Variable index material for optical switching and real time holo

Details Variable index material for optical switching and real time holo Variable index material for optical switching and real time holo

1994-09-19

1995-12-05

Pianalto, Bernard

Stock material or miscellaneous articles

Composite

Of silicon containing

4271632, 4274071, 427553, 427595, B32B 904

Patent

active

054727863

ABSTRACT:
A new variable index material is described which provides rapid changes in refractive index. The disclosed materials are useful for coatings and films that provide photosensitive materials for holographic recording with high efficiency. The materials are also useful for modulating the coupling ratio in fiber optic couplers for optical switching. The new materials incorporate polymeric dialkylsilane ferrocenylene and long chain fatty acids.

REFERENCES:
Bergh et al., "Single-Mode Fibre Optic Directional Coupler," Electron Lett., 16:260-261, 1980. (no month available).
Fischer et al., "Derivatization of Surfaces via Reaction of Strained Silicon-Carbon Bonds. Characterization by Photoacoustic Spectroscopy," Journal of the American Chemical Society, pp. 6501-6506, 1979. (no month available).
Halperin, "Properties of a Particle in a One-Dimensional Random Potential," Advances in Chemical Physics, 13:123-177. (no date available).
Nguyen and Diaz, "High Molecular Weight Poly(ferrocenediyl-silanes): Synthesis and Electrochemistry of [--CH.sub.5 H.sub.4)Fe(C.sub.5 H.sub.4)SiR.sub.2 --].sub.n, R=Me, Et, n-Bu, n-Hex," Chem. Mater., 5:(10):1389-1394, 1993. (no month available).

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