Helson, KyleMiller, Kevin H.Rostem, KarwanQuijada, ManuelWollack, Edward J.2022-06-242022-06-242018-10-23Kyle Helson et al. "Dielectric properties of conductively loaded polyimides in the far infrared". Optics letters 43 (21), (01 November 2018) 5303-5306. https://doi.org/10.1364/OL.43.005303https://doi.org/10.1364/OL.43.005303http://hdl.handle.net/11603/25040The dielectric properties of selected conductively-loaded polyimide samples are characterized in 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−1 (0.03 to 18 THz) were preformed and used in parametrization of the media’s dielectric function at frequencies below ≈ 3 THz.4 pagesen-USThis work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.Public Domain Mark 1.0http://creativecommons.org/publicdomain/mark/1.0/Text