PHOTOINDUCED REFRACTIVE INDEX INCREASE IN POLY(METHYLMETHACRYLATE) AND ITS APPLICATIONS
- 15 June 1970
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 16 (12) , 486-489
- https://doi.org/10.1063/1.1653076
Abstract
Ultraviolet laser radiation at 0.325μ m has been found to produce refractive index increases of up to 3×10−3 in poly(methylmethacrylate) and to resolve at least 5000 lines/mm. The index change is tentatively attributed to localized density increases arising from photoinduced cross linking. Applications to optical waveguides and thick dielectric holograms and gratings are described.Keywords
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