Dielectric Properties of Conductively Loaded Polyimides in the Far Infrared

The dielectric properties of selected conductively-loaded polyimide samples are characterized in the microwave through far-infrared wavebands. These materials, belonging to the Vespel family, are more readily formed by direct machining than their ceramic-loaded epoxy counterparts and present an inte...

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Veröffentlicht in:Optics letters 2018-11, Vol.43 (21), p.5303-5306
Hauptverfasser: Helson, Kyle R., Miller, Kevin H., Rostem, Karwan, Quijada, Manuel A., Wollack, Edward J.
Format: Artikel
Sprache:eng
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Zusammenfassung:The dielectric properties of selected conductively-loaded polyimide samples are characterized in the microwave through far-infrared wavebands. These materials, belonging to the Vespel family, are more readily formed by direct machining than their ceramic-loaded epoxy counterparts and present an interesting solution for realizing absorptive optical control structures. Measurements spanning a spectral range from 1 to 600 cm(exp −1) (0.03–18 THz) were performed and used in parametrization of the media’s dielectric function at frequencies below ≈3 THz.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.43.005303