Optical Properties of Amorphous Perfluorinated Polymers in the Terahertz Range

Novel amorphous perfluorinated polymers are synthesized and characterized using terahertz (THz) and x-ray spectra. The polymerization of such polymers in which all H atoms are replaced by F is examined. Their optical properties in the THz range show a record low index of refraction for solids in thi...

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Bibliographic Details
Published in:Journal of applied spectroscopy 2018-07, Vol.85 (3), p.374-380
Main Authors: Kitai, M. S., Volkov, W. W., Zharov, A. A., Zubavichus, Ya. V., Konarev, P. V., Nazarov, M. M., Polunin, E. V., Pogodina, Yu. E., Sokolov, V. I.
Format: Article
Language:English
Subjects:
ABSORPTION
Analytical Chemistry
Atomic/Molecular Structure and Spectra
Chemical synthesis
Comparative analysis
INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY
Optical properties
Physics
Physics and Astronomy
POLYMERIZATION
Polymers
Refraction
REFRACTIVE INDEX
Refractivity
Structural members
THZ RANGE
X ray spectra
X-RAY DIFFRACTION
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Summary:Novel amorphous perfluorinated polymers are synthesized and characterized using terahertz (THz) and x-ray spectra. The polymerization of such polymers in which all H atoms are replaced by F is examined. Their optical properties in the THz range show a record low index of refraction for solids in this range. The minimal possible index of refraction for such polymers is estimated. These materials are demonstrated to be highly transparent. The position of a weak absorption maximum in the range 1–2 THz is compared with the characteristic distance between the polymer structural elements that is obtained from an x-ray diffraction analysis of these materials.
ISSN:0021-9037
1573-8647
DOI:10.1007/s10812-018-0660-2