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22 December 1993 Optical preparation of organic materials for frequency doubling
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Abstract
The nonlinear optical process which permits the optical preparation of centrosymmetric materials for frequency doubling is described in terms of an orientational hole-burning effect induced through non-zero E3 resonant six-wave mixing. The transient all-optical poling of solutions of organic molecules is demonstrated in a configuration of phase-conjugation pumped at half frequency. A permanent all-optical poling is achieved by seeding preparation under backward and forward geometries in an azoaromatic acrylic copolymer. Figures of merit of the optical nonlinearities relevant to the frequency-doubling process are established. This offers a new molecular engineering route to the control and optimization of phase- matched oriented microstructures for frequency conversion.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jean-Michel Nunzi, Fabrice Charra, and Celine Fiorini "Optical preparation of organic materials for frequency doubling", Proc. SPIE 2044, Photosensitivity and Self-Organization in Optical Fibers and Waveguides, (22 December 1993); https://doi.org/10.1117/12.165673
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