The Measurement of the Optical Constants of Thin Solid Films in the Infrared

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Abstract:

A technique previously described for the measurement of the optical constants of thin liquid films in the infrared has been extended to free-standing films of polymers. It is established that the computational procedure can cope effectively with the more severe dispersion distortion generated by the large refractive index changes at the solid-air interfaces. The method is illustrated by simulation studies on bands having a damped harmonic oscillator profile and on films of three commercial polymers (Lexan, Trogamid-T, and Saran).

Keywords: Infrared dispersion; Infrared, Techniques, spectroscopic; Optics

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702804731131

Affiliations: 1: Division of Chemistry, National Research Council of Canada, Ottawa, Ontario, Canada K1A 0R6, and The Atlantic Regional Laboratory, National Research Council of Canada, Halifax, Nova Scotia, Canada B3H 3Z1; present address: Statens Naturvårosverk, S-17125, Solna, Sweden 2: Division of Chemistry, National Research Council of Canada, Ottawa, Ontario, Canada K1A 0R6, and The Atlantic Regional Laboratory, National Research Council of Canada, Halifax, Nova Scotia, Canada B3H 3Z1; present address: The Department of Chemistry, The Tokyo Institute of Technology, Ohokayama, Meguro-ku, Tokyo 152 Japan

Publication date: November 1, 1980

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