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Absorption and scattering in low-loss polymer optical waveguides
KTH, Superseded Departments, Polymer Technology.ORCID iD: 0000-0002-9372-0829
2001 (English)In: Journal of the Optical Society of America. B, Optical physics, ISSN 0740-3224, Vol. 18, no 7, 908-912 p.Article in journal (Refereed) Published
Abstract [en]

The absolute absorption spectra of low-loss optical waveguides, together with their intrinsic and extrinsic scatterings, were measured in the near infrared. Photothermal deflection spectroscopy was used to measure the full absorption spectra of a series of fluorinated cross-linked polymers. Assignment of-CH3,-CH2-, and -OH overtones as well as of combinations of overtones were made by use of the theory of anharmonic vibrations based on a Morse potential for local modes. Details of the molecular potential are given. The total attenuation in slab waveguides made with these polymers was measured by a prism-coupling technique and compared with the absolute absorption. Losses that are due to the material itself and those that are due to the processing are quantified.

Place, publisher, year, edition, pages
2001. Vol. 18, no 7, 908-912 p.
Keyword [en]
photothermal deflection spectroscopy, emitting electrochemical-cells, wave-guides, fibers, light, systems, films
URN: urn:nbn:se:kth:diva-20751ISI: 000169593200003OAI: diva2:339448
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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