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Proceedings Paper

New Materials For Second Harmonic Generation: Tentative Control Of Non-Centrosymmetry In Organic Crystals
Author(s): J. F. Nicoud
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Paper Abstract

Organic materials which exhibit nonlinear optical properties are currently of great interest. The design of such molecular materials, having specific physical properties, needs two steps since the macroscopic effect rises from the additive contribution of each molecular unit: search of active molecules and elaboration of efficient condensed phases. New trends in the design of highly hyperpolarizable molecules are described. Then, several strategies in getting nonlinear crystals able to frequency conversions are reviewed. In the absence of accurate predicting methods of crystal packing, the aim is to control the non-centrosymmetry in the solid state: chirality, intermolecular hydrogen-bonding, vanishing ground state dipole moment, extra charge-transfer polar group proved satisfying to get some of the most efficient crystals for quadratic nonlinear optics.

Paper Details

Date Published: 21 December 1988
PDF: 8 pages
Proc. SPIE 0971, Nonlinear Optical Properties of Organic Materials, (21 December 1988); doi: 10.1117/12.948216
Show Author Affiliations
J. F. Nicoud, Institut Charles Sadron (France)

Published in SPIE Proceedings Vol. 0971:
Nonlinear Optical Properties of Organic Materials
Garo Khanarian, Editor(s)

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