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15 October 2004 Elaboration of optical integrated devices by multiphoton polymerization processes in doped photopolymers
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Nonlinear optical photopolymers are of special interest for the realization of permanent integrated optical circuits via polymerization induced by one or two-photon absorption processes. In this context, we have explored the possibilities to create integrated devices by the 1D and 3D control of the photopolymerization. The various growth forms of self-written wave guides created in the bulk of photopolymerizable resins are presented and analyzed, both experimentally and theoretically. Under quasi-solitonic propagation conditions, the control of the refractive index during the photopolymerization progression allows the elaboration of wave guides over large distances (typically a few cm). We have also taken advantage of the high spatial selectivity of the two-photon absorption procedure for the design of controlled polymerized pathways. By using a two-photon confocal microscopy technique with a femtosecond laser source to activate the polymerization, we demonstrate how it is possible to create optical circuits in the bulk of doped photopolymers. Moreover, the permanent freezing of the orientation of push-pull chromophores embedded in the polymeric matrices opens up the possibility to design integrated circuits with different optical functions. Thus, by combining non linear optical properties and multi-photon polymerization technique, active 3D optical devices can be created in functionalized photopolymers.
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Kokou D. Dorkenoo, Stephane Klein, Alberto Barsella, Cecile Martineau, Chantal Andraud, and Alain F. Fort "Elaboration of optical integrated devices by multiphoton polymerization processes in doped photopolymers", Proc. SPIE 5517, Linear and Nonlinear Optics of Organic Materials IV, (15 October 2004);

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