Organic Thin Films In Integrated Optics

C. W. Pitt; F. Grunfeld

doi:10.1117/12.935514

28 November 1983 Organic Thin Films In Integrated Optics

C. W. Pitt, F. Grunfeld

Proceedings Volume 0401, Thin Film Technologies I; (1983) https://doi.org/10.1117/12.935514
Event: 1983 International Technical Conference/Europe, 1983, Geneva, Switzerland

Abstract

The molecules which comprise aLangmuir-Blodgett film are often long chain fatty acids. The refractive index of these molecules may be selected by choosing the CH₃chain length, and modified by incorporating a metal ion into the OH termination of the structure. A monomolecular layer of such molecules may be created by spreading the fatty acid on a water surface. The monolayer may then be removed from the water surface by immersing a glass, or similar substrate, through the monolayer; the molecules will adhere to the glass. It is necessary to deposit tens of monolayers onto the substrate, by sequential dipping, in order to fabricate a planar optical waveguide. Some organic fatty acids may be modified by uv Tight, x-ray exposure, orbyanelectron beam, to form stripe waveguides and other integrated optical components. The attraction of such guiding structures is that by fabricating them from molecular layers, the film refractive index and the film thickness can be precisely determined. The energy propagation velocity within the waveguide may thus be accurately predicted.

Citation Download Citation

C. W. Pitt and F. Grunfeld "Organic Thin Films In Integrated Optics", Proc. SPIE 0401, Thin Film Technologies I, (28 November 1983); https://doi.org/10.1117/12.935514

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