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Proceedings Paper

From electric field-induced second harmonic generation (EFISH) to electro-optic measurements of nonlinear chromophores
Author(s): Christopher R. Moylan; Sally A. Swanson; C. A. Walsh; John I. Thackara; Robert J. Twieg; Robert D. Miller; Victor Y. Lee
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Paper Abstract

Experimental measurements of molecular hyperpolarizabilities can be useful in two ways. First, they allow comparison between different chromophores, so that structure-function relationships can be understood and increasingly nonlinear compounds synthesized. This application requires only good relative measurements. The second and ultimately more important application is prediction of the macroscopic nonlinear optical properties of custom materials. The latter application requires accurate absolute values for the molecular parameters. Examples of both types of comparisons are discussed below. We describe experimental measurements on several types of nonlinear optical chromophores, and the choice of conventions and reference standards that leads to accurate predictions of electro- optic coefficients in poled polymers. The degree to which nonlinearity and thermal stability are correlated is also discussed.

Paper Details

Date Published: 16 December 1993
PDF: 10 pages
Proc. SPIE 2025, Nonlinear Optical Properties of Organic Materials VI, (16 December 1993); doi: 10.1117/12.165256
Show Author Affiliations
Christopher R. Moylan, IBM Almaden Research Ctr. (United States)
Sally A. Swanson, IBM Almaden Research Ctr. (United States)
C. A. Walsh, IBM Almaden Research Ctr. (United States)
John I. Thackara, IBM Almaden Research Ctr. (United States)
Robert J. Twieg, IBM Almaden Research Ctr. (United States)
Robert D. Miller, IBM Almaden Research Ctr. (United States)
Victor Y. Lee, IBM Almaden Research Ctr. (United States)


Published in SPIE Proceedings Vol. 2025:
Nonlinear Optical Properties of Organic Materials VI
Gustaaf R. Moehlmann, Editor(s)

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