Phase conjugation as a probe for noncentrosymmetry grating formation in organics

Fabrice Charra; Jean-Michel Nunzi; Jean Messier

doi:10.1117/12.51157

30 December 1991 Phase conjugation as a probe for noncentrosymmetry grating formation in organics

Fabrice Charra, Jean-Michel Nunzi, Jean Messier

Proceedings Volume 1516, International Workshop on Photoinduced Self-Organization Effects in Optical Fiber; (1991) https://doi.org/10.1117/12.51157
Event: International Workshop on Photoinduced Self-Organization Effects in Optics, 1991, Quebec City, Canada

Abstract

We report on specific experiments of optical phase conjugation by non-degenerate six-wave mixing processes involving fifth-order nonlinear susceptibilities. Both processes are enhanced by simultaneous one- and two-photon resonances with the second-harmonic of Nd:YAG laser. We show that light induced second-order susceptibility is much more efficient in noncentrosymmetric (Diethylaminonitrostolbene) than in centrosymmetric (Polydiacetylene) molecules in solutions. We obtain a 2.5 fm/v 210 picosecond-lived phase-matched frequency-doubling susceptibi1ity. The effect is an orientational hole burning in the isotropic distribution of non-centrosymmetric molecules.

Citation Download Citation

Fabrice Charra, Jean-Michel Nunzi, and Jean Messier "Phase conjugation as a probe for noncentrosymmetry grating formation in organics", Proc. SPIE 1516, International Workshop on Photoinduced Self-Organization Effects in Optical Fiber, (30 December 1991); https://doi.org/10.1117/12.51157

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