the improved power match with two to three membrane layers applied.
ISSN:2156-342X
2156-3446
DOI:10.1109/TTHZ.2012.2236607