Low-Loss Polymer Films with Adjustable Refractive Index
- 1 July 1973
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 12 (7) , 1581-1583
- https://doi.org/10.1364/ao.12.001581
Abstract
Solution-deposited polymer films with continuously adjustable refractive index (1.489−1.563) are made by blending in solution two polymers: polymethyl methacrylate (PMMA) and styrene-acrylonitrile copolymer (SAN). The dependence of index of refraction on composition was found to be linear, indicating the compatibility of the two polymers on a molecular basis. In films ~2 μm thick losses less than 0.2 dB/cm were measured. For thicker films (3.5 μm) an increased scattering loss was observed in high SAN content films.Keywords
This publication has 5 references indexed in Scilit:
- Loss Measurements in Thin-Film Optical WaveguidesApplied Optics, 1973
- Polarization conversion of light in thin-film waveguidesOptics Communications, 1973
- Solution-Deposited Thin Films as Passive and Active Light-GuidesApplied Optics, 1972
- Light Waves in Thin Films and Integrated OpticsApplied Optics, 1971